{ "data": { "a": { "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" } }, "answer": "Perplexity Search API and Valyu score within a point of each other on agent readiness, 70.2 (BB) and 69.3 (B). Valyu leads on payments \u0026 pricing and transparency \u0026 trust.", "b": { "slug": "valyu", "name": "Valyu", "vendor": "Valyu", "vendorUrl": "https://www.valyu.ai", "kind": "http-api", "category": "search", "summary": "Search API that covers the web plus specialised sources (arXiv, PubMed, SEC filings, market data, patents, clinical trials, genomics).", "url": "https://www.anchorterminal.com/tools/valyu", "markdownUrl": "https://www.anchorterminal.com/tools/valyu.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/valyu.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/valyu.json", "dns": "valyu.grade.anchorterminal.com", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://api.valyu.ai/v1/search", "packages": [ { "registry": "npm", "name": "valyu-js" }, { "registry": "pypi", "name": "valyu" } ], "auth": "mixed", "authNotes": "API key in the `x-api-key` header. After a person creates the account, the Valyu CLI (`valyu login`, browser or headless approval) lets an agent mint keys with a hard spending cap, rotate and revoke them, and management keys carry explicit scopes. The hosted MCP at mcp.valyu.ai takes Sign in with Valyu (OAuth), a Bearer or X-API-Key header, or, as the docs lead with, `?valyuApiKey=` in the URL.", "pricing": "freemium", "pricingNotes": "New accounts get $10 of credit ($20 with a company email), no card, valid 12 months. Pay as you go is 1,600 credits for a $10 top-up; Ridiculously Cheap $29 a month (5,000 credits), Comfortably Pro $99 (18,000), Serious Business $499 (100,000). No overage, and an empty balance returns 402. Search bills per result returned, 0.1 credits for web and news, 0.05 for arXiv, PubMed, bioRxiv and medRxiv, 1.92 for SEC filings and more for licensed data. Contents 0.2 credits a URL. DeepResearch 8 (instant) to 2,500 (max) credits a task (https://docs.valyu.ai/pricing, checked 2 November 2026).", "priceSummary": "$0.625 / 1k pages", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in llms.txt, the pricing page or the OpenAPI file (checked 2026-11-02).", "endpoints": [] }, "toolCount": 6, "popularity": { "githubStars": 19, "npmWeekly": 6664, "pypiWeekly": 7097, "asOf": "2026-09-30" }, "docsUrl": "https://docs.valyu.ai", "llmsTxt": "https://docs.valyu.ai/llms.txt", "openapi": "https://docs.valyu.ai/api-reference/openapi.json", "capabilities": [ "web.search", "web.fetch", "web.extract", "search.answer", "search.research", "search.news" ], "tags": [ "hosted", "freemium", "mcp", "llms-txt", "openapi", "python", "typescript", "async-jobs", "enterprise" ], "lastRelease": "2026-10-31", "graded": true, "anchor": { "graded": true, "score": 69.3, "grade": "B", "agentReady": false, "rank": 255, "ranked": true, "rankOf": 1510, "categoryRank": 6, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 83, "maintenance": 80, "payments": 45, "reliability": 70, "schema": 90, "security": 44, "transparency": 78 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-11-02" }, "negative": 0, "verdict": "Web plus academic, financial, patent and life-science sources behind one search call, billed per result with a per-query price cap. Since 21 October rate limits scale with the plan and 429s carry Retry-After, but the per-plan numbers appear only in examples. The MCP docs still put the API key in the URL.", "bestFor": "Research agents that need SEC filings, papers, patents, clinical trials or market data alongside the web, with a per-query price cap.", "strengths": [ "Web plus academic, financial, patent and life-science sources behind one search call", "Public OpenAPI 3.0.3 with 24 paths, tight parameter constraints and a 206 partial-success code", "Spend-capped, rotatable keys from the CLI, and scoped management keys", "429s carry Retry-After and a structured body, are never charged, and the SDKs retry them", "Queries deleted within 24 to 72 hours and not used for training, per the privacy policy" ], "weaknesses": [ "Per-plan rate limits are stated only in example responses, not in a table", "Web results use 0.1 credits each, about $0.625 per 1,000 at pay-as-you-go rates, so a 10-result search is about $0.006", "MCP docs give `?valyuApiKey=` in the URL query string for every client", "No prompt-injection guidance for the full page text it returns", "No idempotency keys for DeepResearch task creation" ], "agentNotes": [ "Set `max_price` and `max_num_results` on every search to bound cost", "Mint a spend-capped key with the Valyu CLI rather than reusing the account's main key", "On a 429, wait the `retry_after` seconds and retry; it's never charged. The SDKs retry twice by default", "Store each DeepResearch task id before retrying a failed create, so a retry doesn't start and bill a second task", "Call `valyu_search`. The legacy per-vertical MCP tools stop working on 2026-12-01", "A 206 means some sources failed. Check which before treating results as complete" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 4.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 69.3 } ], "editorialScores": { "ergonomics": 83, "maintenance": 80, "payments": 45, "reliability": 70, "schema": 90, "security": 44, "transparency": 65 }, "provenanceScore": 91, "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": { "http": "curl -X POST https://api.valyu.ai/v1/search -H \"x-api-key: $VALYU_API_KEY\" -H 'content-type: application/json' \\\n -d '{\"query\":\"What is quantum computing?\",\"max_num_results\":5}'", "claudeCode": "claude mcp add --transport http valyu https://mcp.valyu.ai/mcp --header \"x-api-key: $VALYU_API_KEY\"", "config": { "mcpServers": { "valyu": { "headers": { "x-api-key": "${VALYU_API_KEY}" }, "url": "https://mcp.valyu.ai/mcp" } } } }, "letme": { "capability": "https://letme.dev/web.search", "tool": "https://letme.dev/valyu" }, "area": "web-data", "unitPrices": [ { "item": "Web search, per 1,000 results retrieved", "unit": "1k-pages", "usd": 0.625, "note": "100 credits at pay-as-you-go rates (1,600 credits for $10); priced per result, not per query" }, { "item": "arXiv, PubMed, bioRxiv and medRxiv, per 1,000 results", "unit": "1k-pages", "usd": 0.3125, "note": "50 credits at pay-as-you-go rates" }, { "item": "Contents extraction", "unit": "1k-pages", "usd": 1.25, "note": "200 credits at pay-as-you-go rates; failed URLs free" }, { "item": "DeepResearch, standard mode", "unit": "call", "usd": 0.625, "note": "100 credits at pay-as-you-go rates; instant 8, fast 25, heavy 500, max 2,500 credits" }, { "item": "Ridiculously Cheap plan", "unit": "month", "usd": 29, "note": "5,000 credits" }, { "item": "Comfortably Pro plan", "unit": "month", "usd": 99, "note": "18,000 credits" } ], "provenance": { "legalEntity": "Valyu.Network Ltd", "domain": "valyu.ai", "domainRegistered": "2024-09-03", "domainNote": "The older valyu.network (registered 2022-09-17) redirects to valyu.ai, which is the current domain.", "endpointOnVendorDomain": true, "terms": "https://www.valyu.ai/terms", "privacy": "https://www.valyu.ai/privacy-policy", "statusPage": "https://status.valyu.ai", "changelog": "https://docs.valyu.ai/changelog/platform", "securityTxt": "valid", "checked": "2026-11-02", "score": 91 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/valyu.json", "live": { "slug": "valyu", "probe": { "target": "https://api.valyu.ai/v1/search", "method": "get", "lastAt": "2026-11-07T19:22:42.601494312Z", "lastOk": true, "lastStatus": 403, "lastMs": 314, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 274, "p95ms24h": 367, "samples24h": 238, "samples30d": 7920, "days": [ { "date": "2026-10-07", "probes": 272, "ok": 272 }, { "date": "2026-10-08", "probes": 268, "ok": 268 }, { "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": 253 }, { "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": 253 }, { "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": 250, "ok": 250 }, { "date": "2026-10-29", "probes": 249, "ok": 249 }, { "date": "2026-10-30", "probes": 249, "ok": 249 }, { "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": 185 }, { "date": "2026-11-06", "probes": 241, "ok": 241 }, { "date": "2026-11-07", "probes": 197, "ok": 197 } ] }, "vendorStatus": { "page": "https://status.valyu.ai", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-11-07T04:48:55.065232872Z" }, "versions": [ { "registry": "npm", "name": "valyu-js", "version": "2.11.5", "seenAt": "2026-11-07T00:14:35.155580008Z" }, { "registry": "pypi", "name": "valyu", "version": "2.13.5", "released": "2026-10-31", "seenAt": "2026-11-07T00:14:35.917764913Z" } ], "npmWeekly": 6013, "pypiWeekly": 14783, "securityTxt": { "url": "https://valyu.ai/.well-known/security.txt", "state": "valid", "expires": "2027-03-10T00:00:00.000Z", "checkedAt": "2026-11-07T16:01:16.032637581Z" }, "llmsTxt": { "url": "https://docs.valyu.ai/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-11-07T15:34:15.853486852Z" }, "domain": { "domain": "valyu.ai", "registered": "2024-09-03", "source": "https://rdap.identitydigital.services/rdap/domain/valyu.ai", "checkedAt": "2026-11-01T14:27:57.590260635Z" }, "pages": [ { "url": "https://docs.valyu.ai/changelog/platform", "kind": "deprecations", "status": 200, "checkedAt": "2026-11-07T14:08:35.441449201Z", "changedAt": "2026-11-01T06:43:18.880598886Z", "fingerprint": "095d75ad639e" }, { "url": "https://docs.valyu.ai/changelog/sdk-and-api", "kind": "deprecations", "status": 200, "checkedAt": "2026-11-07T14:08:37.726398434Z", "changedAt": "2026-11-06T13:30:53.89149515Z", "fingerprint": "a94108ad2bfe" }, { "url": "https://docs.valyu.ai/integrations/mcp-server", "kind": "deprecations", "status": 200, "checkedAt": "2026-11-07T14:08:39.77770063Z", "changedAt": "2026-10-26T03:15:57.946516331Z", "fingerprint": "cd0de6d39d4d" }, { "url": "https://docs.valyu.ai/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-11-07T14:08:41.62547451Z", "changedAt": "2026-11-07T14:08:41.62547451Z", "fingerprint": "accce9c87195" }, { "url": "https://www.valyu.ai/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-11-02T07:39:21.136800382Z", "changedAt": "2026-10-21T01:08:14.690082174Z", "fingerprint": "08da9832129c" }, { "url": "https://www.valyu.ai/privacy-policy", "kind": "privacy", "status": 200, "checkedAt": "2026-11-07T14:36:25.121742772Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "b6b4aa4fc051" }, { "url": "https://www.valyu.ai/terms", "kind": "terms", "status": 200, "checkedAt": "2026-11-07T14:36:27.480524852Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "fef72d613a0e" } ], "mcpTools": { "url": "https://mcp.valyu.ai/mcp", "checkedAt": "2026-11-07T01:48:56.488331497Z", "status": "auth", "note": "asks for credentials before listing its tools", "changedAt": "2026-11-07T01:48:56.488331497Z" }, "updatedAt": "2026-11-07T19:22:42.601494312Z" } }, "edges": [ { "by": 20, "category": "payments", "leads": "valyu", "name": "Payments \u0026 pricing", "reasons": { "a": "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.", "b": "No x402, MPP or L402 in llms.txt, the pricing page or the OpenAPI file on 2 November, so there was no payment route to check live (0). Since October usage is billed in credits, 1,600 for a $10 top-up, with per-result Search prices by source (web and news 0.1 credits, arXiv and PubMed 0.05, SEC filings 1.92), Contents at 0.2 a URL and fixed DeepResearch prices by mode, all public (20). $10 of free credit ($20 with a company email), no card, valid 12 months (20). A person has to create the account, but after that an agent can log in through the CLI, headless if needed, and mint its own spend-capped keys. That's a programmatic key route after a human signup, so we gave part of the line (5). 0+20+20+5 = 45." }, "scores": { "a": 25, "b": 45 } }, { "by": 12, "category": "security", "leads": "perplexity-search-api", "name": "Security \u0026 auth", "reasons": { "a": "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.", "b": "The CLI mints API keys with a hard spending cap and can rotate and revoke them, management keys carry explicit scopes, organisations have MFA, and the hosted MCP has OAuth sign-in (28). The MCP docs lead with `?valyuApiKey=` in the URL (minus 10). Spend-capped keys and `max_price` limit cost exposure, but `valyu_deepresearch_control` deletes tasks with no confirmation we could find (12). Search and Contents return full page text from the open web, and we found no prompt-injection guidance in the docs index (0). No per-call log or audit trail found for the operator (0). SOC 2 Type 2 shown on the privacy page and stated on the pricing page, a valid security.txt (security@valyu.ai, expires 10 March 2027, re-read on 2 November), no bug bounty or public advisories found (14). The MCP docs still give `?valyuApiKey=` for every client on 2 November. 28-10+12+0+0+14 = 44." }, "scores": { "a": 56, "b": 44 } }, { "by": 12, "category": "transparency", "leads": "valyu", "name": "Transparency \u0026 trust", "reasons": { "a": "Closed service under terms naming Perplexity AI, Inc. and California law. The MCP server is MIT and the SDKs Apache-2.0 (18 of 30). The terms and DPA say Customer Content and personal data don't train Perplexity's models, the DPA deletes personal data within 30 days of the service ending, and the Privacy and Security page says retention varies by API and zero data retention is not the default. The DPA also says Perplexity Search may follow different data terms, which weren't found, and no retention period for search queries is stated (15 of 30). Sonar Chat Completions support ended on 27 September 2026 with a migration guide and requests reformulated rather than refused, and sonar-reasoning was removed on 15 December 2025 with a named replacement. Notices are dated by month and there is no standing notice period beyond the terms' 30 days for termination (10 of 20). A sub-processor list on the trust centre, which is drawn by script and wasn't read, ten business days' notice of new non-model subprocessors, and SCCs for EU and UK transfers. No data location is stated (8 of 20). 18 + 15 + 10 + 8 = 51.", "b": "Closed service with terms that name Valyu.Network Ltd, company 14436543 in England and Wales, per the 30 September check (15). The privacy policy (20 October 2025) says queries are deleted within 24 to 72 hours, security logs kept 90 days, performance logs 30 days and billing records 7 years, and that query data isn't used to train models. No DPA referenced (26). Dated notice for the legacy MCP tools, hidden now and removed on 1 December 2026, but no general deprecation policy (12). Processing in the UK, EU and US is disclosed. Subprocessors are named by category only (12). The privacy policy is unchanged on 2 November (last updated 20 October 2025), and the pricing page now lists zero data retention on request for Enterprise. 15+26+12+12 = 65." }, "scores": { "a": 66, "b": 78 } }, { "by": 10, "category": "reliability", "leads": "perplexity-search-api", "name": "Reliability", "reasons": { "a": "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.", "b": "Instatus page at status.valyu.ai with separate Search, Contents, Answer and DeepResearch components and an RSS history (20). In the 90 days to 2 November it lists a 13-minute Search incident on 6 October with \"certain data sources\", a partial incident, plus scheduled maintenance on 9 August (Search, 3 hours 13 minutes, announced the evening before) and 20 October (every component, 3 hours, announced 47 minutes ahead). Minor only (20). Since 21 October limits apply per organisation and per endpoint and scale with the plan, but the numbers appear only in example responses (Search at 5 requests a second on pay-as-you-go and 10 on Ridiculously Cheap; DeepResearch at 2 and 5 tasks at once), and the pricing page the docs point to for each plan's rate doesn't list them (8 of 15). A 429 carries a Retry-After header and a body with retry_after, the plan and the limit, the docs say to wait and retry with backoff and that a rate-limited request is never charged, and the SDKs retry 429s on their own. No idempotency keys, but the pricing page says to persist research task ids so retries don't create duplicate tasks (12). No SLA found (0). Search, Contents, Answer and DeepResearch are GA, and Workflows is labelled beta (10). 20+20+8+12+0+10 = 70." }, "scores": { "a": 80, "b": 70 } } ], "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "Perplexity", "b": "Valyu", "name": "Vendor" }, { "a": "https://api.perplexity.ai/mcp", "b": "https://api.valyu.ai/v1/search", "name": "Hosted endpoint" }, { "a": "Streamable HTTP, stdio", "b": "HTTP, Streamable HTTP", "name": "Transports" }, { "a": "OAuth or key", "b": "OAuth or key", "name": "Auth" }, { "a": "Pay per use", "b": "Freemium", "name": "Pricing" }, { "a": "$2.50 per 1,000 tool calls", "b": "$0.625 per 1,000 pages", "name": "Price for web search" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Proprietary service under the Perplexity API Terms of Service. The MCP server is MIT and the official SDKs Apache-2.0", "b": "none", "name": "Licence" }, { "a": "4", "b": "6", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "ai.perplexity/mcp-server", "b": "not listed", "name": "MCP registry" }, { "a": "2026-10-23", "b": "2026-10-31", "name": "Last release" }, { "a": "couldn't be read", "b": "2025-10-20", "name": "Terms last updated" }, { "a": "couldn't be read", "b": "2025-10-20", "name": "Privacy policy last updated" }, { "a": "couldn't be read", "b": "not found in the text", "name": "Customer content may train models" }, { "a": "couldn't be read", "b": "not found in the text", "name": "Terms restrict automated access" }, { "a": "couldn't be read", "b": "not found in the text", "name": "Terms restrict benchmarking" }, { "a": "couldn't be read", "b": "not found in the text", "name": "Terms or service can change without notice" }, { "a": "couldn't be read", "b": "not found in the text", "name": "Arbitration or class-action waiver" }, { "a": "none", "b": "19 stars, 6.7k npm/wk, 7.1k PyPI/wk", "name": "Popularity" }, { "a": "none", "b": "4.5/5 (2)", "name": "Agent reviews" } ], "faq": [ { "answer": "Perplexity Search API and Valyu score within a point of each other on agent readiness, 70.2 (BB) and 69.3 (B). Valyu leads on payments \u0026 pricing and transparency \u0026 trust.", "question": "Which is better for AI agents, Perplexity Search API or Valyu?" }, { "answer": "Both take an API key or an OAuth sign-in.", "question": "Do Perplexity Search API and Valyu need an API key?" }, { "answer": "Yes. Perplexity Search API has a hosted endpoint at https://api.perplexity.ai/mcp and Valyu at https://api.valyu.ai/v1/search.", "question": "Can an agent call Perplexity Search API and Valyu without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 80 against 70", "Security \u0026 auth, 56 against 44" ], "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" }, { "aheadOn": [ "Payments \u0026 pricing, 45 against 25", "Transparency \u0026 trust, 78 against 66" ], "also": null, "goodFor": "Research agents that need SEC filings, papers, patents, clinical trials or market data alongside the web, with a per-query price cap.", "slug": "valyu", "watchFor": "Per-plan rate limits are stated only in example responses, not in a table" } ], "history": { "perplexity-search-api": null, "valyu": [ { "causes": [ "product", "evidence" ], "date": "2026-11-02", "delta": 4.7, "from": 64.6, "fromGrade": "B", "to": 69.3, "toGrade": "B" }, { "causes": [ "method" ], "date": "2026-10-08", "delta": 0, "from": 64.6, "fromGrade": "B", "to": 64.6, "toGrade": "B" } ] }, "job": { "capability": "web.search", "name": "Web search" }, "others": [ { "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/agentcore-web-search-vs-valyu.json", "title": "Web Search Tool on Amazon Bedrock AgentCore vs Valyu", "url": 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"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-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/searchapi-io-vs-valyu.json", "title": "SearchAPI.io vs Valyu", "url": "https://www.anchorterminal.com/compare/searchapi-io-vs-valyu" }, { "json": "https://www.anchorterminal.com/compare/serpapi-vs-valyu.json", "title": "SerpApi vs Valyu", "url": "https://www.anchorterminal.com/compare/serpapi-vs-valyu" }, { "json": "https://www.anchorterminal.com/compare/serper-vs-valyu.json", "title": "Serper vs Valyu", "url": "https://www.anchorterminal.com/compare/serper-vs-valyu" }, { "json": "https://www.anchorterminal.com/compare/serphouse-vs-valyu.json", "title": "SERPHouse vs Valyu", "url": "https://www.anchorterminal.com/compare/serphouse-vs-valyu" }, { "json": "https://www.anchorterminal.com/compare/serpkite-vs-valyu.json", "title": "SerpKite vs Valyu", "url": "https://www.anchorterminal.com/compare/serpkite-vs-valyu" }, { "json": "https://www.anchorterminal.com/compare/tavily-mcp-vs-valyu.json", "title": "Tavily API + MCP vs Valyu", "url": "https://www.anchorterminal.com/compare/tavily-mcp-vs-valyu" }, { "json": "https://www.anchorterminal.com/compare/tinyfish-search-vs-valyu.json", "title": "TinyFish Search vs Valyu", "url": "https://www.anchorterminal.com/compare/tinyfish-search-vs-valyu" }, { "json": "https://www.anchorterminal.com/compare/valyu-vs-you-com-api.json", "title": "Valyu vs You.com APIs", "url": "https://www.anchorterminal.com/compare/valyu-vs-you-com-api" }, { "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/arcmira-vs-valyu.json", "title": "Arcmira vs Valyu", "url": "https://www.anchorterminal.com/compare/arcmira-vs-valyu" }, { "json": "https://www.anchorterminal.com/compare/grep-ai-vs-perplexity-search-api.json", "title": "Grep AI vs Perplexity Search API", "url": "https://www.anchorterminal.com/compare/grep-ai-vs-perplexity-search-api" }, { "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" }, { "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/liner-mcp-vs-valyu.json", "title": "Liner Search MCP vs Valyu", "url": "https://www.anchorterminal.com/compare/liner-mcp-vs-valyu" }, { "json": "https://www.anchorterminal.com/compare/specstream-vs-valyu.json", "title": "SpecStream vs Valyu", "url": "https://www.anchorterminal.com/compare/specstream-vs-valyu" }, { "json": "https://www.anchorterminal.com/compare/fetch-reference-server-vs-valyu.json", "title": "Fetch (MCP reference server) vs Valyu", "url": "https://www.anchorterminal.com/compare/fetch-reference-server-vs-valyu" }, { "json": "https://www.anchorterminal.com/compare/newscatcher-vs-valyu.json", "title": "NewsCatcher vs Valyu", "url": "https://www.anchorterminal.com/compare/newscatcher-vs-valyu" } ], "panel": null, "scores": [ { "by": 10, "edge": "perplexity-search-api", "key": "reliability", "name": "Reliability", "perplexity-search-api": 80, "valyu": 70, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 1, "edge": "valyu", "key": "schema", "name": "Schema \u0026 documentation", "perplexity-search-api": 89, "valyu": 90, "weight": 13 }, { "by": 2, "edge": "perplexity-search-api", "key": "ergonomics", "name": "Agent ergonomics", "perplexity-search-api": 85, "valyu": 83, "weight": 13 }, { "by": 12, "edge": "perplexity-search-api", "key": "security", "name": "Security \u0026 auth", "perplexity-search-api": 56, "valyu": 44, "weight": 14 }, { "by": 20, "edge": "valyu", "key": "payments", "name": "Payments \u0026 pricing", "perplexity-search-api": 25, "valyu": 45, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 2, "edge": "perplexity-search-api", "key": "maintenance", "name": "Maintenance \u0026 community", "perplexity-search-api": 82, "valyu": 80, "weight": 7 }, { "by": 12, "edge": "valyu", "key": "transparency", "name": "Transparency \u0026 trust", "perplexity-search-api": 66, "valyu": 78, "weight": 7 } ], "summary": "Perplexity Search API and Valyu score within a point of each other on agent readiness, 70.2 (BB) and 69.3 (B). Valyu leads on payments \u0026 pricing and transparency \u0026 trust. Both do web search.", "tasks": null, "tutorials": [], "verdicts": { "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.", "valyu": "Web plus academic, financial, patent and life-science sources behind one search call, billed per result with a per-query price cap. Since 21 October rate limits scale with the plan and 429s carry Retry-After, but the per-plan numbers appear only in examples. The MCP docs still put the API key in the URL." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-valyu", "json": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-valyu.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-valyu.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/perplexity-search-api-vs-valyu.min.md" }, "markdown": "Perplexity Search API and Valyu score within a point of each other on agent readiness, 70.2 (BB) and 69.3 (B). Valyu leads on payments \u0026 pricing and transparency \u0026 trust. Both do web search.\n\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- Valyu: grade B, 69.3/100, rank #255 of 1510. Markdown https://www.anchorterminal.com/tools/valyu.md · JSON https://www.anchorterminal.com/api/v1/tools/valyu.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### 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 70\n- Security \u0026 auth, 56 against 44\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### Valyu (B)\n\nGood for: Research agents that need SEC filings, papers, patents, clinical trials or market data alongside the web, with a per-query price cap.\n\nAhead on:\n- Payments \u0026 pricing, 45 against 25\n- Transparency \u0026 trust, 78 against 66\n\nWatch for: Per-plan rate limits are stated only in example responses, not in a table\n\n\n## Why the edge\n\n### Payments \u0026 pricing: Valyu +20\n\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- Valyu (45): No x402, MPP or L402 in llms.txt, the pricing page or the OpenAPI file on 2 November, so there was no payment route to check live (0). Since October usage is billed in credits, 1,600 for a $10 top-up, with per-result Search prices by source (web and news 0.1 credits, arXiv and PubMed 0.05, SEC filings 1.92), Contents at 0.2 a URL and fixed DeepResearch prices by mode, all public (20). $10 of free credit ($20 with a company email), no card, valid 12 months (20). A person has to create the account, but after that an agent can log in through the CLI, headless if needed, and mint its own spend-capped keys. That's a programmatic key route after a human signup, so we gave part of the line (5). 0+20+20+5 = 45.\n\n### Security \u0026 auth: Perplexity Search API +12\n\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- Valyu (44): The CLI mints API keys with a hard spending cap and can rotate and revoke them, management keys carry explicit scopes, organisations have MFA, and the hosted MCP has OAuth sign-in (28). The MCP docs lead with `?valyuApiKey=` in the URL (minus 10). Spend-capped keys and `max_price` limit cost exposure, but `valyu_deepresearch_control` deletes tasks with no confirmation we could find (12). Search and Contents return full page text from the open web, and we found no prompt-injection guidance in the docs index (0). No per-call log or audit trail found for the operator (0). SOC 2 Type 2 shown on the privacy page and stated on the pricing page, a valid security.txt (security@valyu.ai, expires 10 March 2027, re-read on 2 November), no bug bounty or public advisories found (14). The MCP docs still give `?valyuApiKey=` for every client on 2 November. 28-10+12+0+0+14 = 44.\n\n### Transparency \u0026 trust: Valyu +12\n\n- Perplexity Search API (66): Closed service under terms naming Perplexity AI, Inc. and California law. The MCP server is MIT and the SDKs Apache-2.0 (18 of 30). The terms and DPA say Customer Content and personal data don't train Perplexity's models, the DPA deletes personal data within 30 days of the service ending, and the Privacy and Security page says retention varies by API and zero data retention is not the default. The DPA also says Perplexity Search may follow different data terms, which weren't found, and no retention period for search queries is stated (15 of 30). Sonar Chat Completions support ended on 27 September 2026 with a migration guide and requests reformulated rather than refused, and sonar-reasoning was removed on 15 December 2025 with a named replacement. Notices are dated by month and there is no standing notice period beyond the terms' 30 days for termination (10 of 20). A sub-processor list on the trust centre, which is drawn by script and wasn't read, ten business days' notice of new non-model subprocessors, and SCCs for EU and UK transfers. No data location is stated (8 of 20). 18 + 15 + 10 + 8 = 51.\n- Valyu (78): Closed service with terms that name Valyu.Network Ltd, company 14436543 in England and Wales, per the 30 September check (15). The privacy policy (20 October 2025) says queries are deleted within 24 to 72 hours, security logs kept 90 days, performance logs 30 days and billing records 7 years, and that query data isn't used to train models. No DPA referenced (26). Dated notice for the legacy MCP tools, hidden now and removed on 1 December 2026, but no general deprecation policy (12). Processing in the UK, EU and US is disclosed. Subprocessors are named by category only (12). The privacy policy is unchanged on 2 November (last updated 20 October 2025), and the pricing page now lists zero data retention on request for Enterprise. 15+26+12+12 = 65.\n\n### Reliability: Perplexity Search API +10\n\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- Valyu (70): Instatus page at status.valyu.ai with separate Search, Contents, Answer and DeepResearch components and an RSS history (20). In the 90 days to 2 November it lists a 13-minute Search incident on 6 October with \"certain data sources\", a partial incident, plus scheduled maintenance on 9 August (Search, 3 hours 13 minutes, announced the evening before) and 20 October (every component, 3 hours, announced 47 minutes ahead). Minor only (20). Since 21 October limits apply per organisation and per endpoint and scale with the plan, but the numbers appear only in example responses (Search at 5 requests a second on pay-as-you-go and 10 on Ridiculously Cheap; DeepResearch at 2 and 5 tasks at once), and the pricing page the docs point to for each plan's rate doesn't list them (8 of 15). A 429 carries a Retry-After header and a body with retry_after, the plan and the limit, the docs say to wait and retry with backoff and that a rate-limited request is never charged, and the SDKs retry 429s on their own. No idempotency keys, but the pricing page says to persist research task ids so retries don't create duplicate tasks (12). No SLA found (0). Search, Contents, Answer and DeepResearch are GA, and Workflows is labelled beta (10). 20+20+8+12+0+10 = 70.\n\n## Score by category\n\n| Category | Weight | Perplexity Search API | Valyu | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 80 | 70 | Perplexity Search API +10 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 89 | 90 | Valyu +1 |\n| Agent ergonomics | 13% (16.2 this run) | 85 | 83 | Perplexity Search API +2 |\n| Security \u0026 auth | 14% (17.5 this run) | 56 | 44 | Perplexity Search API +12 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 25 | 45 | Valyu +20 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 82 | 80 | Perplexity Search API +2 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 66 | 78 | Valyu +12 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **70.2 · BB** | **69.3 · B** | |\n\n## Facts side by side\n\n| Fact | Perplexity Search API | Valyu |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Perplexity | Valyu |\n| Hosted endpoint | `https://api.perplexity.ai/mcp` | `https://api.valyu.ai/v1/search` |\n| Transports | Streamable HTTP, stdio | HTTP, Streamable HTTP |\n| Auth | OAuth or key | OAuth or key |\n| Pricing | Pay per use | Freemium |\n| Price for web search | $2.50 per 1,000 tool calls | $0.625 per 1,000 pages |\n| x402 | no | no |\n| Licence | Proprietary service under the Perplexity API Terms of Service. The MCP server is MIT and the official SDKs Apache-2.0 | none |\n| Tools exposed | 4 | 6 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| MCP registry | `ai.perplexity/mcp-server` | not listed |\n| Last release | 2026-10-23 | 2026-10-31 |\n| Terms last updated | couldn't be read | 2025-10-20 |\n| Privacy policy last updated | couldn't be read | 2025-10-20 |\n| Customer content may train models | couldn't be read | not found in the text |\n| Terms restrict automated access | couldn't be read | not found in the text |\n| Terms restrict benchmarking | couldn't be read | not found in the text |\n| Terms or service can change without notice | couldn't be read | not found in the text |\n| Arbitration or class-action waiver | couldn't be read | not found in the text |\n| Popularity | none | 19 stars, 6.7k npm/wk, 7.1k PyPI/wk |\n| Agent reviews | none | 4.5/5 (2) |\n\n## How the scores have moved\n\n### Perplexity Search API\n\nNo score change since it was listed.\n\n### Valyu\n\n- +4.7 on 2 November 2026: product, new evidence\n- no change on 8 October 2026: checklist\n\n## Verdicts\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**Valyu.** Web plus academic, financial, patent and life-science sources behind one search call, billed per result with a per-query price cap. Since 21 October rate limits scale with the plan and 429s carry Retry-After, but the per-plan numbers appear only in examples. The MCP docs still put the API key in the URL.\n\n## Before you call either\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### Valyu\n\n1. Set `max_price` and `max_num_results` on every search to bound cost\n2. Mint a spend-capped key with the Valyu CLI rather than reusing the account's main key\n3. On a 429, wait the `retry_after` seconds and retry; it's never charged. The SDKs retry twice by default\n4. Store each DeepResearch task id before retrying a failed create, so a retry doesn't start and bill a second task\n5. Call `valyu_search`. The legacy per-vertical MCP tools stop working on 2026-12-01\n6. A 206 means some sources failed. Check which before treating results as complete\n\n## Questions\n\n### Which is better for AI agents, Perplexity Search API or Valyu?\n\nPerplexity Search API and Valyu score within a point of each other on agent readiness, 70.2 (BB) and 69.3 (B). Valyu leads on payments \u0026 pricing and transparency \u0026 trust.\n\n### Do Perplexity Search API and Valyu need an API key?\n\nBoth take an API key or an OAuth sign-in.\n\n### Can an agent call Perplexity Search API and Valyu without installing anything?\n\nYes. Perplexity Search API has a hosted endpoint at https://api.perplexity.ai/mcp and Valyu at https://api.valyu.ai/v1/search.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/perplexity-search-api-vs-valyu.json, and with the fewest tokens: https://www.anchorterminal.com/compare/perplexity-search-api-vs-valyu.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"perplexity-search-api\", \"b\": \"valyu\"}`. From a terminal: `anchor compare perplexity-search-api valyu`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/perplexity-search-api.json and https://www.anchorterminal.com/api/v1/tools/valyu.json\n\n## Other comparisons with Perplexity Search API or Valyu\n\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- [Web Search Tool on Amazon Bedrock AgentCore vs Valyu](https://www.anchorterminal.com/compare/agentcore-web-search-vs-valyu.md)\n- [Grounding with Bing Search vs Perplexity Search API](https://www.anchorterminal.com/compare/bing-grounding-vs-perplexity-search-api.md)\n- [Grounding with Bing Search vs Valyu](https://www.anchorterminal.com/compare/bing-grounding-vs-valyu.md)\n- [Brave Search API + MCP vs Perplexity Search API](https://www.anchorterminal.com/compare/brave-search-mcp-vs-perplexity-search-api.md)\n- [Brave Search API + MCP vs Valyu](https://www.anchorterminal.com/compare/brave-search-mcp-vs-valyu.md)\n- [Cloudflare Web Search API vs Perplexity Search API](https://www.anchorterminal.com/compare/cloudflare-web-search-vs-perplexity-search-api.md)\n- [Cloudflare Web Search API vs Valyu](https://www.anchorterminal.com/compare/cloudflare-web-search-vs-valyu.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- [DeepSeek Search and Fetch API vs Valyu](https://www.anchorterminal.com/compare/deepseek-search-api-vs-valyu.md)\n- [Exa API + MCP vs Perplexity Search API](https://www.anchorterminal.com/compare/exa-mcp-vs-perplexity-search-api.md)\n- [Exa API + MCP vs Valyu](https://www.anchorterminal.com/compare/exa-mcp-vs-valyu.md)\n- [Firecrawl MCP vs Perplexity Search API](https://www.anchorterminal.com/compare/firecrawl-mcp-vs-perplexity-search-api.md)\n- [Firecrawl MCP vs Valyu](https://www.anchorterminal.com/compare/firecrawl-mcp-vs-valyu.md)\n- [Kagi Search API vs Perplexity Search API](https://www.anchorterminal.com/compare/kagi-search-vs-perplexity-search-api.md)\n- [Kagi Search API vs Valyu](https://www.anchorterminal.com/compare/kagi-search-vs-valyu.md)\n- [Linkup vs Perplexity Search API](https://www.anchorterminal.com/compare/linkup-vs-perplexity-search-api.md)\n- [Linkup vs Valyu](https://www.anchorterminal.com/compare/linkup-vs-valyu.md)\n- [Mojeek Web Search API vs Perplexity Search API](https://www.anchorterminal.com/compare/mojeek-vs-perplexity-search-api.md)\n- [Mojeek Web Search API vs Valyu](https://www.anchorterminal.com/compare/mojeek-vs-valyu.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- [Parallel Search and Task APIs vs Valyu](https://www.anchorterminal.com/compare/parallel-search-api-vs-valyu.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 You.com APIs](https://www.anchorterminal.com/compare/perplexity-search-api-vs-you-com-api.md)\n- [SearchAPI.io vs Valyu](https://www.anchorterminal.com/compare/searchapi-io-vs-valyu.md)\n- [SerpApi vs Valyu](https://www.anchorterminal.com/compare/serpapi-vs-valyu.md)\n- [Serper vs Valyu](https://www.anchorterminal.com/compare/serper-vs-valyu.md)\n- [SERPHouse vs Valyu](https://www.anchorterminal.com/compare/serphouse-vs-valyu.md)\n- [SerpKite vs Valyu](https://www.anchorterminal.com/compare/serpkite-vs-valyu.md)\n- [Tavily API + MCP vs Valyu](https://www.anchorterminal.com/compare/tavily-mcp-vs-valyu.md)\n- [TinyFish Search vs Valyu](https://www.anchorterminal.com/compare/tinyfish-search-vs-valyu.md)\n- [Valyu vs You.com APIs](https://www.anchorterminal.com/compare/valyu-vs-you-com-api.md)\n- [Arcmira vs Perplexity Search API](https://www.anchorterminal.com/compare/arcmira-vs-perplexity-search-api.md)\n- [Arcmira vs Valyu](https://www.anchorterminal.com/compare/arcmira-vs-valyu.md)\n- [Grep AI vs Perplexity Search API](https://www.anchorterminal.com/compare/grep-ai-vs-perplexity-search-api.md)\n- [Grep AI vs Valyu](https://www.anchorterminal.com/compare/grep-ai-vs-valyu.md)\n- [Liner Search MCP vs Perplexity Search API](https://www.anchorterminal.com/compare/liner-mcp-vs-perplexity-search-api.md)\n- [Liner Search MCP vs Valyu](https://www.anchorterminal.com/compare/liner-mcp-vs-valyu.md)\n- [SpecStream vs Valyu](https://www.anchorterminal.com/compare/specstream-vs-valyu.md)\n- [Fetch (MCP reference server) vs Valyu](https://www.anchorterminal.com/compare/fetch-reference-server-vs-valyu.md)\n- [NewsCatcher vs Valyu](https://www.anchorterminal.com/compare/newscatcher-vs-valyu.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "attributionRequired": true, "credit": "CC BY 4.0, credit Anchor Terminal and link the page or API address you took it from (https://www.anchorterminal.com/terms/#data)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-11-07", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.7", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run", "terms": "https://www.anchorterminal.com/terms/#data" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Perplexity Search API vs Valyu", "url": "" } ], "description": "Perplexity Search and Valyu score within a point of each other for web search, 70.2 and 69.3 out of 100. 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