{"uid":"cap_z4DgrjilNSABzDtryYHr3","slug":"httpay-agent-directory-curated-api-search-ada7bcca","name":"HTTPay Agent Directory — Curated API Search","description":"Curated static AI agent directory — discover x402-enabled agents and services by capability. See /api/agent-directory for the live on-chain ERC-8004 registry version.","url":"https://httpay.xyz/api/agent-directory-curated","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"q":{"type":"Search term"},"category":{"type":"Filter by capability"}}},"responseSchema":{"type":"json","example":{}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.03","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.03/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_PU5H5OXLsC0N2b5Og8Sdr","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.03","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a curated, searchable directory of pay-per-call APIs available on httpay.xyz, filterable by search term and category","exampleAgentPrompt":"Search the httpay curated API directory for available 'DeFi yields' endpoints so I can find a pay-per-call option that works without an API key.","exampleUseCases":[{"title":"Find web scraping APIs without keys","prompt":"Search httpay for web scraping APIs I can call with USDC micropayments instead of managing API keys."},{"title":"Discover MEV risk analysis tools","prompt":"Look up what MEV risk assessment APIs are available on httpay so I can integrate one into my portfolio monitoring agent."},{"title":"Browse AI tools on pay-per-call","prompt":"Search the httpay directory for AI tool APIs in the category that I can access without needing subscriptions or credentials."}],"resultDescription":"A curated list of matching API endpoints available on httpay.xyz, including their names, descriptions, categories, pricing (in USDC per call), and capability tags — filtered by the provided search term and/or category.","failureModes":["No results returned if search term or category is too specific or misspelled","Empty response if no APIs match the given category filter","Payment failure if USDC balance is insufficient for the $0.03 call fee","Stale directory if recently added APIs haven't been indexed yet"],"whenToPreferThis":"Use this endpoint when an AI agent needs to discover which pay-per-call APIs are available on httpay.xyz before deciding which one to call — especially useful for dynamic capability routing, building agent tool registries, or exploring what x402-compatible services exist for a given domain like DeFi, MEV, or AI tools.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:10:39.668Z","isFirstParty":false}