{"uid":"cap_xEBR-vSprDZ20AFXpDqCs","slug":"x402-catalog-search-1987df69","name":"x402 Catalog Search","description":"Seven account-free paid tools for source integrity, x402 catalog search, preflight, liveness, routing, price drift, and batch verification.","url":"https://bj7e26lfpo4fthvr35hczdipby.srv.us/v1/x402-search","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["q"],"properties":{"q":{"type":"string","description":"What capability you are looking for"},"limit":{"type":"string","description":"Max results, 1-25, default 10"}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"query":"fcc license lookup","results":[{"network":"eip155:8453","sources":["bazaar","toll402"],"resource":"https://api.govparse.io/v1/fcc/licenses/search","price_usdc":1.25,"description":"FCC ULS licence search by company"}],"sources":[{"ok":true,"catalog":"bazaar","returned":6,"latency_ms":761,"upstream_filtered":true},{"ok":true,"catalog":"toll402","returned":0,"latency_ms":1014,"upstream_filtered":true}],"total_unique":6,"searchVersion":"1.0"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_S3UB6WNR6cPr5kcNq2jkf","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Searches across multiple x402 paid-API catalogs to discover endpoints matching a natural language capability query.","exampleAgentPrompt":"Search the x402 catalog for any available paid endpoints that do FCC license lookup and show me up to 10 results with their prices.","exampleUseCases":[{"title":"Discovering data enrichment APIs","prompt":"Search the x402 catalog for any endpoints that can do company data enrichment or business information lookup — show me the top 10 results and their prices."},{"title":"Finding image generation tools","prompt":"Can you search across x402 catalogs for paid APIs that do image generation from a text prompt? Show me up to 15 results."},{"title":"Locating email validation services","prompt":"I need an API that validates email addresses — search the x402 catalog for anything matching email validation and give me the top 5 options."}],"resultDescription":"A JSON object containing a list of matching endpoints (each with resource URL, price in USDC, description, network chain ID, and discovery sources), per-catalog metadata showing how many results each upstream catalog returned and their latency, the total number of unique results, and the search schema version used.","failureModes":["Missing required query parameter 'q' returns a 400 or schema validation error","Payment not provided or insufficient USDC causes a 402 Payment Required response","Upstream catalogs (bazaar, toll402) may be unavailable, returning partial or empty results","Limit parameter out of range (outside 1-25) may be rejected or clamped","Query too broad may return up to 25 low-relevance results requiring further filtering"],"whenToPreferThis":"Use this endpoint when an AI agent needs to dynamically discover which x402 paid APIs exist for a given capability at runtime, especially when the target service is not already known. It aggregates multiple x402 catalogs (bazaar, toll402, etc.) in a single call, making it more comprehensive than querying any single catalog. Prefer this over hardcoded endpoint lists when the space of available x402 tools is evolving or unknown.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:39:47.199Z","isFirstParty":false}