{"uid":"cap_qxcZU5mxJnc-0Dua5WsUD","slug":"p0-agent-economy-index-writing-sector-x402-rankings-d30753eb","name":"P0 Agent Economy Index – Writing Sector x402 Rankings","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-sector-writing?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":"sector-writing"}},"route":"/in-sector-writing","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_lWf8QhJ1AHJBKsTnu03KC","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 'sector-writing', ranked by 30-day unique paying wallets, with call counts, pricing, and resource URLs.","exampleAgentPrompt":"Show me the top 25 writing services in the x402 market ranked by unique paying wallets over the last 30 days, so I can pick the most-used agent-callable writing API.","exampleUseCases":[{"title":"Find best-used writing APIs for agent","prompt":"Which writing-sector x402 services have the most unique paying wallets over the past 30 days? Give me the top 25 so I can wire my agent into the most popular one."},{"title":"Benchmark writing API pricing and demand","prompt":"Pull the current ranked list of sector-writing x402 services — I want to see their call counts, payer counts, and prices so I can compare demand versus cost before integrating one."},{"title":"Audit agent economy writing layer","prompt":"What does the live x402 writing-sector market look like right now? Show me all ranked services with their network, resource URLs, and 30-day activity stats."}],"resultDescription":"A JSON object containing a ranked list of up to 25 x402 services tagged 'sector-writing', each with name, network chain ID, 30-day call count, price in USD, resource URL, and 30-day unique payer count. Also includes total matched count, the query parameters used, the route, a 'declaredBy' field, and a 'generatedAt' ISO timestamp indicating the snapshot moment.","failureModes":["No services indexed for sector-writing tag returns empty services array with count 0","Stale snapshot if underlying index hasn't refreshed recently — check generatedAt timestamp","HTTP 402 if payment header is missing or USDC payment of $0.008 not attached","Service unavailable if Cloudflare Worker is down or cold-starting","Malformed response if index data pipeline has an upstream error"],"whenToPreferThis":"Use this endpoint when you need a ranked, real-usage-backed discovery of x402 writing-sector services — specifically when you want ranking by actual paying wallets rather than self-declared metadata. Prefer this over general API directories or MCP registries when working within the x402 micropayment ecosystem and need writing-domain services with verified 30-day activity signals.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T18:45:58.370Z","isFirstParty":false,"canonicalSlug":"p0-agent-economy-index-writing-sector-x402-rankings-d30753eb"}