{"uid":"cap_jElbtAFrbLbGQIeINShBA","slug":"p0-agent-economy-index-science-tag-discovery-390a526f","name":"P0 Agent Economy Index – Science Tag 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-science?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":"science"}},"route":"/in-science","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_fyy9tj_0WAswtUjQdZzaa","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 the top x402 services tagged 'science', ranked by real 30-day payer counts with snapshot receipts","exampleAgentPrompt":"Show me the top science-tagged services in the x402 agent economy, ranked by how many paying wallets used them in the last 30 days, with a verifiable snapshot receipt.","exampleUseCases":[{"title":"Discover top science data APIs","prompt":"Which science-tagged services in the x402 economy have the most paying wallets this month? Give me the top 25 with their prices and resource URLs."},{"title":"Vetting a science API before integration","prompt":"Before I build an agent that calls science APIs, can you pull the current x402 science index so I can see real 30-day call counts and payer numbers for each service?"},{"title":"Monitoring science API market trends","prompt":"Pull the latest snapshot of the science x402 service rankings for me — I want to see which providers are gaining paying users and what prices they're charging."}],"resultDescription":"A JSON object containing a ranked list of up to 25 science-tagged x402 services, each with name, network, 30-day call count, price in USD, resource URL, and 30-day payer count, plus metadata including the total matched count, query parameters used, snapshot generatedAt timestamp, and the declaring entity ('agent').","failureModes":["No science-tagged services indexed yet — returns empty services array with count 0","Snapshot stale or unavailable — generatedAt may lag real-time by up to the indexing window","Invalid or unexpected query parameters silently ignored due to loose input schema","Network timeout from Cloudflare Workers edge — retry with backoff","Service returns 402 if payment header is missing or USDC balance insufficient"],"whenToPreferThis":"Use this endpoint when you specifically need to discover or compare x402-protocol science-tagged services ranked by genuine 30-day paying-wallet activity, with a verifiable snapshot hash. Prefer it over generic API directories when you need agent-economy-native signals (payer counts, real call volumes) rather than self-reported metadata. Do not use if you need non-x402 protocols, L402 listings, or services outside the 'science' tag — sibling endpoints cover other tags and protocols.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T12:48:13.201Z","isFirstParty":false,"canonicalSlug":"p0-agent-economy-index-science-tag-discovery-390a526f"}