{"uid":"cap_emZV9Rze9-3WkSvRodG0T","slug":"p0-agent-economy-index-in-vat-vat-tagged-x402-service-leaderboard-b11d0ffb","name":"P0 Agent Economy Index — /in-vat VAT-Tagged x402 Service Leaderboard","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-vat?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":"vat"}},"route":"/in-vat","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":"$0.048/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.048","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.048","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_HHKHz_HHj_TC7jVEkxUpY","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.048","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 'vat', ranked by 30-day unique paying wallets, with call counts, price, and payer data in a snapshot-receipted response.","exampleAgentPrompt":"Show me the top x402 services tagged 'vat', ranked by how many unique paying wallets they've had in the last 30 days — I want to see names, prices, call counts, and payer numbers.","exampleUseCases":[{"title":"Scout high-traction VAT services for integration","prompt":"Which VAT-tagged x402 services have had the most unique paying wallets over the last 30 days? Give me the top results with their call volumes and prices so I can decide which ones are worth integrating."},{"title":"Monitor agent economy VAT segment activity","prompt":"Pull the current leaderboard of vat-tagged services on the x402 network — I want to track which ones are gaining paying agents month over month and compare their activity levels."},{"title":"Competitive research on VAT-tagged micropayment APIs","prompt":"I'm researching which vat-tagged micropayment APIs are most popular with agents right now — can you get me the ranked list with payer counts, call volumes, and per-call prices from the x402 index?"}],"resultDescription":"A JSON object containing the ranked list of up to 25 (default) x402 services tagged 'vat', ordered by 30-day unique paying wallets. Each entry includes service name, network (e.g. eip155:8453), 30-day call count, price in USD, resource URL, and 30-day payer count. The response also includes the total matched service count, the query parameters used, the route, a generatedAt timestamp, and a declaredBy field indicating the source type.","failureModes":["No services match the 'vat' tag — returns empty services array with matched:0","Snapshot data is stale if the indexer has not run recently — generatedAt timestamp may be hours old","Payment of $0.048 USDC not received or rejected — 402 response blocking access","Invalid or missing query parameters may return unexpected results or a 400 error","Cloudflare Worker timeout or cold-start latency under high load"],"whenToPreferThis":"Choose this endpoint when you specifically need to discover or rank x402 services carrying the 'vat' tag by real 30-day paying-wallet activity. It is the right choice for agent-economy market research, integration scouting, or competitive analysis within the vat-tagged segment of the x402 service market. It is not appropriate for browsing non-vat tags, accessing L402 listings, or querying agent registries (Olas, Masumi, Virtuals ACP, etc.) — those are covered by separate /economy routes on the same host.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T12:37:33.234Z","isFirstParty":false,"canonicalSlug":"p0-agent-economy-index-in-vat-vat-tagged-x402-service-leaderboard-b11d0ffb"}