{"uid":"cap_-1UA9Mbu9fx3cnUcNgCn6","slug":"httpay-xyz-x402-ecosystem-index-1d6f3d05","name":"httpay.xyz x402 Ecosystem Index","description":"Complete x402 ecosystem index — all known services, endpoints, prices, facilitators, and price comparisons. THE discovery endpoint for AI agents finding x402 services.","url":"https://httpay.xyz/api/x402-index","method":"POST","headers":{},"bodySchema":null,"responseSchema":{"type":"json","example":{"description":"Complete x402 ecosystem index — all known services, endpoints, prices, facilitators, and price comparisons. THE discovery endpoint for AI agents finding x402 services."}},"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_QuINX8VCt5jlod0RVM7g7","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":"Returns a complete index of all x402 pay-per-call services, endpoints, prices, and facilitators across the ecosystem for AI agent discovery","exampleAgentPrompt":"Show me the full catalog of x402 pay-per-call APIs available on Base — I want to see all services, what they cost in USDC, and which ones cover token intelligence or DeFi yields so I can pick one to call.","exampleUseCases":null,"resultDescription":"A comprehensive JSON index listing all known x402 ecosystem services including native endpoints and Universal Gateway proxied services, with pricing, facilitator details, and price comparisons — effectively a directory of every pay-per-call API available via the x402 protocol on Base.","failureModes":["Payment not included or invalid x402 USDC payment on Base returns 402 Payment Required","Network issues reaching httpay.xyz return 5xx errors","Index may be stale if underlying services have changed since last crawl"],"whenToPreferThis":"Use this endpoint when an AI agent needs to discover what x402-compatible APIs exist before deciding which one to call — it is the canonical discovery/index endpoint for the entire x402 ecosystem, covering 300+ services with pricing data, making it ideal for dynamic service selection, cost comparison, and capability discovery without needing pre-existing API keys or subscriptions.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:47:45.817Z","isFirstParty":false}