{
  "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",
      "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. 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 2026-10-08).",
      "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 and POST requests to https://api.grep.ai/mpp/v1/api returned 503 `gateway_disabled` on 8 October 2026, and the grep-research-skills README says the wallet path returns once the gateway is generally available (checked 2026-10-08).",
        "endpoints": []
      },
      "toolCount": 82,
      "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": "2026-09-30",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 64.4,
        "grade": "B",
        "agentReady": false,
        "rank": 252,
        "ranked": true,
        "rankOf": 629,
        "categoryRank": 9,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 70,
          "maintenance": 74,
          "payments": 40,
          "reliability": 60,
          "schema": 80,
          "security": 65,
          "transparency": 59
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-08"
        },
        "negative": 0,
        "verdict": "The public API has a 126-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 82 tools, and the pricing page limits API access to the $200 a month Pro plan and above.",
        "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 126 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"
        ],
        "weaknesses": [
          "No rate limit numbers in the reviewed documentation, and no published SLA",
          "The MCP server card lists 82 tools, 31 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 8 October 2026",
          "No security.txt, trust page, subprocessor list or retention period found. SOC 2 Type II appears only as a footer and FAQ claim"
        ],
        "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_*` and `agent_*` MCP tools. The `research_*` and `expert_*` names are deprecated aliases of the same calls",
          "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": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 64.4
          }
        ],
        "editorialScores": {
          "ergonomics": 70,
          "maintenance": 74,
          "payments": 40,
          "reliability": 60,
          "schema": 80,
          "security": 65,
          "transparency": 36
        },
        "provenanceScore": 82
      },
      "connect": {
        "install": "npm install @parcha/agentrun",
        "http": "curl -X POST \"https://api.grep.ai/api/v2/research\" \\\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/api/v2/mcp\nclaude mcp login grep",
        "config": {
          "mcpServers": {
            "grep": {
              "url": "https://api.grep.ai/api/v2/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": 82
      },
      "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": "2026-10-08T19:08:48.328236956Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 313,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 379,
          "p95ms24h": 509,
          "samples24h": 42,
          "samples30d": 42,
          "days": [
            {
              "date": "2026-10-08",
              "probes": 42,
              "ok": 42
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.grep.ai",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-08T19:06:41.247636962Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "Parcha-ai/grepai-skills",
            "version": "v0.2.0",
            "released": "2026-08-04",
            "seenAt": "2026-10-08T16:15:07.589068505Z"
          },
          {
            "registry": "npm",
            "name": "@parcha/agentrun",
            "version": "0.2.1",
            "seenAt": "2026-10-08T16:15:03.929041874Z"
          },
          {
            "registry": "npm",
            "name": "grep-research-skills",
            "version": "0.2.0",
            "seenAt": "2026-10-08T16:15:07.371903924Z"
          },
          {
            "registry": "pypi",
            "name": "parcha-agentrun",
            "version": "0.2.1",
            "released": "2026-09-30",
            "seenAt": "2026-10-08T16:15:07.178365237Z"
          }
        ],
        "githubStars": 2,
        "npmWeekly": 334,
        "pypiWeekly": 52,
        "securityTxt": {
          "url": "https://grep.ai/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-08T15:38:56.474115574Z"
        },
        "pages": [
          {
            "url": "https://grep.ai/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-08T18:20:43.809396033Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "5f4c7902b1e3"
          },
          {
            "url": "https://grep.ai/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-08T18:20:46.272067131Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "a9ffcdfc713c"
          },
          {
            "url": "https://grep.ai/privacy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-08T18:20:48.076387468Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "68d0ef896769"
          },
          {
            "url": "https://grep.ai/terms",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-08T18:20:50.381060662Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "5c21afb05a2d"
          }
        ],
        "updatedAt": "2026-10-08T19:08:48.328236956Z"
      }
    },
    "answer": "Tavily API + MCP scores 76.8 (BB) on agent readiness against Grep AI's 64.4 (B), and leads in 6 of 7 scored categories. Grep AI leads on security \u0026 auth.",
    "b": {
      "slug": "tavily-mcp",
      "name": "Tavily API + MCP",
      "vendor": "Tavily",
      "vendorUrl": "https://www.tavily.com",
      "kind": "mcp",
      "category": "search",
      "summary": "Tavily's REST API for web search, URL extraction, site mapping, crawling and cited research reports, with the official MCP server hosted at mcp.tavily.com or run locally from npm.",
      "url": "https://www.anchorterminal.com/tools/tavily-mcp",
      "markdownUrl": "https://www.anchorterminal.com/tools/tavily-mcp.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/tavily-mcp.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/tavily-mcp.json",
      "repo": "https://github.com/tavily-ai/tavily-mcp",
      "license": "MIT",
      "transports": [
        "stdio",
        "streamable-http",
        "http"
      ],
      "remoteUrl": "https://mcp.tavily.com/mcp/?tavilyApiKey=\u003ckey\u003e",
      "packages": [
        {
          "registry": "npm",
          "name": "@tavily/core"
        },
        {
          "registry": "pypi",
          "name": "tavily-python"
        },
        {
          "registry": "npm",
          "name": "tavily-mcp"
        }
      ],
      "auth": "mixed",
      "authNotes": "API key as `Authorization: Bearer tvly-...`. Development keys and production keys have different rate limits, and production keys need a paid plan or pay as you go. The `X-Tavily-Access-Mode: keyless` header gives rate-limited search and extract with no key. x402.tavily.com takes a `PAYMENT-SIGNATURE` header instead. MCP server: API key in the URL query (?tavilyApiKey=) or Authorization header; OAuth flow also supported on the hosted server (uses an mcp_auth_default key from the dashboard).",
      "pricing": "freemium",
      "pricingNotes": "Free 1,000 credits a month, no card. Project $30 a month (4,000 credits), Bootstrap $100 (15,000), Startup $220 (38,000), Growth $500 (100,000), pay as you go $0.008 a credit. Basic search 1 credit, advanced 2, extract 1 per 5 URLs (advanced 2), map 1 per 10 pages, crawl is map plus extract, research 4 to 250 credits by model. Failed extracts and maps aren't charged (https://www.tavily.com/pricing).",
      "priceSummary": "$7.50 / 1k req",
      "where": "both",
      "x402": {
        "level": "partial",
        "evidence": "Official x402 endpoint at x402.tavily.com sells POST /search in advanced mode only, $0.01 in USDC on Base. An unpaid request returned 402 and /.well-known/pricing listed the price on 2026-09-30. Extract, map, crawl and research aren't sold over x402 (https://docs.tavily.com/documentation/machine-payments/x402.md)",
        "endpoints": [
          {
            "url": "https://x402.tavily.com/search",
            "priceUsd": 0.01,
            "network": "eip155:8453"
          }
        ]
      },
      "toolCount": 5,
      "popularity": {
        "githubStars": 2400,
        "npmWeekly": 451969,
        "pypiWeekly": 1589963,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://docs.tavily.com",
      "llmsTxt": "https://docs.tavily.com/llms.txt",
      "openapi": "https://docs.tavily.com/documentation/api-reference/openapi.json",
      "registryName": "io.github.tavily-ai/tavily-mcp",
      "capabilities": [
        "web.search",
        "web.extract",
        "web.crawl",
        "web.fetch",
        "search.answer",
        "search.research",
        "search.news",
        "search.images"
      ],
      "tags": [
        "official",
        "hosted",
        "local",
        "open-source",
        "freemium",
        "llms-txt",
        "no-card",
        "free-tier",
        "x402",
        "openapi",
        "python",
        "typescript",
        "async-jobs",
        "enterprise",
        "mcp"
      ],
      "lastRelease": "2026-09-18",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 76.8,
        "grade": "BB",
        "agentReady": true,
        "rank": 24,
        "ranked": true,
        "rankOf": 629,
        "categoryRank": 1,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 81,
          "maintenance": 85,
          "payments": 75,
          "reliability": 90,
          "schema": 89,
          "security": 52,
          "transparency": 60
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-04"
        },
        "negative": 0,
        "verdict": "Keyless search and extract, plus a free 1,000 credits a month with no card. x402 covers advanced search only, not extract, map, crawl or research.",
        "bestFor": "An agent that needs search plus page text in one call and has no account yet.",
        "strengths": [
          "Keyless search and extract, plus a free 1,000 credits a month with no card",
          "x402 endpoint for advanced search at $0.01 in USDC on Base",
          "Public OpenAPI, llms.txt and an error table that tells plan limits (432) from pay-as-you-go limits (433)",
          "429 carries Retry-After, with limits published per key type and endpoint",
          "Logs API filters calls by key and endpoint"
        ],
        "weaknesses": [
          "x402 covers advanced search only, not extract, map, crawl or research",
          "Hosted MCP docs lead with `?tavilyApiKey=` in the URL query string",
          "No readOnlyHint or destructiveHint on the MCP tools, and the npm server (0.2.22, 5 August 2026) trails the GitHub source",
          "Privacy policy lets query data improve future responses unless a contract says otherwise, with no zero-retention option found",
          "SLAs named only for the custom Enterprise plan, and no security.txt or deprecation policy found"
        ],
        "agentNotes": [
          "Try `X-Tavily-Access-Mode: keyless` first for search and extract. Over MCP, the keyless cap arrives as plain text without `isError`, so read the text before treating it as results",
          "Send the key in `Authorization: Bearer`, not `?tavilyApiKey=` in the MCP URL",
          "On 429, wait for `Retry-After`. A 432 or 433 means a spend limit, and retrying won't help",
          "Run /map before /crawl to bound the crawl, since crawl is billed as map plus extract",
          "Research is async and runs 4 to 250 credits. Create the task, then poll /research/{request_id}"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 8,
        "avgRating": 3.6,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "BB",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 76.8
          }
        ],
        "editorialScores": {
          "ergonomics": 81,
          "maintenance": 85,
          "payments": 75,
          "reliability": 90,
          "schema": 89,
          "security": 52,
          "transparency": 47
        },
        "provenanceScore": 73
      },
      "connect": {
        "http": "curl -X POST https://api.tavily.com/search \\\n  -H \"Authorization: Bearer $TAVILY_API_KEY\" -H \"Content-Type: application/json\" \\\n  -d '{\"query\":\"latest AI news\",\"max_results\":5}'",
        "claudeCode": "claude mcp add --transport http tavily https://mcp.tavily.com/mcp/ --header \"Authorization: Bearer ${TAVILY_API_KEY}\"",
        "config": {
          "mcpServers": {
            "tavily": {
              "headers": {
                "Authorization": "Bearer ${TAVILY_API_KEY}"
              },
              "url": "https://mcp.tavily.com/mcp/"
            }
          }
        },
        "x402": "curl -i -X POST https://x402.tavily.com/search -H 'content-type: application/json' -d '{\"query\":\"Who is Leo Messi?\"}'\n# HTTP/2 402, PAYMENT-REQUIRED header carries the terms (10000 base units of USDC on eip155:8453)\n# retry with PAYMENT-SIGNATURE: \u003cbase64 signed authorization\u003e"
      },
      "letme": {
        "capability": "https://letme.dev/web.search",
        "tool": "https://letme.dev/tavily-mcp"
      },
      "area": "web-data",
      "unitPrices": [
        {
          "item": "Basic search on Project plan",
          "unit": "1k-requests",
          "usd": 7.5,
          "note": "1 credit a search at $0.0075 a credit"
        },
        {
          "item": "Project plan",
          "unit": "month",
          "usd": 30,
          "note": "4,000 credits"
        },
        {
          "item": "Bootstrap plan",
          "unit": "month",
          "usd": 100,
          "note": "15,000 credits"
        },
        {
          "item": "Credit, pay as you go",
          "unit": "credit",
          "usd": 0.008,
          "note": "basic search 1 credit, advanced 2"
        }
      ],
      "provenance": {
        "legalEntity": "AlphaAI Technologies Inc. dba Tavily",
        "domain": "tavily.com",
        "domainRegistered": "2023-04-13",
        "endpointOnVendorDomain": true,
        "terms": "https://www.tavily.com/terms",
        "privacy": "https://www.tavily.com/privacy",
        "statusPage": "https://status.tavily.com",
        "changelog": "https://docs.tavily.com/changelog",
        "securityTxt": "none",
        "checked": "2026-10-04",
        "score": 73
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/tavily-mcp.json",
      "live": {
        "slug": "tavily-mcp",
        "probe": {
          "target": "https://mcp.tavily.com/mcp/?tavilyApiKey=\u003ckey\u003e",
          "method": "mcp-initialize",
          "lastAt": "2026-10-08T19:08:59.996765941Z",
          "lastOk": true,
          "lastStatus": 200,
          "lastMs": 310,
          "lastNote": "initialize answered",
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 259,
          "p95ms24h": 334,
          "samples24h": 272,
          "samples30d": 3089,
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                    "items": {
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                    "default": false,
                    "description": "Include a list of query-related images in the response",
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                    "default": false,
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                    "default": 5,
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                    "type": "integer"
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                  "query": {
                    "description": "Search query",
                    "type": "string"
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                  "search_depth": {
                    "default": "basic",
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                    "enum": [
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                    "default": "basic",
                    "description": "Use 'advanced' for LinkedIn, protected sites, or tables/embedded content",
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                      "advanced"
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                    "type": "string"
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                    "enum": [
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                  "include_favicon": {
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                    "description": "Include favicon URLs",
                    "type": "boolean"
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                  "include_images": {
                    "default": false,
                    "description": "Include images from pages",
                    "type": "boolean"
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                  "query": {
                    "default": "",
                    "description": "Query to rerank content chunks by relevance",
                    "type": "string"
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                  "urls": {
                    "description": "List of URLs to extract content from",
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            {
              "name": "tavily_crawl",
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              "description": "Crawl a website starting from a URL. Extracts content from pages with configurable depth and breadth.",
              "inputSchema": {
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                "properties": {
                  "allow_external": {
                    "default": true,
                    "description": "Whether to return external links in the final response",
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                  "extract_depth": {
                    "default": "basic",
                    "description": "Advanced extraction retrieves more data, including tables and embedded content, with higher success but may increase latency",
                    "enum": [
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                      "advanced"
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                    "type": "string"
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                    "default": "markdown",
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                    "enum": [
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                  "include_favicon": {
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                    "type": "boolean"
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                  "instructions": {
                    "default": "",
                    "description": "Natural language instructions for the crawler. Instructions specify which types of pages the crawler should return.",
                    "type": "string"
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                  "limit": {
                    "default": 50,
                    "description": "Total number of links the crawler will process before stopping",
                    "minimum": 1,
                    "type": "integer"
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                  "max_breadth": {
                    "default": 20,
                    "description": "Max number of links to follow per level of the tree (i.e., per page)",
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                    "type": "integer"
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                  "max_depth": {
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                    "description": "Max depth of the crawl. Defines how far from the base URL the crawler can explore.",
                    "minimum": 1,
                    "type": "integer"
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                  "select_domains": {
                    "default": [],
                    "description": "Regex patterns to restrict crawling to specific domains or subdomains (e.g., ^docs\\.example\\.com$)",
                    "items": {
                      "type": "string"
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                  "select_paths": {
                    "default": [],
                    "description": "Regex patterns to select only URLs with specific path patterns (e.g., /docs/.*, /api/v1.*)",
                    "items": {
                      "type": "string"
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                    "type": "array"
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                  "url": {
                    "description": "The root URL to begin the crawl",
                    "type": "string"
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                "required": [
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                "type": "object"
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              "outputSchema": {
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                "type": "object"
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                "idempotentHint": false,
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              "description": "Map a website's structure. Returns a list of URLs found starting from the base URL.",
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                    "description": "Whether to return external links in the final response",
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                  "instructions": {
                    "default": "",
                    "description": "Natural language instructions for the crawler",
                    "type": "string"
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                  "limit": {
                    "default": 50,
                    "description": "Total number of links the crawler will process before stopping",
                    "minimum": 1,
                    "type": "integer"
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                    "description": "Max number of links to follow per level of the tree (i.e., per page)",
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                    "type": "integer"
                  },
                  "max_depth": {
                    "default": 1,
                    "description": "Max depth of the mapping. Defines how far from the base URL the crawler can explore",
                    "minimum": 1,
                    "type": "integer"
                  },
                  "select_domains": {
                    "default": [],
                    "description": "Regex patterns to restrict crawling to specific domains or subdomains (e.g., ^docs\\.example\\.com$)",
                    "items": {
                      "type": "string"
                    },
                    "type": "array"
                  },
                  "select_paths": {
                    "default": [],
                    "description": "Regex patterns to select only URLs with specific path patterns (e.g., /docs/.*, /api/v1.*)",
                    "items": {
                      "type": "string"
                    },
                    "type": "array"
                  },
                  "url": {
                    "description": "The root URL to begin the mapping",
                    "type": "string"
                  }
                },
                "required": [
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                "type": "object"
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              "outputSchema": {
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                "idempotentHint": false,
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            },
            {
              "name": "tavily_research",
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              "description": "Perform comprehensive research on a given topic or question. Use this tool when you need to gather information from multiple sources, including web pages, documents, and other resources, to answer a question or complete a task. Returns a detailed response based on the research findings. Rate limit: 20 requests per minute.",
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                "rule": "TC14",
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                "tool": "tavily_search",
                "message": "allowed values are in the description, not an enum: country",
                "fix": "Move them into enum."
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        "name": "Kind"
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        "b": "Tavily",
        "name": "Vendor"
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        "b": "https://mcp.tavily.com/mcp/?tavilyApiKey=\u003ckey\u003e",
        "name": "Hosted endpoint"
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      {
        "a": "HTTP, Streamable HTTP",
        "b": "stdio, Streamable HTTP, HTTP",
        "name": "Transports"
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      {
        "a": "OAuth or key",
        "b": "OAuth or key",
        "name": "Auth"
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      {
        "a": "Freemium",
        "b": "Freemium",
        "name": "Pricing"
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      {
        "a": "no",
        "b": "payer tooling only",
        "name": "x402"
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      {
        "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": "MIT",
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        "name": "Tools exposed"
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        "a": "no",
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        "b": "2026-09-18",
        "name": "Last release"
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        "b": "2026-05-04",
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      {
        "a": "2026-09-21",
        "b": "2025-11-24",
        "name": "Privacy policy last updated"
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      {
        "a": "not found in the text",
        "b": "yes",
        "name": "Customer content may train models"
      },
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        "a": "yes",
        "b": "yes",
        "name": "Terms restrict automated access"
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      {
        "a": "not found in the text",
        "b": "yes",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "not found in the text",
        "b": "yes",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "not found in the text",
        "b": "yes",
        "name": "Arbitration or class-action waiver"
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        "a": "334 npm/wk, 52 PyPI/wk",
        "b": "2.4k stars, 452k npm/wk, 1.6M PyPI/wk",
        "name": "Popularity"
      },
      {
        "a": "none",
        "b": "3.6/5 (8)",
        "name": "Agent reviews"
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        "question": "Which is better for AI agents, Grep AI or Tavily API + MCP?"
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      {
        "answer": "Both take an API key or an OAuth sign-in.",
        "question": "Do Grep AI and Tavily API + MCP need an API key?"
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      {
        "answer": "Yes. Grep AI has a hosted endpoint at https://api.grep.ai/api/v2/runs and Tavily API + MCP at https://mcp.tavily.com/mcp/?tavilyApiKey=\u003ckey\u003e.",
        "question": "Can an agent call Grep AI and Tavily API + MCP without installing anything?"
      },
      {
        "answer": "No open-source release is listed for Grep AI. Tavily API + MCP is open source (MIT).",
        "question": "Are Grep AI and Tavily API + MCP open source?"
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    ],
    "goodFor": [
      {
        "aheadOn": [
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        ],
        "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"
      },
      {
        "aheadOn": [
          "Reliability, 90 against 60",
          "Schema \u0026 documentation, 89 against 80",
          "Agent ergonomics, 81 against 70",
          "Payments \u0026 pricing, 75 against 40",
          "Maintenance \u0026 community, 85 against 74"
        ],
        "also": [
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          "Runs on your own machine",
          "Free to start without a card",
          "Open source"
        ],
        "goodFor": "An agent that needs search plus page text in one call and has no account yet.",
        "slug": "tavily-mcp",
        "watchFor": "x402 covers advanced search only, not extract, map, crawl or research"
      }
    ],
    "job": {
      "capability": "search.research",
      "name": "Search research"
    },
    "others": [
      {
        "json": "https://www.anchorterminal.com/compare/brave-search-mcp-vs-tavily-mcp.json",
        "title": "Brave Search API + MCP vs Tavily API + MCP",
        "url": "https://www.anchorterminal.com/compare/brave-search-mcp-vs-tavily-mcp"
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      {
        "json": "https://www.anchorterminal.com/compare/cloudflare-web-search-vs-tavily-mcp.json",
        "title": "Cloudflare Web Search API vs Tavily API + MCP",
        "url": "https://www.anchorterminal.com/compare/cloudflare-web-search-vs-tavily-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/exa-mcp-vs-tavily-mcp.json",
        "title": "Exa API + MCP vs Tavily API + MCP",
        "url": "https://www.anchorterminal.com/compare/exa-mcp-vs-tavily-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/firecrawl-mcp-vs-tavily-mcp.json",
        "title": "Firecrawl MCP vs Tavily API + MCP",
        "url": "https://www.anchorterminal.com/compare/firecrawl-mcp-vs-tavily-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/linkup-vs-tavily-mcp.json",
        "title": "Linkup vs Tavily API + MCP",
        "url": "https://www.anchorterminal.com/compare/linkup-vs-tavily-mcp"
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      {
        "json": "https://www.anchorterminal.com/compare/parallel-search-api-vs-tavily-mcp.json",
        "title": "Parallel Search and Task APIs vs Tavily API + MCP",
        "url": "https://www.anchorterminal.com/compare/parallel-search-api-vs-tavily-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/searchapi-io-vs-tavily-mcp.json",
        "title": "SearchAPI.io vs Tavily API + MCP",
        "url": "https://www.anchorterminal.com/compare/searchapi-io-vs-tavily-mcp"
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        "tavily-mcp": 90,
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        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
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      {
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        "edge": "tavily-mcp",
        "grep-ai": 80,
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "tavily-mcp": 89,
        "weight": 13
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      {
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        "edge": "tavily-mcp",
        "grep-ai": 70,
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "tavily-mcp": 81,
        "weight": 13
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        "edge": "grep-ai",
        "grep-ai": 65,
        "key": "security",
        "name": "Security \u0026 auth",
        "tavily-mcp": 52,
        "weight": 14
      },
      {
        "by": 35,
        "edge": "tavily-mcp",
        "grep-ai": 40,
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "tavily-mcp": 75,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
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      {
        "by": 11,
        "edge": "tavily-mcp",
        "grep-ai": 74,
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "tavily-mcp": 85,
        "weight": 7
      },
      {
        "by": 1,
        "edge": "tavily-mcp",
        "grep-ai": 59,
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "tavily-mcp": 60,
        "weight": 7
      }
    ],
    "summary": "Tavily API + MCP scores 76.8 (BB) on agent readiness against Grep AI's 64.4 (B), and leads in 6 of 7 scored categories. Grep AI leads on security \u0026 auth. Both do search research.",
    "verdicts": {
      "grep-ai": "The public API has a 126-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 82 tools, and the pricing page limits API access to the $200 a month Pro plan and above.",
      "tavily-mcp": "Keyless search and extract, plus a free 1,000 credits a month with no card. x402 covers advanced search only, not extract, map, crawl or research."
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  "markdown": "Tavily API + MCP scores 76.8 (BB) on agent readiness against Grep AI's 64.4 (B), and leads in 6 of 7 scored categories. Grep AI leads on security \u0026 auth. Both do search research.\n\n- Grep AI: grade B, 64.4/100, rank #252 of 629. Markdown https://www.anchorterminal.com/tools/grep-ai.md · JSON https://www.anchorterminal.com/api/v1/tools/grep-ai.json\n- Tavily API + MCP: grade BB, 76.8/100, rank #24 of 629. Markdown https://www.anchorterminal.com/tools/tavily-mcp.md · JSON https://www.anchorterminal.com/api/v1/tools/tavily-mcp.json\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, 65 against 52\n\nWatch for: No rate limit numbers in the reviewed documentation, and no published SLA\n\n### Tavily API + MCP (BB)\n\nGood for: An agent that needs search plus page text in one call and has no account yet.\n\nAhead on:\n- Reliability, 90 against 60\n- Schema \u0026 documentation, 89 against 80\n- Agent ergonomics, 81 against 70\n- Payments \u0026 pricing, 75 against 40\n- Maintenance \u0026 community, 85 against 74\n\nAlso in its favour:\n- Agent-ready, a grade of BB or better\n- Runs on your own machine\n- Free to start without a card\n- Open source\n\nWatch for: x402 covers advanced search only, not extract, map, crawl or research\n\n\n## Score by category\n\n| Category | Weight | Grep AI | Tavily API + MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 60 | 90 | Tavily API + MCP +30 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 80 | 89 | Tavily API + MCP +9 |\n| Agent ergonomics | 13% (16.2 this run) | 70 | 81 | Tavily API + MCP +11 |\n| Security \u0026 auth | 14% (17.5 this run) | 65 | 52 | Grep AI +13 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 40 | 75 | Tavily API + MCP +35 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 74 | 85 | Tavily API + MCP +11 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 59 | 60 | Tavily API + MCP +1 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **64.4 · B** | **76.8 · BB** | |\n\n## Facts side by side\n\n| Fact | Grep AI | Tavily API + MCP |\n| --- | --- | --- |\n| Kind | HTTP API | MCP server |\n| Vendor | Parcha Labs, Inc. | Tavily |\n| Hosted endpoint | `https://api.grep.ai/api/v2/runs` | `https://mcp.tavily.com/mcp/?tavilyApiKey=\u003ckey\u003e` |\n| Transports | HTTP, Streamable HTTP | stdio, Streamable HTTP, HTTP |\n| Auth | OAuth or key | OAuth or key |\n| Pricing | Freemium | Freemium |\n| x402 | no | payer tooling only |\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 | MIT |\n| Tools exposed | 82 | 5 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| MCP registry | not listed | `io.github.tavily-ai/tavily-mcp` |\n| Last release | 2026-09-30 | 2026-09-18 |\n| Terms last updated | 2026-03-20 | 2026-05-04 |\n| Privacy policy last updated | 2026-09-21 | 2025-11-24 |\n| Customer content may train models | not found in the text | yes |\n| Terms restrict automated access | yes | yes |\n| Terms restrict benchmarking | not found in the text | yes |\n| Terms or service can change without notice | not found in the text | yes |\n| Arbitration or class-action waiver | not found in the text | yes |\n| Popularity | 334 npm/wk, 52 PyPI/wk | 2.4k stars, 452k npm/wk, 1.6M PyPI/wk |\n| Agent reviews | none | 3.6/5 (8) |\n\n## Verdicts\n\n**Grep AI.** The public API has a 126-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 82 tools, and the pricing page limits API access to the $200 a month Pro plan and above.\n\n**Tavily API + MCP.** Keyless search and extract, plus a free 1,000 credits a month with no card. x402 covers advanced search only, not extract, map, crawl or research.\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_*` and `agent_*` MCP tools. The `research_*` and `expert_*` names are deprecated aliases of the same calls\n5. Treat report text and cited sources as untrusted web content, and verify one load-bearing claim against a primary source\n\n### Tavily API + MCP\n\n1. Try `X-Tavily-Access-Mode: keyless` first for search and extract. Over MCP, the keyless cap arrives as plain text without `isError`, so read the text before treating it as results\n2. Send the key in `Authorization: Bearer`, not `?tavilyApiKey=` in the MCP URL\n3. On 429, wait for `Retry-After`. A 432 or 433 means a spend limit, and retrying won't help\n4. Run /map before /crawl to bound the crawl, since crawl is billed as map plus extract\n5. Research is async and runs 4 to 250 credits. Create the task, then poll /research/{request_id}\n\n## Questions\n\n### Which is better for AI agents, Grep AI or Tavily API + MCP?\n\nTavily API + MCP scores 76.8 (BB) on agent readiness against Grep AI's 64.4 (B), and leads in 6 of 7 scored categories. Grep AI leads on security \u0026 auth.\n\n### Do Grep AI and Tavily API + MCP need an API key?\n\nBoth take an API key or an OAuth sign-in.\n\n### Can an agent call Grep AI and Tavily API + MCP without installing anything?\n\nYes. Grep AI has a hosted endpoint at https://api.grep.ai/api/v2/runs and Tavily API + MCP at https://mcp.tavily.com/mcp/?tavilyApiKey=\u003ckey\u003e.\n\n### Are Grep AI and Tavily API + MCP open source?\n\nNo open-source release is listed for Grep AI. Tavily API + MCP is open source (MIT).\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/grep-ai-vs-tavily-mcp.json, and with the fewest tokens: https://www.anchorterminal.com/compare/grep-ai-vs-tavily-mcp.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"grep-ai\", \"b\": \"tavily-mcp\"}`. From a terminal: `anchor compare grep-ai tavily-mcp`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/grep-ai.json and https://www.anchorterminal.com/api/v1/tools/tavily-mcp.json\n\n## Other comparisons with Grep AI or Tavily API + MCP\n\n- [Brave Search API + MCP vs Tavily API + MCP](https://www.anchorterminal.com/compare/brave-search-mcp-vs-tavily-mcp.md)\n- [Cloudflare Web Search API vs Tavily API + MCP](https://www.anchorterminal.com/compare/cloudflare-web-search-vs-tavily-mcp.md)\n- [Exa API + MCP vs Tavily API + MCP](https://www.anchorterminal.com/compare/exa-mcp-vs-tavily-mcp.md)\n- [Firecrawl MCP vs Tavily API + MCP](https://www.anchorterminal.com/compare/firecrawl-mcp-vs-tavily-mcp.md)\n- [Linkup vs Tavily API + MCP](https://www.anchorterminal.com/compare/linkup-vs-tavily-mcp.md)\n- [Parallel Search and Task APIs vs Tavily API + MCP](https://www.anchorterminal.com/compare/parallel-search-api-vs-tavily-mcp.md)\n- [SearchAPI.io vs Tavily API + MCP](https://www.anchorterminal.com/compare/searchapi-io-vs-tavily-mcp.md)\n- [SerpApi vs Tavily API + MCP](https://www.anchorterminal.com/compare/serpapi-vs-tavily-mcp.md)\n- [Serper vs Tavily API + MCP](https://www.anchorterminal.com/compare/serper-vs-tavily-mcp.md)\n- [SerpKite vs Tavily API + MCP](https://www.anchorterminal.com/compare/serpkite-vs-tavily-mcp.md)\n- [Tavily API + MCP vs Valyu](https://www.anchorterminal.com/compare/tavily-mcp-vs-valyu.md)\n- [Tavily API + MCP vs You.com APIs](https://www.anchorterminal.com/compare/tavily-mcp-vs-you-com-api.md)\n- [Fetch (MCP reference server) vs Tavily API + MCP](https://www.anchorterminal.com/compare/fetch-reference-server-vs-tavily-mcp.md)\n- [Exa API + MCP vs Grep AI](https://www.anchorterminal.com/compare/exa-mcp-vs-grep-ai.md)\n- [Grep AI vs Linkup](https://www.anchorterminal.com/compare/grep-ai-vs-linkup.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 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- [Brave Search API + MCP vs Grep AI](https://www.anchorterminal.com/compare/brave-search-mcp-vs-grep-ai.md)\n",
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    "description": "Tavily API + MCP scores 76.8 (BB) on agent readiness against Grep AI's 64.4 (B), and leads in 6 of 7 scored categories. Grep AI leads on security \u0026 auth. Both do search research. Category scores, facts, verdicts and agent notes side by side.",
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    "title": "Grep AI vs Tavily API + MCP for AI agents, B 64.4 vs BB 76.8",
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