{"uid":"cap_sUo05BtDtJjV-qLMrrvO2","slug":"httpay-xyz-278a13c9","name":"HTTPay Agent Directory","description":"Query all ERC-8004 registered agents on Base. Filter by capability, paginate with limit/offset. Returns structured agent list with on-chain data and parsed metadata.","url":"https://httpay.xyz/api/agent-directory","method":"POST","headers":{},"bodySchema":null,"responseSchema":{"type":"json","example":{"description":"Query all ERC-8004 registered agents on Base. Filter by capability, paginate with limit/offset. Returns structured agent list with on-chain data and parsed metadata."}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/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_xwpuagl7uGPmvMFBx0c-f","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Query and filter all ERC-8004 registered AI agents on the Base blockchain, paginated and searchable by capability.","exampleAgentPrompt":"Can you search the on-chain ERC-8004 agent directory on Base and show me the first 10 agents that have a 'translation' capability?","exampleUseCases":null,"resultDescription":"Returns a structured list of ERC-8004 registered agents on Base, including on-chain data and parsed metadata for each agent, filtered by the specified capability, with pagination support via limit and offset.","failureModes":["Payment required (402) if no x402 or MPP payment header is provided","Invalid capability filter returns empty list","Offset beyond total agent count returns empty results","Malformed request body returns 400 error","Base RPC unavailability may cause on-chain lookup failures"],"whenToPreferThis":"Use this endpoint when you need to discover AI agents registered on the Base blockchain that conform to the ERC-8004 standard, especially when filtering by specific capabilities or paginating through large agent lists. Prefer this over generic Web2 agent directories when you need verified on-chain agent metadata.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:45:31.328Z","isFirstParty":false}