{"uid":"cap_imIfweF_5D8WMWWJ0kXpQ","slug":"p0-agent-economy-index-identifier-based-discovery-fbe6cdab","name":"P0 Agent Economy Index - Identifier-Based Discovery","description":"An open index of the machine-to-machine (agent) economy. x402 routes: ranked discovery over the live x402 service market, every indexed service scored by real 30-day calls and paying-wallet bounds, with a receipt naming the snapshot hash and scoring revision. /economy routes, for Tempo MPP, Virtuals ACP, Olas, Masumi, ERC-8004 agent registries, Solana agent registries, Base agent contracts and MCP servers (Official MCP Registry): each protocol's published figures (agent or server counts, transactions or payment events; payers and USD volume only where the source publishes them: payers for x402 and Tempo MPP, USD volume for x402 and Virtuals ACP), each with its unit, window and source; units differ, so totals are not summed. L402 and per-service MPP listings are not covered.","url":"https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-identifier?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"count":25,"query":{"by":"payers","op":"top","limit":25,"where":{"tag":"identifier"}},"route":"/in-identifier","matched":359,"services":[{"name":"forecast api","network":"eip155:8453","calls30d":310,"priceUsd":0.01,"resource":"https://api.example.com/forecast","payers30d":42}],"declaredBy":"agent","generatedAt":"2026-09-17T12:00:00.000Z"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.032","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":"$0.008/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_mSD6KkfefeSCFzxCTENvD","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.008","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns top x402 services ranked by payers or calls, filtered by a tag or identifier, with 30-day usage metrics and snapshot provenance.","exampleAgentPrompt":"Show me the top 25 x402 services tagged 'identifier' ranked by number of unique payers over the last 30 days, and tell me which snapshot hash this data came from.","exampleUseCases":[{"title":"Discover top-paying agent services","prompt":"Which x402 services in the agent economy have the most unique paying wallets over the past 30 days? Show me the top 25 ranked by payers."},{"title":"Filter services by specific identifier","prompt":"I want to find the most-used x402 APIs tagged as 'forecast' — give me the top results sorted by 30-day call volume along with their prices and network."},{"title":"Audit agent economy snapshot","prompt":"Pull the latest ranked discovery snapshot for x402 services in the agent economy and tell me what the snapshot hash and scoring revision are so I can verify the data provenance."}],"resultDescription":"A JSON object containing the total matched service count, the query parameters used, a list of ranked services (each with name, network, 30-day calls, price in USD, resource URL, and 30-day payer count), the declaring entity, and a timestamp with snapshot hash for provenance verification.","failureModes":["Invalid or missing tag parameter returns empty or error response","Snapshot hash unavailable if index has not been refreshed recently","Result set may be empty if no services match the identifier","Payment of 0.032 USDC required per call — missing payment header returns 402","Rate limiting or worker unavailability may cause transient failures"],"whenToPreferThis":"Use this endpoint when you need ranked, real-usage-backed discovery of x402 services filtered by a specific identifier or tag, and you need provenance (snapshot hash + scoring revision). Prefer this over generic API directories when you want machine-to-machine economy data grounded in actual 30-day payment and call metrics rather than self-reported figures.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-28T12:35:08.444Z","isFirstParty":false,"canonicalSlug":"p0-agent-economy-index-identifier-based-discovery-fbe6cdab"}