{
  "data": {
    "a": {
      "slug": "grep-ai",
      "name": "Grep AI",
      "vendor": "Parcha Labs, Inc.",
      "vendorUrl": "https://grep.ai",
      "kind": "http-api",
      "category": "search",
      "summary": "Grep is a hosted platform from Parcha Labs for building and running research agents that return cited reports and structured output. Outside agents reach it through a REST API, a remote MCP server, an A2A endpoint and two SDKs.",
      "url": "https://www.anchorterminal.com/tools/grep-ai",
      "markdownUrl": "https://www.anchorterminal.com/tools/grep-ai.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/grep-ai.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/grep-ai.json",
      "dns": "grep-ai.grade.anchorterminal.com",
      "repo": "https://github.com/Parcha-ai/grepai-skills",
      "license": "Proprietary service under Parcha Labs' terms of service. The grep-research-skills package on npm is MIT. The @parcha/agentrun and parcha-agentrun SDK packages state no licence in their registry metadata",
      "transports": [
        "http",
        "streamable-http"
      ],
      "remoteUrl": "https://api.grep.ai/api/v2/runs",
      "packages": [
        {
          "registry": "npm",
          "name": "@parcha/agentrun"
        },
        {
          "registry": "pypi",
          "name": "parcha-agentrun"
        },
        {
          "registry": "npm",
          "name": "grep-research-skills"
        }
      ],
      "auth": "mixed",
      "authNotes": "A Bearer credential on every call except the public agent list and publicly shared runs. Self-serve API keys (`parcha-` prefix) are created in the developer dashboard or at POST /api/v2/keys, and can be listed and revoked. The MCP server and delegated integrations take OAuth access tokens issued by Descope, with scopes research:read, research:write, billing:read, experts:read and experts:write. An agent with an AgentMail inbox can sign in through AgentID with an Ed25519 key and no human account. No partner or sales approval is documented for the self-serve plans.",
      "pricing": "freemium",
      "pricingNotes": "Credits, with a medium-effort task counted as 20. The Free Trial has 100 one-time credits and the pricing table marks it without API access, while the 4 October 2026 changelog says new personal accounts start with 500 Wallet credits. Pay As You Go tops up a wallet from $20, also marked without API access. Pro is $200 a month for 1,500 credits and Ultra $500 for 4,500, both with API access. Team plans go through sales. The page says $20 buys 200 credits and its Markdown twin says 100. Whether signup needs a card isn't stated (https://grep.ai/pricing, checked 2026-11-02).",
      "priceSummary": "$200 / mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "Not available. The changelog entry of 8 May 2026 announces x402 and MPP payments for API research, but GET https://api.grep.ai/mpp/v1/api returned 503 `gateway_disabled` (\"MPP gateway is disabled on this deployment\") on 8 October and 2 November 2026, and the grep-research-skills README says the wallet path returns once the gateway is generally available (checked 2026-11-02).",
        "endpoints": []
      },
      "toolCount": 137,
      "popularity": {
        "githubStars": null,
        "npmWeekly": 334,
        "pypiWeekly": 52,
        "asOf": "2026-10-08"
      },
      "docsUrl": "https://grep.ai/developers",
      "llmsTxt": "https://grep.ai/llms.txt",
      "openapi": "https://api.grep.ai/api/v2/openapi.json",
      "capabilities": [
        "search.research",
        "search.answer",
        "kyc.business",
        "kyc.screening",
        "kyc.documents"
      ],
      "tags": [
        "hosted",
        "freemium",
        "mcp",
        "oauth",
        "openapi",
        "llms-txt",
        "python",
        "typescript",
        "async-jobs",
        "webhooks",
        "status-page"
      ],
      "lastRelease": "2026-10-20",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 62.9,
        "grade": "B",
        "agentReady": false,
        "rank": 535,
        "ranked": true,
        "rankOf": 1510,
        "categoryRank": 17,
        "methodology": "0.7",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 70,
          "maintenance": 74,
          "payments": 40,
          "reliability": 50,
          "schema": 83,
          "security": 64,
          "transparency": 61
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-11-02"
        },
        "negative": 0,
        "verdict": "The public API has a 128-operation OpenAPI document, scoped OAuth and API keys, idempotency keys with documented replay rules and a per-run cost cap. No rate limit is published, the MCP server lists 137 tools, the whole service went down twice in the 90 days to 2 November, and API access starts at the $200 a month Pro plan.",
        "bestFor": "Agents that hand off a long research or due-diligence job and want a cited report or structured fields back, including business verification and sanctions screening through built-in agents.",
        "strengths": [
          "Public OpenAPI document with 128 operations, llms.txt and a Markdown twin of every developer page",
          "OAuth with five scopes, plus API keys that can be minted, scoped and revoked through the API",
          "`Idempotency-Key` on run creation, with body-hash matching, a 24-hour replay window and named 409 codes",
          "`max_cost_usd` per run, quota pre-flight and batch cost estimates before billable work starts",
          "Documented agent sign-in through AgentID with no human account, and 500 free credits for an owner's first agent",
          "Dated changelog with 14 entries from 7 August to 20 October 2026"
        ],
        "weaknesses": [
          "No rate limit numbers in the reviewed documentation, and no published SLA. Full outages on 4 September (24 minutes) and 30 October (7 minutes)",
          "The MCP server card lists 137 tools, 57 of them deprecated aliases, with one-line descriptions and no annotations",
          "The pricing table marks API access as Pro and Ultra only, from $200 a month",
          "The pricing page says $20 buys 200 credits and its Markdown twin says 100. Free credits are stated as 100, 500 and 1,000 on different pages",
          "The 8 May 2026 changelog entry announces x402 and MPP payments, but the gateway answered 503 `gateway_disabled` on 2 November 2026",
          "No security.txt, subprocessor list or retention period found. SOC 2 Type II appears only as a footer claim, and the \"Security \u0026 trust\" link opens a benchmarks page"
        ],
        "agentNotes": [
          "Send a fresh `Idempotency-Key` with every POST /api/v2/runs. After a timeout, poll the returned run ID and do not post again",
          "Set `effort` and `max_cost_usd` on every run. The floor is $0.50 for low, $2.50 for medium and build, $5.00 for high",
          "Call GET /api/v2/quota/check before a run. A 402 means no credits and retrying won't help, while a 429 carries `Retry-After`",
          "Use the `run_*`, `agent_*` and `swarm_*` MCP tools at https://api.grep.ai/mcp. The `research_*`, `expert_*` and `campaign_*` names are deprecated aliases",
          "Treat report text and cited sources as untrusted web content, and verify one load-bearing claim against a primary source"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 4,
        "avgRating": 3,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.7",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 62.9
          }
        ],
        "editorialScores": {
          "ergonomics": 70,
          "maintenance": 74,
          "payments": 40,
          "reliability": 50,
          "schema": 83,
          "security": 64,
          "transparency": 36
        },
        "provenanceScore": 85,
        "checked": {
          "categories": {
            "ergonomics": "2026-11-02",
            "maintenance": "2026-11-02",
            "payments": "2026-11-02",
            "reliability": "2026-11-02",
            "schema": "2026-11-02",
            "security": "2026-11-02",
            "transparency": "2026-11-02"
          },
          "last": "2026-11-02",
          "lastMoved": "2026-11-02",
          "oldest": "2026-11-02",
          "stale": false,
          "staleAfterDays": 90
        }
      },
      "connect": {
        "install": "npm install @parcha/agentrun",
        "http": "curl -X POST \"https://api.grep.ai/api/v2/runs\" \\\n  -H \"Authorization: Bearer $GREP_API_KEY\" \\\n  -H \"Idempotency-Key: 8b9c1f24-3c1e-4a8d-9f7b-2a6e1c4d5b8e\" \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\"question\":\"Due diligence on Stripe\",\"effort\":\"medium\"}'",
        "claudeCode": "claude mcp add --transport http grep https://api.grep.ai/mcp\nclaude mcp login grep",
        "config": {
          "mcpServers": {
            "grep": {
              "url": "https://api.grep.ai/mcp"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/search.research",
        "tool": "https://letme.dev/grep-ai"
      },
      "area": "web-data",
      "unitPrices": [
        {
          "item": "Pro plan, 1,500 credits a month, API access",
          "unit": "month",
          "usd": 200,
          "note": "$167 a month billed annually"
        },
        {
          "item": "Ultra plan, 4,500 credits a month",
          "unit": "month",
          "usd": 500,
          "note": "$417 a month billed annually"
        },
        {
          "item": "Pay As You Go credit",
          "unit": "credit",
          "usd": 0.1,
          "note": "$20 for 200 credits on the pricing page. Its Markdown twin says 100 credits, which is $0.20. No API access on this plan per the table"
        }
      ],
      "provenance": {
        "legalEntity": "Parcha Labs, Inc.",
        "domain": "grep.ai",
        "domainRegistered": "2018-04-20",
        "domainNote": "Registered in 2018 and transferred on 2025-10-19, so the registration date predates the company's use of it.",
        "endpointOnVendorDomain": true,
        "terms": "https://grep.ai/terms",
        "privacy": "https://grep.ai/privacy",
        "statusPage": "https://status.grep.ai",
        "changelog": "https://grep.ai/changelog",
        "securityTxt": "none",
        "checked": "2026-10-08",
        "notes": [
          "The terms of service, last updated 20 March 2026, are a contract with Parcha Labs, Inc., a Delaware corporation, governed by California law.",
          "The privacy policy, last updated 5 October 2026, names Parcha Labs, Inc. and the websites www.parcha.ai and grep.parcha.ai.",
          "The API, the MCP server and the A2A endpoint answer on api.grep.ai. OAuth tokens come from Descope at api.descope.com.",
          "grep.ai/.well-known/security.txt and api.grep.ai/.well-known/security.txt return 404. grep.ai/trust and grep.ai/security return 404.",
          "RDAP for grep.ai gives a registration date of 2018-04-20 and a transfer on 2025-10-19.",
          "The status page's support link is support@parcha.ai and its privacy link points to parcha.ai."
        ],
        "score": 85
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/grep-ai.json",
      "live": {
        "slug": "grep-ai",
        "probe": {
          "target": "https://api.grep.ai/api/v2/runs",
          "method": "get",
          "lastAt": "2026-11-07T19:22:10.160604461Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 385,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 99.92,
          "p50ms24h": 366,
          "p95ms24h": 454,
          "samples24h": 238,
          "samples30d": 7473,
          "days": [
            {
              "date": "2026-10-08",
              "probes": 93,
              "ok": 93
            },
            {
              "date": "2026-10-09",
              "probes": 250,
              "ok": 250
            },
            {
              "date": "2026-10-10",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-11",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-12",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-13",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-14",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-10-15",
              "probes": 253,
              "ok": 252
            },
            {
              "date": "2026-10-16",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-17",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-18",
              "probes": 256,
              "ok": 256
            },
            {
              "date": "2026-10-19",
              "probes": 255,
              "ok": 255
            },
            {
              "date": "2026-10-20",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-21",
              "probes": 253,
              "ok": 252
            },
            {
              "date": "2026-10-22",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-23",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-24",
              "probes": 251,
              "ok": 251
            },
            {
              "date": "2026-10-25",
              "probes": 250,
              "ok": 250
            },
            {
              "date": "2026-10-26",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-27",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-10-28",
              "probes": 251,
              "ok": 250
            },
            {
              "date": "2026-10-29",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-30",
              "probes": 249,
              "ok": 248
            },
            {
              "date": "2026-10-31",
              "probes": 251,
              "ok": 251
            },
            {
              "date": "2026-11-01",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-11-02",
              "probes": 250,
              "ok": 250
            },
            {
              "date": "2026-11-03",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-11-04",
              "probes": 246,
              "ok": 246
            },
            {
              "date": "2026-11-05",
              "probes": 185,
              "ok": 183
            },
            {
              "date": "2026-11-06",
              "probes": 241,
              "ok": 241
            },
            {
              "date": "2026-11-07",
              "probes": 197,
              "ok": 197
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.grep.ai",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-11-07T19:22:13.738880438Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "Parcha-ai/grepai-skills",
            "version": "v0.2.0",
            "released": "2026-08-04",
            "seenAt": "2026-11-06T23:31:17.343670403Z"
          },
          {
            "registry": "npm",
            "name": "@parcha/agentrun",
            "version": "0.3.6",
            "seenAt": "2026-11-06T23:31:15.147980263Z"
          },
          {
            "registry": "npm",
            "name": "grep-research-skills",
            "version": "0.2.0",
            "seenAt": "2026-11-06T23:31:16.618593403Z"
          },
          {
            "registry": "pypi",
            "name": "parcha-agentrun",
            "version": "0.2.1",
            "released": "2026-09-30",
            "seenAt": "2026-11-06T23:31:16.377788056Z"
          }
        ],
        "githubStars": 2,
        "npmWeekly": 336,
        "pypiWeekly": 21,
        "securityTxt": {
          "url": "https://grep.ai/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-11-07T16:01:30.039104122Z"
        },
        "llmsTxt": {
          "url": "https://grep.ai/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-11-07T15:32:39.189807584Z"
        },
        "domain": {
          "domain": "grep.ai",
          "registered": "2018-04-20",
          "source": "https://rdap.identitydigital.services/rdap/domain/grep.ai",
          "checkedAt": "2026-11-01T14:26:20.014848352Z"
        },
        "pages": [
          {
            "url": "https://grep.ai/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-11-07T14:10:39.133932414Z",
            "changedAt": "2026-11-06T13:32:44.195749968Z",
            "fingerprint": "b2c46460857a"
          },
          {
            "url": "https://grep.ai/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-11-07T14:10:41.715097295Z",
            "changedAt": "2026-11-06T13:32:46.726727473Z",
            "fingerprint": "b50267997523"
          },
          {
            "url": "https://grep.ai/privacy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-11-07T14:10:43.416139624Z",
            "changedAt": "2026-11-06T13:32:48.542806474Z",
            "fingerprint": "61f7ae5ed58d"
          },
          {
            "url": "https://grep.ai/terms",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-11-07T14:10:45.461789114Z",
            "changedAt": "2026-11-06T13:32:50.740021371Z",
            "fingerprint": "b92beb6db8a5"
          }
        ],
        "mcpTools": {
          "url": "https://api.grep.ai/mcp",
          "checkedAt": "2026-11-07T01:45:17.533792685Z",
          "status": "auth",
          "note": "asks for credentials before listing its tools",
          "changedAt": "2026-11-07T01:45:17.533792685Z"
        },
        "github": {
          "repo": "parcha-ai/grepai-skills",
          "checkedAt": "2026-11-02T09:14:59.133383273Z",
          "stars": 3,
          "archived": false,
          "issuesEnabled": true,
          "pushedAt": "2026-11-02T06:32:53Z",
          "openIssues": 1,
          "openPRs": 1,
          "issuesOpened90d": 0,
          "issuesClosed90d": 0,
          "prsMerged90d": 2,
          "ci": {
            "branch": "main",
            "runs": 2,
            "success": 2,
            "failure": 0,
            "other": 0,
            "latest": "success",
            "latestAt": "2026-09-30T18:10:13Z"
          },
          "replies": {
            "sampled": 1,
            "unanswered": 1
          }
        },
        "updatedAt": "2026-11-07T19:22:10.160604461Z"
      }
    },
    "answer": "Perplexity Search API scores 70.2 (BB) on agent readiness against Grep AI's 62.9 (B), and leads in 5 of 7 scored categories. Grep AI leads on security \u0026 auth and payments \u0026 pricing.",
    "b": {
      "slug": "perplexity-search-api",
      "name": "Perplexity Search API",
      "vendor": "Perplexity",
      "vendorUrl": "https://www.perplexity.ai/",
      "kind": "http-api",
      "category": "search",
      "summary": "Perplexity's Search API returns ranked web results with extracted page text as JSON from Perplexity's own index, through `POST /search`. The same key reaches the Agent API's web_search tool for cited answers, and a hosted MCP server wraps both.",
      "url": "https://www.anchorterminal.com/tools/perplexity-search-api",
      "markdownUrl": "https://www.anchorterminal.com/tools/perplexity-search-api.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/perplexity-search-api.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/perplexity-search-api.json",
      "dns": "perplexity-search-api.grade.anchorterminal.com",
      "repo": "https://github.com/perplexityai/modelcontextprotocol",
      "license": "Proprietary service under the Perplexity API Terms of Service. The MCP server is MIT and the official SDKs Apache-2.0",
      "transports": [
        "streamable-http",
        "stdio"
      ],
      "remoteUrl": "https://api.perplexity.ai/mcp",
      "packages": [
        {
          "registry": "pypi",
          "name": "perplexityai"
        },
        {
          "registry": "npm",
          "name": "@perplexity-ai/perplexity_ai"
        },
        {
          "registry": "npm",
          "name": "@perplexity-ai/mcp-server"
        }
      ],
      "auth": "mixed",
      "authNotes": "Bearer Perplexity API key in the `Authorization` header. Keys belong to a project in the API console, are shown once, and can be generated and revoked through `/generate_auth_token` and `/revoke_auth_token`, with a rotation guide. No per-key scopes found. The hosted MCP server also accepts Sign in with Perplexity (OAuth), where the user picks the organisation to bill.",
      "pricing": "usage",
      "pricingNotes": "$5 per 1,000 successful Search API requests, or $1 with Fast Search, with up to five queries per request billed once. Invalid, rate-limited and failed requests are not billed. Agent API web_search is $2.50 per 1,000 calls plus model tokens. Prepaid credits with a card. No free allowance found.",
      "priceSummary": "$5 / 1k req",
      "where": "both",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the Search API docs, the pricing page, the OpenAPI description or llms.txt (checked 2026-11-06). An empty balance returns 402 Payment Required with no payment requirements, per the FAQ.",
        "endpoints": []
      },
      "toolCount": 4,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-11-06"
      },
      "docsUrl": "https://docs.perplexity.ai/docs/search/overview",
      "llmsTxt": "https://docs.perplexity.ai/llms.txt",
      "openapi": "https://docs.perplexity.ai/openapi.json",
      "registryName": "ai.perplexity/mcp-server",
      "capabilities": [
        "web.search",
        "search.answer",
        "search.research"
      ],
      "tags": [
        "hosted",
        "usage-priced",
        "prepaid",
        "card-required",
        "closed-source",
        "openapi",
        "llms-txt",
        "mcp",
        "remote-mcp",
        "mcp-registry",
        "python",
        "typescript",
        "status-page",
        "soc2"
      ],
      "lastRelease": "2026-10-23",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 70.2,
        "grade": "BB",
        "agentReady": true,
        "rank": 211,
        "ranked": true,
        "rankOf": 1510,
        "categoryRank": 5,
        "methodology": "0.7",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 85,
          "maintenance": 82,
          "payments": 25,
          "reliability": 80,
          "schema": 89,
          "security": 56,
          "transparency": 66
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-11-06"
        },
        "negative": 0,
        "verdict": "Raw ranked results with token-capped page text from Perplexity's own index, $5 per 1,000 requests or $1 with Fast Search, an OpenAPI description and a hosted MCP server with read-only annotations. Uptime is not guaranteed, there is no free allowance, keys carry no scopes, and no guidance on untrusted page text was found.",
        "bestFor": "Agents on any model that need raw ranked sources with extracted text at a low per-request price, and teams that want cited answers from the same key through the Agent API.",
        "strengths": [
          "OpenAPI 3.1 description of `POST /search` with enums and limits, llms.txt and a Markdown twin of every docs page",
          "`max_tokens`, `max_tokens_per_page` and `max_results` cap what reaches the model, and up to five queries share one billed request",
          "Per-request prices published without login, and invalid, rate-limited and failed requests are not billed",
          "Hosted MCP server with OAuth or a key; the local server is in the official registry under the verified ai.perplexity namespace",
          "security.txt valid to 31 December 2027, a SOC 2 Type II report and a SECURITY.md that takes private reports"
        ],
        "weaknesses": [
          "The FAQ says uptime and recovery time are not guaranteed, and the terms carry no SLA",
          "No free allowance and prepaid credits with a card; Stripe Projects still needs a $10 purchase",
          "Project keys have no scopes or spending limits, so any key can run every API on the account",
          "No guidance on treating returned snippets as untrusted text was found in the docs or the MCP server",
          "The DPA says Perplexity Search may follow different data terms, and no retention period for search queries is stated"
        ],
        "agentNotes": [
          "Set `max_tokens_per_page` and `max_tokens` before calling; extracted text otherwise fills the context, and the price does not change with size",
          "Skip results with an empty `snippet` and dedupe by `url` when sending a `query` array; each query costs one rate-limit unit",
          "Use `search_type: \"fast\"` for $1 per 1,000 when latency and cost matter more than depth",
          "On 429 wait for Retry-After, then back off; on 402 stop and ask the user to add credits",
          "Use the Search API for sources and the Agent API's web_search tool for a written answer with citations"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "BB",
            "methodology": "0.7",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 70.2
          }
        ],
        "editorialScores": {
          "ergonomics": 85,
          "maintenance": 82,
          "payments": 25,
          "reliability": 80,
          "schema": 89,
          "security": 56,
          "transparency": 51
        },
        "provenanceScore": 80,
        "checked": {
          "categories": {
            "ergonomics": "2026-11-06",
            "maintenance": "2026-11-06",
            "payments": "2026-11-06",
            "reliability": "2026-11-06",
            "schema": "2026-11-06",
            "security": "2026-11-06",
            "transparency": "2026-11-06"
          },
          "last": "2026-11-06",
          "oldest": "2026-11-06",
          "stale": false,
          "staleAfterDays": 90
        }
      },
      "connect": {
        "install": "pip install perplexityai",
        "http": "curl -X POST https://api.perplexity.ai/search \\\n  -H \"Authorization: Bearer $PERPLEXITY_API_KEY\" \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\"query\": \"renewable energy technologies\", \"max_results\": 10, \"max_tokens\": 50000, \"max_tokens_per_page\": 4096}'",
        "claudeCode": "claude mcp add --transport http perplexity https://api.perplexity.ai/mcp",
        "config": {
          "mcpServers": {
            "perplexity": {
              "url": "https://api.perplexity.ai/mcp"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/web.search",
        "tool": "https://letme.dev/perplexity-search-api"
      },
      "sameCompany": [
        "perplexity-space",
        "pplx-decider",
        "pplx-decider-flash"
      ],
      "area": "web-data",
      "unitPrices": [
        {
          "item": "Search API request",
          "unit": "1k-requests",
          "usd": 5,
          "note": "Up to five queries in one request billed once; failed and rate-limited requests not billed"
        },
        {
          "item": "Search API request with Fast Search",
          "unit": "1k-requests",
          "usd": 1,
          "note": "`search_type: \"fast\"`"
        },
        {
          "item": "Agent API web_search call",
          "unit": "1k-calls",
          "usd": 2.5,
          "note": "Plus model tokens; $1.00 with Fast Search"
        },
        {
          "item": "Agent API fetch_url call",
          "unit": "1k-calls",
          "usd": 0.5,
          "note": "Plus model tokens"
        }
      ],
      "provenance": {
        "legalEntity": "Perplexity AI, Inc.",
        "domain": "perplexity.ai",
        "domainRegistered": "",
        "endpointOnVendorDomain": true,
        "terms": "https://www.perplexity.ai/hub/legal/perplexity-api-terms-of-service",
        "privacy": "https://www.perplexity.ai/hub/legal/privacy-notice",
        "statusPage": "https://status.perplexity.com/",
        "changelog": "https://docs.perplexity.ai/docs/resources/changelog",
        "securityTxt": "valid",
        "checked": "2026-11-06",
        "notes": [
          "The API Terms of Service (last updated 23 January 2026) name Perplexity AI, Inc. and California law. The Data Processing Addendum (last updated 13 August 2026) deletes personal data within 30 days of the service ending and notes that Perplexity Search may follow different data terms.",
          "www.perplexity.ai/.well-known/security.txt is valid until 31 December 2027 and links www.perplexity.ai/security.",
          "The status page moved to incident.io on 10 September 2026 and has Website, App, Computer and API components, with no separate Search component.",
          "docs.perplexity.ai/robots.txt allows the docs and carries Content-Signal ai-train=yes, search=yes, ai-input=yes. The terms have no clause on automated access to the website.",
          "The changelog dates entries by month only. Domain registration was not checked."
        ],
        "score": 80
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/perplexity-search-api.json",
      "live": {
        "slug": "perplexity-search-api",
        "probe": {
          "target": "https://api.perplexity.ai/mcp",
          "method": "get",
          "lastAt": "2026-11-07T19:22:25.812257306Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 194,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 165,
          "p95ms24h": 266,
          "samples24h": 210,
          "samples30d": 210,
          "days": [
            {
              "date": "2026-11-06",
              "probes": 13,
              "ok": 13
            },
            {
              "date": "2026-11-07",
              "probes": 197,
              "ok": 197
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.perplexity.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-11-07T19:23:08.772447999Z"
        },
        "versions": [
          {
            "registry": "mcp-registry",
            "name": "ai.perplexity/mcp-server",
            "version": "1.2.1",
            "seenAt": "2026-11-07T18:16:28.95801333Z"
          },
          {
            "registry": "npm",
            "name": "@perplexity-ai/mcp-server",
            "version": "1.3.0",
            "seenAt": "2026-11-06T23:55:31.394431614Z"
          },
          {
            "registry": "npm",
            "name": "@perplexity-ai/perplexity_ai",
            "version": "0.41.0",
            "seenAt": "2026-11-06T23:55:30.575713692Z"
          },
          {
            "registry": "pypi",
            "name": "perplexityai",
            "version": "0.46.1",
            "released": "2026-10-23",
            "seenAt": "2026-11-06T23:55:30.34668899Z"
          }
        ],
        "githubStars": 2612,
        "npmWeekly": 97298,
        "pypiWeekly": 401537,
        "securityTxt": {
          "url": "https://perplexity.ai/.well-known/security.txt",
          "state": "valid",
          "expires": "2027-12-31T00:00:00Z",
          "checkedAt": "2026-11-07T16:01:03.917430365Z"
        },
        "llmsTxt": {
          "url": "https://docs.perplexity.ai/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-11-07T15:33:36.681222085Z"
        },
        "pages": [
          {
            "url": "https://docs.perplexity.ai/docs/resources/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-11-07T14:07:27.675707255Z",
            "changedAt": "2026-11-06T13:29:48.535494355Z",
            "fingerprint": "a52a171e1f1f"
          },
          {
            "url": "https://www.perplexity.ai/hub/legal/privacy-notice",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-11-07T14:32:54.875760985Z",
            "changedAt": "2026-11-06T13:53:25.792168971Z",
            "fingerprint": "29c9dd01613d"
          },
          {
            "url": "https://www.perplexity.ai/hub/legal/perplexity-api-terms-of-service",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-11-07T14:32:50.897959644Z",
            "changedAt": "2026-11-06T13:53:22.592031411Z",
            "fingerprint": "6a7e4a95f45b"
          }
        ],
        "mcpTools": {
          "url": "https://api.perplexity.ai/mcp",
          "checkedAt": "2026-11-07T01:46:49.011542458Z",
          "status": "auth",
          "note": "asks for credentials before listing its tools",
          "changedAt": "2026-11-07T01:46:49.011542458Z"
        },
        "updatedAt": "2026-11-07T19:23:08.772447999Z"
      }
    },
    "edges": [
      {
        "by": 30,
        "category": "reliability",
        "leads": "perplexity-search-api",
        "name": "Reliability",
        "reasons": {
          "a": "Graded on the hosted API and MCP server. status.grep.ai runs on incident.io, and since 30 October 2026 it has an API component beside Website (20). Two incidents in the 90 days from 4 August, read from the page's feed and incident pages. On 4 September \"Grep.ai currently unavailable\" said Grep.ai was \"experiencing an outage\" for 24 minutes, and on 30 October the Website and API components were both in full outage from 17:17 to 17:24 UTC after an infrastructure provider's failure. Each is a full outage of the whole service, which this run reads as a major however short, so two majors (5). The 8 October check read the September outage as minor by its length. No rate limit numbers found in the docs or the OpenAPI document (0). 429 `rate_limited` carries `Retry-After`, and run creation takes an `Idempotency-Key` with documented replay rules (15). The FAQ mentions SLA guarantees for enterprise customers, and no SLA is published (0). API v2 and the MCP server carry no beta label. The SDKs are at 0.2.1 per the 8 October check, and PyPI classified the Python one as Alpha then (10).",
          "b": "Graded on the hosted lines, for `POST /search` and the hosted MCP server. status.perplexity.com, on incident.io since 10 September 2026, has an API component with an RSS feed and a JSON summary. There is no separate Search component (20). In the 90 days from 8 August the feed lists 'Investigating API issue' on 13 August, resolved with no detail, a usage-based billing issue on 3 September, and on 9 October elevated errors on the website, app and Computer, where the API 'remained operational throughout'. Minor only, with the caveat that history before the migration may be incomplete (20). The Search API is limited to 50 query units a second with a burst of 50 on every tier, and the other APIs publish QPS and token limits per tier (15). 429 carries Retry-After and an `error.type`, the SDKs retry 429 and 5xx twice honouring Retry-After, the Search best-practices page shows backoff, and failed or rate-limited searches are not billed. Searches have no side effects (15). The FAQ says Perplexity does not guarantee uptime, failure frequency or recovery time, and the terms carry no SLA (0). No beta label on the Search API, launched on 25 September 2025 (10). 20 + 20 + 15 + 15 + 0 + 10 = 80."
        },
        "scores": {
          "a": 50,
          "b": 80
        }
      },
      {
        "by": 15,
        "category": "ergonomics",
        "leads": "perplexity-search-api",
        "name": "Agent ergonomics",
        "reasons": {
          "a": "The MCP server card lists 137 tools, 57 of them deprecated aliases, with no documented toolsets. Reports default to plain Markdown and large files come back as signed URLs, so some credit back (8). Cursor pagination with `limit` on runs, timelines and transactions, and server-side filters on the skill and tool lists (18). One error envelope with stable codes and a `request_id`, and 402 for credits kept apart from 429 for rate (20). `Idempotency-Key` with body-hash matching and a 24-hour replay window. The server card shows no readOnlyHint or destructiveHint annotations, and the live tool list wasn't read (12). Only `question` is required and `effort` defaults to low. TypeScript and Python SDKs exist, though one docs page still calls the release pending and names a PyPI package that returns 404 (12).",
          "b": "`max_results` 1 to 20, `max_tokens` and `max_tokens_per_page` cap the extracted text, and results are title, url, snippet and two dates. The MCP server has four tools (23 of 25). Domain, language, recency, publication and update date filters and `country`, with up to five queries in one request. No pagination or offset (16 of 20). 429 bodies name the limit hit, the SDKs map status codes to typed errors, and 402 marks an empty balance. Search-specific error bodies beyond 422 validation are not documented (13 of 20). Searches only read, failed and rate-limited requests are not billed, and the MCP server sets readOnlyHint true, destructiveHint false and idempotentHint false on every tool (18 of 20). Only `query` is required. Official Python and TypeScript SDKs, a CLI and a Python Search SDK (15). 23 + 16 + 13 + 18 + 15 = 85."
        },
        "scores": {
          "a": 70,
          "b": 85
        }
      },
      {
        "by": 15,
        "category": "payments",
        "leads": "grep-ai",
        "name": "Payments \u0026 pricing",
        "reasons": {
          "a": "No machine payment protocol on the live endpoints. The changelog of 8 May 2026 announces x402 and MPP, and the gateway answered 503 `gateway_disabled` on 8 October and again on 2 November 2026 (0). Plan and credit prices are public, but only the medium tier's credit cost is published and the page and its Markdown twin disagree on credits per dollar (10). 100 free trial credits on the pricing page, 500 Wallet credits for new personal accounts in the 4 October changelog entry, and 500 for an owner's first agent through AgentID. The pricing page doesn't say whether a card is needed, and its table marks the trial without API access (15). AgentID sign-in is documented as needing no human account, but it depends on an AgentMail inbox and a browser step, and we didn't run it (15).",
          "b": "No x402, MPP or L402 in the docs, pricing page, OpenAPI or llms.txt (0). $5 per 1,000 successful requests, $1 with Fast Search, published without a login, with failed and rate-limited requests not billed (20). Usage is prepaid with a card on the billing page, and no free allowance was found. The console playground needs no key but is a page for a person, not an API allowance (0). A person signs up in the console. The Stripe Projects route provisions a project, key and credits from a terminal, but needs a person's Stripe account with a payment method and a $10 minimum purchase (5 of 20, as on the Decisions API listing). 0 + 20 + 0 + 5 = 25."
        },
        "scores": {
          "a": 40,
          "b": 25
        }
      },
      {
        "by": 8,
        "category": "security",
        "leads": "grep-ai",
        "name": "Security \u0026 auth",
        "reasons": {
          "a": "OAuth through Descope with five scopes, and API keys that can be created with a subset of scopes, listed and revoked through the API (30). Read scopes, `validate_only` and `dry_run` on agent changes, a per-run `max_cost_usd` and versioned restores. No confirmation step for deletes or for making a run public (14). Reports are built from untrusted web pages. The docs describe an SSRF-guarded fetch for context files, and no prompt-injection guidance for callers was found (3). Each run has a timeline of execution events, and billing transactions and usage are readable through the API (12). The footer claims SOC 2 Type II with no report linked, and its \"Security \u0026 trust\" link opens a performance benchmarks page. security.txt returns 404, and no disclosure policy or bug bounty was found, so this is a bare SOC 2 claim, which this run reads as 5 (5). Webhooks are signed with the API key itself.",
          "b": "Project API keys, shown once, revocable, and generated and revoked through two documented endpoints with a rotation guide. No per-key scopes or spending limits were found. The hosted MCP server also takes Sign in with Perplexity (OAuth). Keys go in the Authorization header only (22 of 30, as on the Decisions API listing). Search only reads, and MCP clients can disable tools, but any key reaches every API on the account, including the Agent API's sandbox and MCP tools (8 of 20). Snippets are third-party page text, and no guidance on treating them as untrusted was found in the docs, the MCP server or its SECURITY.md (0 of 15). Responses carry a request `id`, and the console shows usage by key. The Audit API covers enterprise organisations' web app events with its own keys, not API calls (8 of 15). security.txt valid until 31 December 2027 linking a security page, a SOC 2 Type II report, a 2025 HIPAA gap assessment and a CAIQlite listed on the trust centre, and a SECURITY.md on the MCP server that takes private reports through GitHub advisories or security@perplexity.ai. The trust centre is drawn by script and wasn't read (18 of 20). 22 + 8 + 0 + 8 + 18 = 56."
        },
        "scores": {
          "a": 64,
          "b": 56
        }
      },
      {
        "by": 8,
        "category": "maintenance",
        "leads": "perplexity-search-api",
        "name": "Maintenance \u0026 community",
        "reasons": {
          "a": "The changelog's newest entry is v3.71 on 20 October 2026, 13 days before this check (30). 14 dated changelog entries since 4 August, from v3.1.1 on 7 August to v3.71 on 20 October (20). Closed service with a public changelog and support at support@parcha.ai. We didn't test whether support answers (8). Current SDKs in two languages per the 8 October check (@parcha/agentrun and parcha-agentrun 0.2.1, 30 September), with docs that lag them. Not found in the official MCP registry (12). The skills repository runs a test workflow and hasn't changed since 30 September. The SDK repositories named in the package metadata asked for credentials, so their CI wasn't read (4). The 8 October PyPI reading came from a path pypi.org's robots.txt disallows and is struck; npm and PyPI didn't answer on 2 November.",
          "b": "Read as a closed service with official SDKs and an open-source MCP server. perplexityai 0.46.1 on PyPI on 23 October 2026 and the MCP server's last commit on 21 October, with changelog entries into November 2026 (30). In the 90 days from 8 August, perplexityai 0.43.7 to 0.46.1 (six releases from 2 October), MCP server 1.2.1 (27 August) and 1.3.0 (25 September, Fast Search on perplexity_search), and Fast Search itself in September (20). A changelog with several entries a month, a community forum with a bug-report category, a GitHub discussion repository and api@perplexity.ai. MCP issue reply times weren't read (10 of 15). The MCP server is in the official registry under the domain-verified ai.perplexity namespace, and the Python and TypeScript SDKs are current (15). The MCP repository runs tests in CI and validates its plugin manifests. Its 1.4.0, prepared on 16 October, is not on npm, which still serves 1.3.0, and the registry's latest entry is 1.2.1 of 27 August (7 of 10). 30 + 20 + 10 + 15 + 7 = 82."
        },
        "scores": {
          "a": 74,
          "b": 82
        }
      },
      {
        "by": 6,
        "category": "schema",
        "leads": "perplexity-search-api",
        "name": "Schema \u0026 documentation",
        "reasons": {
          "a": "Public OpenAPI document at api.grep.ai/api/v2/openapi.json, now 128 operations on 98 paths and 159 schemas (25). llms.txt and a Markdown twin of each developer page (10). Most operations carry a description, and the `effort` field says what each tier returns and how long it takes. 19 operations have none, and the MCP server card gives each of its 137 tools one line. The MCP input schemas need OAuth and weren't read (12). 75 enums, numeric bounds and `additionalProperties: false` on the run request (12). Curl examples and an 11-code error registry in the docs, but the OpenAPI document has no examples and documents only 200 and 422 responses (9). The path is versioned, v1 and 42 v2 operations are marked deprecated, and the dated changelog now runs to v3.71 on 20 October 2026, with 14 entries since 4 August (15).",
          "b": "OpenAPI 3.1.0 at docs.perplexity.ai/openapi.json describes `POST /search` with typed request and response schemas, listed in llms.txt (25). llms.txt indexes every page, each with a Markdown twin (10). The overview says what a result holds, that snippets can be empty, when to use the Search API instead of the Agent API, and that it takes queries not URLs and does not re-fetch pages (19 of 20). `search_type` is an enum, `max_results`, `max_tokens` and `max_tokens_per_page` carry minimum and maximum, country and language codes carry lengths, and `query` is a string or an array. The recency filter is an enum in the docs, and date filters are `MM/DD/YYYY` strings (14 of 15). Python, TypeScript and cURL examples with a recorded response. The spec documents only 200 and 422 for `/search`, and status codes are listed on the SDK error-handling page and the rate-limit page rather than for Search (11 of 15). A public changelog with several entries a month, dated by month only, and an unversioned `/search` path (10 of 15). 25 + 10 + 19 + 14 + 11 + 10 = 89."
        },
        "scores": {
          "a": 83,
          "b": 89
        }
      }
    ],
    "facts": [
      {
        "a": "HTTP API",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "Parcha Labs, Inc.",
        "b": "Perplexity",
        "name": "Vendor"
      },
      {
        "a": "https://api.grep.ai/api/v2/runs",
        "b": "https://api.perplexity.ai/mcp",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP, Streamable HTTP",
        "b": "Streamable HTTP, stdio",
        "name": "Transports"
      },
      {
        "a": "OAuth or key",
        "b": "OAuth or key",
        "name": "Auth"
      },
      {
        "a": "Freemium",
        "b": "Pay per use",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "Proprietary service under Parcha Labs' terms of service. The grep-research-skills package on npm is MIT. The @parcha/agentrun and parcha-agentrun SDK packages state no licence in their registry metadata",
        "b": "Proprietary service under the Perplexity API Terms of Service. The MCP server is MIT and the official SDKs Apache-2.0",
        "name": "Licence"
      },
      {
        "a": "137",
        "b": "4",
        "name": "Tools exposed"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "not listed",
        "b": "ai.perplexity/mcp-server",
        "name": "MCP registry"
      },
      {
        "a": "2026-10-20",
        "b": "2026-10-23",
        "name": "Last release"
      },
      {
        "a": "2026-03-20",
        "b": "couldn't be read",
        "name": "Terms last updated"
      },
      {
        "a": "2026-09-21",
        "b": "couldn't be read",
        "name": "Privacy policy last updated"
      },
      {
        "a": "not found in the text",
        "b": "couldn't be read",
        "name": "Customer content may train models"
      },
      {
        "a": "yes",
        "b": "couldn't be read",
        "name": "Terms restrict automated access"
      },
      {
        "a": "not found in the text",
        "b": "couldn't be read",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "not found in the text",
        "b": "couldn't be read",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "not found in the text",
        "b": "couldn't be read",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "334 npm/wk, 52 PyPI/wk",
        "b": "none",
        "name": "Popularity"
      },
      {
        "a": "3/5 (4)",
        "b": "none",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Perplexity Search API scores 70.2 (BB) on agent readiness against Grep AI's 62.9 (B), and leads in 5 of 7 scored categories. Grep AI leads on security \u0026 auth and payments \u0026 pricing.",
        "question": "Which is better for AI agents, Grep AI or Perplexity Search API?"
      },
      {
        "answer": "Both take an API key or an OAuth sign-in.",
        "question": "Do Grep AI and Perplexity Search API need an API key?"
      },
      {
        "answer": "Yes. Grep AI has a hosted endpoint at https://api.grep.ai/api/v2/runs and Perplexity Search API at https://api.perplexity.ai/mcp.",
        "question": "Can an agent call Grep AI and Perplexity Search API without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Security \u0026 auth, 64 against 56",
          "Payments \u0026 pricing, 40 against 25"
        ],
        "also": null,
        "goodFor": "Agents that hand off a long research or due-diligence job and want a cited report or structured fields back, including business verification and sanctions screening through built-in agents.",
        "slug": "grep-ai",
        "watchFor": "No rate limit numbers in the reviewed documentation, and no published SLA. Full outages on 4 September (24 minutes) and 30 October (7 minutes)"
      },
      {
        "aheadOn": [
          "Reliability, 80 against 50",
          "Schema \u0026 documentation, 89 against 83",
          "Agent ergonomics, 85 against 70",
          "Maintenance \u0026 community, 82 against 74",
          "Transparency \u0026 trust, 66 against 61"
        ],
        "also": [
          "Agent-ready, a grade of BB or better",
          "Runs on your own machine"
        ],
        "goodFor": "Agents on any model that need raw ranked sources with extracted text at a low per-request price, and teams that want cited answers from the same key through the Agent API.",
        "slug": "perplexity-search-api",
        "watchFor": "The FAQ says uptime and recovery time are not guaranteed, and the terms carry no SLA"
      }
    ],
    "history": {
      "grep-ai": [
        {
          "causes": [
            "reliability",
            "product",
            "correction"
          ],
          "date": "2026-11-02",
          "delta": -1.7,
          "from": 64.6,
          "fromGrade": "B",
          "to": 62.9,
          "toGrade": "B"
        },
        {
          "causes": [
            "evidence"
          ],
          "date": "2026-10-27",
          "delta": 0.2,
          "from": 64.4,
          "fromGrade": "B",
          "to": 64.6,
          "toGrade": "B"
        }
      ],
      "perplexity-search-api": null
    },
    "job": {
      "capability": "search.research",
      "name": "Research search"
    },
    "others": [
      {
        "json": "https://www.anchorterminal.com/compare/agentcore-web-search-vs-grep-ai.json",
        "title": "Web Search Tool on Amazon Bedrock AgentCore vs Grep AI",
        "url": "https://www.anchorterminal.com/compare/agentcore-web-search-vs-grep-ai"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agentcore-web-search-vs-perplexity-search-api.json",
        "title": "Web Search Tool on Amazon Bedrock AgentCore vs Perplexity Search API",
        "url": "https://www.anchorterminal.com/compare/agentcore-web-search-vs-perplexity-search-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/bing-grounding-vs-perplexity-search-api.json",
        "title": "Grounding with Bing Search vs Perplexity Search API",
        "url": "https://www.anchorterminal.com/compare/bing-grounding-vs-perplexity-search-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/brave-search-mcp-vs-perplexity-search-api.json",
        "title": "Brave Search API + MCP vs Perplexity Search API",
        "url": "https://www.anchorterminal.com/compare/brave-search-mcp-vs-perplexity-search-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cloudflare-web-search-vs-grep-ai.json",
        "title": "Cloudflare Web Search API vs Grep AI",
        "url": "https://www.anchorterminal.com/compare/cloudflare-web-search-vs-grep-ai"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cloudflare-web-search-vs-perplexity-search-api.json",
        "title": "Cloudflare Web Search API vs Perplexity Search API",
        "url": "https://www.anchorterminal.com/compare/cloudflare-web-search-vs-perplexity-search-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-search-api-vs-grep-ai.json",
        "title": "DeepSeek Search and Fetch API vs Grep AI",
        "url": "https://www.anchorterminal.com/compare/deepseek-search-api-vs-grep-ai"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-search-api-vs-perplexity-search-api.json",
        "title": "DeepSeek Search and Fetch API vs Perplexity Search API",
        "url": "https://www.anchorterminal.com/compare/deepseek-search-api-vs-perplexity-search-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/exa-mcp-vs-perplexity-search-api.json",
        "title": "Exa API + MCP vs Perplexity Search API",
        "url": "https://www.anchorterminal.com/compare/exa-mcp-vs-perplexity-search-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/firecrawl-mcp-vs-grep-ai.json",
        "title": "Firecrawl MCP vs Grep AI",
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      {
        "json": "https://www.anchorterminal.com/compare/firecrawl-mcp-vs-perplexity-search-api.json",
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        "url": "https://www.anchorterminal.com/compare/firecrawl-mcp-vs-perplexity-search-api"
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      {
        "json": "https://www.anchorterminal.com/compare/grep-ai-vs-kagi-search.json",
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        "url": "https://www.anchorterminal.com/compare/grep-ai-vs-kagi-search"
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      {
        "json": "https://www.anchorterminal.com/compare/grep-ai-vs-mojeek.json",
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        "url": "https://www.anchorterminal.com/compare/grep-ai-vs-mojeek"
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        "json": "https://www.anchorterminal.com/compare/grep-ai-vs-searchapi-io.json",
        "title": "Grep AI vs SearchAPI.io",
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      {
        "json": "https://www.anchorterminal.com/compare/grep-ai-vs-serpapi.json",
        "title": "Grep AI vs SerpApi",
        "url": "https://www.anchorterminal.com/compare/grep-ai-vs-serpapi"
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      {
        "json": "https://www.anchorterminal.com/compare/grep-ai-vs-serper.json",
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        "url": "https://www.anchorterminal.com/compare/grep-ai-vs-serper"
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      {
        "json": "https://www.anchorterminal.com/compare/grep-ai-vs-serpkite.json",
        "title": "Grep AI vs SerpKite",
        "url": "https://www.anchorterminal.com/compare/grep-ai-vs-serpkite"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kagi-search-vs-perplexity-search-api.json",
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        "url": "https://www.anchorterminal.com/compare/kagi-search-vs-perplexity-search-api"
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      {
        "json": "https://www.anchorterminal.com/compare/linkup-vs-perplexity-search-api.json",
        "title": "Linkup vs Perplexity Search API",
        "url": "https://www.anchorterminal.com/compare/linkup-vs-perplexity-search-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/mojeek-vs-perplexity-search-api.json",
        "title": "Mojeek Web Search API vs Perplexity Search API",
        "url": "https://www.anchorterminal.com/compare/mojeek-vs-perplexity-search-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/newscatcher-vs-perplexity-search-api.json",
        "title": "NewsCatcher vs Perplexity Search API",
        "url": "https://www.anchorterminal.com/compare/newscatcher-vs-perplexity-search-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/parallel-search-api-vs-perplexity-search-api.json",
        "title": "Parallel Search and Task APIs vs Perplexity Search API",
        "url": "https://www.anchorterminal.com/compare/parallel-search-api-vs-perplexity-search-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-searchapi-io.json",
        "title": "Perplexity Search API vs SearchAPI.io",
        "url": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-searchapi-io"
      },
      {
        "json": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-serpapi.json",
        "title": "Perplexity Search API vs SerpApi",
        "url": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-serpapi"
      },
      {
        "json": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-serper.json",
        "title": "Perplexity Search API vs Serper",
        "url": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-serper"
      },
      {
        "json": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-serphouse.json",
        "title": "Perplexity Search API vs SERPHouse",
        "url": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-serphouse"
      },
      {
        "json": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-serpkite.json",
        "title": "Perplexity Search API vs SerpKite",
        "url": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-serpkite"
      },
      {
        "json": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-specstream.json",
        "title": "Perplexity Search API vs SpecStream",
        "url": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-specstream"
      },
      {
        "json": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-tavily-mcp.json",
        "title": "Perplexity Search API vs Tavily API + MCP",
        "url": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-tavily-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-tinyfish-search.json",
        "title": "Perplexity Search API vs TinyFish Search",
        "url": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-tinyfish-search"
      },
      {
        "json": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-valyu.json",
        "title": "Perplexity Search API vs Valyu",
        "url": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-valyu"
      },
      {
        "json": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-you-com-api.json",
        "title": "Perplexity Search API vs You.com APIs",
        "url": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-you-com-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/arcmira-vs-grep-ai.json",
        "title": "Arcmira vs Grep AI",
        "url": "https://www.anchorterminal.com/compare/arcmira-vs-grep-ai"
      },
      {
        "json": "https://www.anchorterminal.com/compare/arcmira-vs-perplexity-search-api.json",
        "title": "Arcmira vs Perplexity Search API",
        "url": "https://www.anchorterminal.com/compare/arcmira-vs-perplexity-search-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/exa-mcp-vs-grep-ai.json",
        "title": "Exa API + MCP vs Grep AI",
        "url": "https://www.anchorterminal.com/compare/exa-mcp-vs-grep-ai"
      },
      {
        "json": "https://www.anchorterminal.com/compare/grep-ai-vs-liner-mcp.json",
        "title": "Grep AI vs Liner Search MCP",
        "url": "https://www.anchorterminal.com/compare/grep-ai-vs-liner-mcp"
      },
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        "json": "https://www.anchorterminal.com/compare/grep-ai-vs-linkup.json",
        "title": "Grep AI vs Linkup",
        "url": "https://www.anchorterminal.com/compare/grep-ai-vs-linkup"
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        "title": "Grep AI vs NewsCatcher",
        "url": "https://www.anchorterminal.com/compare/grep-ai-vs-newscatcher"
      },
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        "json": "https://www.anchorterminal.com/compare/grep-ai-vs-parallel-search-api.json",
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        "url": "https://www.anchorterminal.com/compare/grep-ai-vs-parallel-search-api"
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        "json": "https://www.anchorterminal.com/compare/grep-ai-vs-specstream.json",
        "title": "Grep AI vs SpecStream",
        "url": "https://www.anchorterminal.com/compare/grep-ai-vs-specstream"
      },
      {
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        "title": "Grep AI vs Tavily API + MCP",
        "url": "https://www.anchorterminal.com/compare/grep-ai-vs-tavily-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/grep-ai-vs-tinyfish-search.json",
        "title": "Grep AI vs TinyFish Search",
        "url": "https://www.anchorterminal.com/compare/grep-ai-vs-tinyfish-search"
      },
      {
        "json": "https://www.anchorterminal.com/compare/grep-ai-vs-valyu.json",
        "title": "Grep AI vs Valyu",
        "url": "https://www.anchorterminal.com/compare/grep-ai-vs-valyu"
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      {
        "json": "https://www.anchorterminal.com/compare/grep-ai-vs-you-com-api.json",
        "title": "Grep AI vs You.com APIs",
        "url": "https://www.anchorterminal.com/compare/grep-ai-vs-you-com-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/liner-mcp-vs-perplexity-search-api.json",
        "title": "Liner Search MCP vs Perplexity Search API",
        "url": "https://www.anchorterminal.com/compare/liner-mcp-vs-perplexity-search-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/bing-grounding-vs-grep-ai.json",
        "title": "Grounding with Bing Search vs Grep AI",
        "url": "https://www.anchorterminal.com/compare/bing-grounding-vs-grep-ai"
      },
      {
        "json": "https://www.anchorterminal.com/compare/brave-search-mcp-vs-grep-ai.json",
        "title": "Brave Search API + MCP vs Grep AI",
        "url": "https://www.anchorterminal.com/compare/brave-search-mcp-vs-grep-ai"
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    ],
    "panel": null,
    "scores": [
      {
        "by": 30,
        "edge": "perplexity-search-api",
        "grep-ai": 50,
        "key": "reliability",
        "name": "Reliability",
        "perplexity-search-api": 80,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 6,
        "edge": "perplexity-search-api",
        "grep-ai": 83,
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "perplexity-search-api": 89,
        "weight": 13
      },
      {
        "by": 15,
        "edge": "perplexity-search-api",
        "grep-ai": 70,
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "perplexity-search-api": 85,
        "weight": 13
      },
      {
        "by": 8,
        "edge": "grep-ai",
        "grep-ai": 64,
        "key": "security",
        "name": "Security \u0026 auth",
        "perplexity-search-api": 56,
        "weight": 14
      },
      {
        "by": 15,
        "edge": "grep-ai",
        "grep-ai": 40,
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "perplexity-search-api": 25,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 8,
        "edge": "perplexity-search-api",
        "grep-ai": 74,
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "perplexity-search-api": 82,
        "weight": 7
      },
      {
        "by": 5,
        "edge": "perplexity-search-api",
        "grep-ai": 61,
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "perplexity-search-api": 66,
        "weight": 7
      }
    ],
    "summary": "Perplexity Search API scores 70.2 (BB) on agent readiness against Grep AI's 62.9 (B), and leads in 5 of 7 scored categories. Grep AI leads on security \u0026 auth and payments \u0026 pricing. Both do research search.",
    "tasks": null,
    "tutorials": [],
    "verdicts": {
      "grep-ai": "The public API has a 128-operation OpenAPI document, scoped OAuth and API keys, idempotency keys with documented replay rules and a per-run cost cap. No rate limit is published, the MCP server lists 137 tools, the whole service went down twice in the 90 days to 2 November, and API access starts at the $200 a month Pro plan.",
      "perplexity-search-api": "Raw ranked results with token-capped page text from Perplexity's own index, $5 per 1,000 requests or $1 with Fast Search, an OpenAPI description and a hosted MCP server with read-only annotations. Uptime is not guaranteed, there is no free allowance, keys carry no scopes, and no guidance on untrusted page text was found."
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  "markdown": "Perplexity Search API scores 70.2 (BB) on agent readiness against Grep AI's 62.9 (B), and leads in 5 of 7 scored categories. Grep AI leads on security \u0026 auth and payments \u0026 pricing. Both do research search.\n\n- Grep AI: grade B, 62.9/100, rank #535 of 1510. Markdown https://www.anchorterminal.com/tools/grep-ai.md · JSON https://www.anchorterminal.com/api/v1/tools/grep-ai.json\n- Perplexity Search API: grade BB, 70.2/100, rank #211 of 1510. Markdown https://www.anchorterminal.com/tools/perplexity-search-api.md · JSON https://www.anchorterminal.com/api/v1/tools/perplexity-search-api.json\n- Best web search APIs for AI agents: https://www.anchorterminal.com/best/search/index.md\n- All 326 search comparisons: https://www.anchorterminal.com/compare/search/index.md\n\n## Which one, for what\n\n### Grep AI (B)\n\nGood for: Agents that hand off a long research or due-diligence job and want a cited report or structured fields back, including business verification and sanctions screening through built-in agents.\n\nAhead on:\n- Security \u0026 auth, 64 against 56\n- Payments \u0026 pricing, 40 against 25\n\nWatch for: No rate limit numbers in the reviewed documentation, and no published SLA. Full outages on 4 September (24 minutes) and 30 October (7 minutes)\n\n### Perplexity Search API (BB)\n\nGood for: Agents on any model that need raw ranked sources with extracted text at a low per-request price, and teams that want cited answers from the same key through the Agent API.\n\nAhead on:\n- Reliability, 80 against 50\n- Schema \u0026 documentation, 89 against 83\n- Agent ergonomics, 85 against 70\n- Maintenance \u0026 community, 82 against 74\n- Transparency \u0026 trust, 66 against 61\n\nAlso in its favour:\n- Agent-ready, a grade of BB or better\n- Runs on your own machine\n\nWatch for: The FAQ says uptime and recovery time are not guaranteed, and the terms carry no SLA\n\n\n## Why the edge\n\n### Reliability: Perplexity Search API +30\n\n- Grep AI (50): Graded on the hosted API and MCP server. status.grep.ai runs on incident.io, and since 30 October 2026 it has an API component beside Website (20). Two incidents in the 90 days from 4 August, read from the page's feed and incident pages. On 4 September \"Grep.ai currently unavailable\" said Grep.ai was \"experiencing an outage\" for 24 minutes, and on 30 October the Website and API components were both in full outage from 17:17 to 17:24 UTC after an infrastructure provider's failure. Each is a full outage of the whole service, which this run reads as a major however short, so two majors (5). The 8 October check read the September outage as minor by its length. No rate limit numbers found in the docs or the OpenAPI document (0). 429 `rate_limited` carries `Retry-After`, and run creation takes an `Idempotency-Key` with documented replay rules (15). The FAQ mentions SLA guarantees for enterprise customers, and no SLA is published (0). API v2 and the MCP server carry no beta label. The SDKs are at 0.2.1 per the 8 October check, and PyPI classified the Python one as Alpha then (10).\n- Perplexity Search API (80): Graded on the hosted lines, for `POST /search` and the hosted MCP server. status.perplexity.com, on incident.io since 10 September 2026, has an API component with an RSS feed and a JSON summary. There is no separate Search component (20). In the 90 days from 8 August the feed lists 'Investigating API issue' on 13 August, resolved with no detail, a usage-based billing issue on 3 September, and on 9 October elevated errors on the website, app and Computer, where the API 'remained operational throughout'. Minor only, with the caveat that history before the migration may be incomplete (20). The Search API is limited to 50 query units a second with a burst of 50 on every tier, and the other APIs publish QPS and token limits per tier (15). 429 carries Retry-After and an `error.type`, the SDKs retry 429 and 5xx twice honouring Retry-After, the Search best-practices page shows backoff, and failed or rate-limited searches are not billed. Searches have no side effects (15). The FAQ says Perplexity does not guarantee uptime, failure frequency or recovery time, and the terms carry no SLA (0). No beta label on the Search API, launched on 25 September 2025 (10). 20 + 20 + 15 + 15 + 0 + 10 = 80.\n\n### Agent ergonomics: Perplexity Search API +15\n\n- Grep AI (70): The MCP server card lists 137 tools, 57 of them deprecated aliases, with no documented toolsets. Reports default to plain Markdown and large files come back as signed URLs, so some credit back (8). Cursor pagination with `limit` on runs, timelines and transactions, and server-side filters on the skill and tool lists (18). One error envelope with stable codes and a `request_id`, and 402 for credits kept apart from 429 for rate (20). `Idempotency-Key` with body-hash matching and a 24-hour replay window. The server card shows no readOnlyHint or destructiveHint annotations, and the live tool list wasn't read (12). Only `question` is required and `effort` defaults to low. TypeScript and Python SDKs exist, though one docs page still calls the release pending and names a PyPI package that returns 404 (12).\n- Perplexity Search API (85): `max_results` 1 to 20, `max_tokens` and `max_tokens_per_page` cap the extracted text, and results are title, url, snippet and two dates. The MCP server has four tools (23 of 25). Domain, language, recency, publication and update date filters and `country`, with up to five queries in one request. No pagination or offset (16 of 20). 429 bodies name the limit hit, the SDKs map status codes to typed errors, and 402 marks an empty balance. Search-specific error bodies beyond 422 validation are not documented (13 of 20). Searches only read, failed and rate-limited requests are not billed, and the MCP server sets readOnlyHint true, destructiveHint false and idempotentHint false on every tool (18 of 20). Only `query` is required. Official Python and TypeScript SDKs, a CLI and a Python Search SDK (15). 23 + 16 + 13 + 18 + 15 = 85.\n\n### Payments \u0026 pricing: Grep AI +15\n\n- Grep AI (40): No machine payment protocol on the live endpoints. The changelog of 8 May 2026 announces x402 and MPP, and the gateway answered 503 `gateway_disabled` on 8 October and again on 2 November 2026 (0). Plan and credit prices are public, but only the medium tier's credit cost is published and the page and its Markdown twin disagree on credits per dollar (10). 100 free trial credits on the pricing page, 500 Wallet credits for new personal accounts in the 4 October changelog entry, and 500 for an owner's first agent through AgentID. The pricing page doesn't say whether a card is needed, and its table marks the trial without API access (15). AgentID sign-in is documented as needing no human account, but it depends on an AgentMail inbox and a browser step, and we didn't run it (15).\n- Perplexity Search API (25): No x402, MPP or L402 in the docs, pricing page, OpenAPI or llms.txt (0). $5 per 1,000 successful requests, $1 with Fast Search, published without a login, with failed and rate-limited requests not billed (20). Usage is prepaid with a card on the billing page, and no free allowance was found. The console playground needs no key but is a page for a person, not an API allowance (0). A person signs up in the console. The Stripe Projects route provisions a project, key and credits from a terminal, but needs a person's Stripe account with a payment method and a $10 minimum purchase (5 of 20, as on the Decisions API listing). 0 + 20 + 0 + 5 = 25.\n\n### Security \u0026 auth: Grep AI +8\n\n- Grep AI (64): OAuth through Descope with five scopes, and API keys that can be created with a subset of scopes, listed and revoked through the API (30). Read scopes, `validate_only` and `dry_run` on agent changes, a per-run `max_cost_usd` and versioned restores. No confirmation step for deletes or for making a run public (14). Reports are built from untrusted web pages. The docs describe an SSRF-guarded fetch for context files, and no prompt-injection guidance for callers was found (3). Each run has a timeline of execution events, and billing transactions and usage are readable through the API (12). The footer claims SOC 2 Type II with no report linked, and its \"Security \u0026 trust\" link opens a performance benchmarks page. security.txt returns 404, and no disclosure policy or bug bounty was found, so this is a bare SOC 2 claim, which this run reads as 5 (5). Webhooks are signed with the API key itself.\n- Perplexity Search API (56): Project API keys, shown once, revocable, and generated and revoked through two documented endpoints with a rotation guide. No per-key scopes or spending limits were found. The hosted MCP server also takes Sign in with Perplexity (OAuth). Keys go in the Authorization header only (22 of 30, as on the Decisions API listing). Search only reads, and MCP clients can disable tools, but any key reaches every API on the account, including the Agent API's sandbox and MCP tools (8 of 20). Snippets are third-party page text, and no guidance on treating them as untrusted was found in the docs, the MCP server or its SECURITY.md (0 of 15). Responses carry a request `id`, and the console shows usage by key. The Audit API covers enterprise organisations' web app events with its own keys, not API calls (8 of 15). security.txt valid until 31 December 2027 linking a security page, a SOC 2 Type II report, a 2025 HIPAA gap assessment and a CAIQlite listed on the trust centre, and a SECURITY.md on the MCP server that takes private reports through GitHub advisories or security@perplexity.ai. The trust centre is drawn by script and wasn't read (18 of 20). 22 + 8 + 0 + 8 + 18 = 56.\n\n### Maintenance \u0026 community: Perplexity Search API +8\n\n- Grep AI (74): The changelog's newest entry is v3.71 on 20 October 2026, 13 days before this check (30). 14 dated changelog entries since 4 August, from v3.1.1 on 7 August to v3.71 on 20 October (20). Closed service with a public changelog and support at support@parcha.ai. We didn't test whether support answers (8). Current SDKs in two languages per the 8 October check (@parcha/agentrun and parcha-agentrun 0.2.1, 30 September), with docs that lag them. Not found in the official MCP registry (12). The skills repository runs a test workflow and hasn't changed since 30 September. The SDK repositories named in the package metadata asked for credentials, so their CI wasn't read (4). The 8 October PyPI reading came from a path pypi.org's robots.txt disallows and is struck; npm and PyPI didn't answer on 2 November.\n- Perplexity Search API (82): Read as a closed service with official SDKs and an open-source MCP server. perplexityai 0.46.1 on PyPI on 23 October 2026 and the MCP server's last commit on 21 October, with changelog entries into November 2026 (30). In the 90 days from 8 August, perplexityai 0.43.7 to 0.46.1 (six releases from 2 October), MCP server 1.2.1 (27 August) and 1.3.0 (25 September, Fast Search on perplexity_search), and Fast Search itself in September (20). A changelog with several entries a month, a community forum with a bug-report category, a GitHub discussion repository and api@perplexity.ai. MCP issue reply times weren't read (10 of 15). The MCP server is in the official registry under the domain-verified ai.perplexity namespace, and the Python and TypeScript SDKs are current (15). The MCP repository runs tests in CI and validates its plugin manifests. Its 1.4.0, prepared on 16 October, is not on npm, which still serves 1.3.0, and the registry's latest entry is 1.2.1 of 27 August (7 of 10). 30 + 20 + 10 + 15 + 7 = 82.\n\n### Schema \u0026 documentation: Perplexity Search API +6\n\n- Grep AI (83): Public OpenAPI document at api.grep.ai/api/v2/openapi.json, now 128 operations on 98 paths and 159 schemas (25). llms.txt and a Markdown twin of each developer page (10). Most operations carry a description, and the `effort` field says what each tier returns and how long it takes. 19 operations have none, and the MCP server card gives each of its 137 tools one line. The MCP input schemas need OAuth and weren't read (12). 75 enums, numeric bounds and `additionalProperties: false` on the run request (12). Curl examples and an 11-code error registry in the docs, but the OpenAPI document has no examples and documents only 200 and 422 responses (9). The path is versioned, v1 and 42 v2 operations are marked deprecated, and the dated changelog now runs to v3.71 on 20 October 2026, with 14 entries since 4 August (15).\n- Perplexity Search API (89): OpenAPI 3.1.0 at docs.perplexity.ai/openapi.json describes `POST /search` with typed request and response schemas, listed in llms.txt (25). llms.txt indexes every page, each with a Markdown twin (10). The overview says what a result holds, that snippets can be empty, when to use the Search API instead of the Agent API, and that it takes queries not URLs and does not re-fetch pages (19 of 20). `search_type` is an enum, `max_results`, `max_tokens` and `max_tokens_per_page` carry minimum and maximum, country and language codes carry lengths, and `query` is a string or an array. The recency filter is an enum in the docs, and date filters are `MM/DD/YYYY` strings (14 of 15). Python, TypeScript and cURL examples with a recorded response. The spec documents only 200 and 422 for `/search`, and status codes are listed on the SDK error-handling page and the rate-limit page rather than for Search (11 of 15). A public changelog with several entries a month, dated by month only, and an unversioned `/search` path (10 of 15). 25 + 10 + 19 + 14 + 11 + 10 = 89.\n\n## Score by category\n\n| Category | Weight | Grep AI | Perplexity Search API | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 50 | 80 | Perplexity Search API +30 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 83 | 89 | Perplexity Search API +6 |\n| Agent ergonomics | 13% (16.2 this run) | 70 | 85 | Perplexity Search API +15 |\n| Security \u0026 auth | 14% (17.5 this run) | 64 | 56 | Grep AI +8 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 40 | 25 | Grep AI +15 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 74 | 82 | Perplexity Search API +8 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 61 | 66 | Perplexity Search API +5 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **62.9 · B** | **70.2 · BB** | |\n\n## Facts side by side\n\n| Fact | Grep AI | Perplexity Search API |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Parcha Labs, Inc. | Perplexity |\n| Hosted endpoint | `https://api.grep.ai/api/v2/runs` | `https://api.perplexity.ai/mcp` |\n| Transports | HTTP, Streamable HTTP | Streamable HTTP, stdio |\n| Auth | OAuth or key | OAuth or key |\n| Pricing | Freemium | Pay per use |\n| x402 | no | no |\n| Licence | Proprietary service under Parcha Labs' terms of service. The grep-research-skills package on npm is MIT. The @parcha/agentrun and parcha-agentrun SDK packages state no licence in their registry metadata | Proprietary service under the Perplexity API Terms of Service. The MCP server is MIT and the official SDKs Apache-2.0 |\n| Tools exposed | 137 | 4 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| MCP registry | not listed | `ai.perplexity/mcp-server` |\n| Last release | 2026-10-20 | 2026-10-23 |\n| Terms last updated | 2026-03-20 | couldn't be read |\n| Privacy policy last updated | 2026-09-21 | couldn't be read |\n| Customer content may train models | not found in the text | couldn't be read |\n| Terms restrict automated access | yes | couldn't be read |\n| Terms restrict benchmarking | not found in the text | couldn't be read |\n| Terms or service can change without notice | not found in the text | couldn't be read |\n| Arbitration or class-action waiver | not found in the text | couldn't be read |\n| Popularity | 334 npm/wk, 52 PyPI/wk | none |\n| Agent reviews | 3/5 (4) | none |\n\n## How the scores have moved\n\n### Grep AI\n\n- -1.7 on 2 November 2026: reliability, product, correction\n- +0.2 on 27 October 2026: new evidence\n\n### Perplexity Search API\n\nNo score change since it was listed.\n\n## Verdicts\n\n**Grep AI.** The public API has a 128-operation OpenAPI document, scoped OAuth and API keys, idempotency keys with documented replay rules and a per-run cost cap. No rate limit is published, the MCP server lists 137 tools, the whole service went down twice in the 90 days to 2 November, and API access starts at the $200 a month Pro plan.\n\n**Perplexity Search API.** Raw ranked results with token-capped page text from Perplexity's own index, $5 per 1,000 requests or $1 with Fast Search, an OpenAPI description and a hosted MCP server with read-only annotations. Uptime is not guaranteed, there is no free allowance, keys carry no scopes, and no guidance on untrusted page text was found.\n\n## Before you call either\n\n### Grep AI\n\n1. Send a fresh `Idempotency-Key` with every POST /api/v2/runs. After a timeout, poll the returned run ID and do not post again\n2. Set `effort` and `max_cost_usd` on every run. The floor is $0.50 for low, $2.50 for medium and build, $5.00 for high\n3. Call GET /api/v2/quota/check before a run. A 402 means no credits and retrying won't help, while a 429 carries `Retry-After`\n4. Use the `run_*`, `agent_*` and `swarm_*` MCP tools at https://api.grep.ai/mcp. The `research_*`, `expert_*` and `campaign_*` names are deprecated aliases\n5. Treat report text and cited sources as untrusted web content, and verify one load-bearing claim against a primary source\n\n### Perplexity Search API\n\n1. Set `max_tokens_per_page` and `max_tokens` before calling; extracted text otherwise fills the context, and the price does not change with size\n2. Skip results with an empty `snippet` and dedupe by `url` when sending a `query` array; each query costs one rate-limit unit\n3. Use `search_type: \"fast\"` for $1 per 1,000 when latency and cost matter more than depth\n4. On 429 wait for Retry-After, then back off; on 402 stop and ask the user to add credits\n5. Use the Search API for sources and the Agent API's web_search tool for a written answer with citations\n\n## Questions\n\n### Which is better for AI agents, Grep AI or Perplexity Search API?\n\nPerplexity Search API scores 70.2 (BB) on agent readiness against Grep AI's 62.9 (B), and leads in 5 of 7 scored categories. Grep AI leads on security \u0026 auth and payments \u0026 pricing.\n\n### Do Grep AI and Perplexity Search API need an API key?\n\nBoth take an API key or an OAuth sign-in.\n\n### Can an agent call Grep AI and Perplexity Search API without installing anything?\n\nYes. Grep AI has a hosted endpoint at https://api.grep.ai/api/v2/runs and Perplexity Search API at https://api.perplexity.ai/mcp.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/grep-ai-vs-perplexity-search-api.json, and with the fewest tokens: https://www.anchorterminal.com/compare/grep-ai-vs-perplexity-search-api.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"grep-ai\", \"b\": \"perplexity-search-api\"}`. From a terminal: `anchor compare grep-ai perplexity-search-api`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/grep-ai.json and https://www.anchorterminal.com/api/v1/tools/perplexity-search-api.json\n\n## Other comparisons with Grep AI or Perplexity Search API\n\n- [Web Search Tool on Amazon Bedrock AgentCore vs Grep AI](https://www.anchorterminal.com/compare/agentcore-web-search-vs-grep-ai.md)\n- [Web Search Tool on Amazon Bedrock AgentCore vs Perplexity Search API](https://www.anchorterminal.com/compare/agentcore-web-search-vs-perplexity-search-api.md)\n- [Grounding with Bing Search vs Perplexity Search API](https://www.anchorterminal.com/compare/bing-grounding-vs-perplexity-search-api.md)\n- [Brave Search API + MCP vs Perplexity Search API](https://www.anchorterminal.com/compare/brave-search-mcp-vs-perplexity-search-api.md)\n- [Cloudflare Web Search API vs Grep AI](https://www.anchorterminal.com/compare/cloudflare-web-search-vs-grep-ai.md)\n- [Cloudflare Web Search API vs Perplexity Search API](https://www.anchorterminal.com/compare/cloudflare-web-search-vs-perplexity-search-api.md)\n- [DeepSeek Search and Fetch API vs Grep AI](https://www.anchorterminal.com/compare/deepseek-search-api-vs-grep-ai.md)\n- [DeepSeek Search and Fetch API vs Perplexity Search API](https://www.anchorterminal.com/compare/deepseek-search-api-vs-perplexity-search-api.md)\n- [Exa API + MCP vs Perplexity Search API](https://www.anchorterminal.com/compare/exa-mcp-vs-perplexity-search-api.md)\n- [Firecrawl MCP vs Grep AI](https://www.anchorterminal.com/compare/firecrawl-mcp-vs-grep-ai.md)\n- [Firecrawl MCP vs Perplexity Search API](https://www.anchorterminal.com/compare/firecrawl-mcp-vs-perplexity-search-api.md)\n- [Grep AI vs Kagi Search API](https://www.anchorterminal.com/compare/grep-ai-vs-kagi-search.md)\n- [Grep AI vs Mojeek Web Search API](https://www.anchorterminal.com/compare/grep-ai-vs-mojeek.md)\n- [Grep AI vs SearchAPI.io](https://www.anchorterminal.com/compare/grep-ai-vs-searchapi-io.md)\n- [Grep AI vs SerpApi](https://www.anchorterminal.com/compare/grep-ai-vs-serpapi.md)\n- [Grep AI vs Serper](https://www.anchorterminal.com/compare/grep-ai-vs-serper.md)\n- [Grep AI vs SerpKite](https://www.anchorterminal.com/compare/grep-ai-vs-serpkite.md)\n- [Kagi Search API vs Perplexity Search API](https://www.anchorterminal.com/compare/kagi-search-vs-perplexity-search-api.md)\n- [Linkup vs Perplexity Search API](https://www.anchorterminal.com/compare/linkup-vs-perplexity-search-api.md)\n- [Mojeek Web Search API vs Perplexity Search API](https://www.anchorterminal.com/compare/mojeek-vs-perplexity-search-api.md)\n- [NewsCatcher vs Perplexity Search API](https://www.anchorterminal.com/compare/newscatcher-vs-perplexity-search-api.md)\n- [Parallel Search and Task APIs vs Perplexity Search API](https://www.anchorterminal.com/compare/parallel-search-api-vs-perplexity-search-api.md)\n- [Perplexity Search API vs SearchAPI.io](https://www.anchorterminal.com/compare/perplexity-search-api-vs-searchapi-io.md)\n- [Perplexity Search API vs SerpApi](https://www.anchorterminal.com/compare/perplexity-search-api-vs-serpapi.md)\n- [Perplexity Search API vs Serper](https://www.anchorterminal.com/compare/perplexity-search-api-vs-serper.md)\n- [Perplexity Search API vs SERPHouse](https://www.anchorterminal.com/compare/perplexity-search-api-vs-serphouse.md)\n- [Perplexity Search API vs SerpKite](https://www.anchorterminal.com/compare/perplexity-search-api-vs-serpkite.md)\n- [Perplexity Search API vs SpecStream](https://www.anchorterminal.com/compare/perplexity-search-api-vs-specstream.md)\n- [Perplexity Search API vs Tavily API + MCP](https://www.anchorterminal.com/compare/perplexity-search-api-vs-tavily-mcp.md)\n- [Perplexity Search API vs TinyFish Search](https://www.anchorterminal.com/compare/perplexity-search-api-vs-tinyfish-search.md)\n- [Perplexity Search API vs Valyu](https://www.anchorterminal.com/compare/perplexity-search-api-vs-valyu.md)\n- [Perplexity Search API vs You.com APIs](https://www.anchorterminal.com/compare/perplexity-search-api-vs-you-com-api.md)\n- [Arcmira vs Grep AI](https://www.anchorterminal.com/compare/arcmira-vs-grep-ai.md)\n- [Arcmira vs Perplexity Search API](https://www.anchorterminal.com/compare/arcmira-vs-perplexity-search-api.md)\n- [Exa API + MCP vs Grep AI](https://www.anchorterminal.com/compare/exa-mcp-vs-grep-ai.md)\n- [Grep AI vs Liner Search MCP](https://www.anchorterminal.com/compare/grep-ai-vs-liner-mcp.md)\n- [Grep AI vs Linkup](https://www.anchorterminal.com/compare/grep-ai-vs-linkup.md)\n- [Grep AI vs NewsCatcher](https://www.anchorterminal.com/compare/grep-ai-vs-newscatcher.md)\n- [Grep AI vs Parallel Search and Task APIs](https://www.anchorterminal.com/compare/grep-ai-vs-parallel-search-api.md)\n- [Grep AI vs SpecStream](https://www.anchorterminal.com/compare/grep-ai-vs-specstream.md)\n- [Grep AI vs Tavily API + MCP](https://www.anchorterminal.com/compare/grep-ai-vs-tavily-mcp.md)\n- [Grep AI vs TinyFish Search](https://www.anchorterminal.com/compare/grep-ai-vs-tinyfish-search.md)\n- [Grep AI vs Valyu](https://www.anchorterminal.com/compare/grep-ai-vs-valyu.md)\n- [Grep AI vs You.com APIs](https://www.anchorterminal.com/compare/grep-ai-vs-you-com-api.md)\n- [Liner Search MCP vs Perplexity Search API](https://www.anchorterminal.com/compare/liner-mcp-vs-perplexity-search-api.md)\n- [Grounding with Bing Search vs Grep AI](https://www.anchorterminal.com/compare/bing-grounding-vs-grep-ai.md)\n- [Brave Search API + MCP vs Grep AI](https://www.anchorterminal.com/compare/brave-search-mcp-vs-grep-ai.md)\n",
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