{"uid":"cap_-vPAs4_MTAdXXgqeD40lI","slug":"agentaudit-x402-service-discovery-a1c5d333","name":"AgentAudit x402 Service Discovery","description":"x402 services ranked by 30-day on-chain settlement volume, optionally by category.","url":"https://agentaudit.waltsoft.net/v1/discover?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{"category":{"enum":["all","ai","search","data","crypto","finance","security","social","media","geo","dev"],"type":"string","description":"Seller category (keyword match on Bazaar descriptions), default all"}}}}},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/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_zqUDhlh8x1yD9aoHKRrHT","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns x402-compatible services ranked by 30-day on-chain settlement volume, with optional category filtering.","exampleAgentPrompt":"Show me the top x402 services ranked by 30-day on-chain settlement volume — just the AI category please.","exampleUseCases":[{"title":"Finding top AI x402 APIs","prompt":"Which x402 AI services have seen the most on-chain settlement volume over the last 30 days? Give me the ranked list."},{"title":"Discovering popular crypto x402 services","prompt":"I want to find the most actively used x402 services in the crypto category — can you pull the ranking by settlement volume?"},{"title":"General x402 service leaderboard","prompt":"Pull up the full x402 service leaderboard ranked by 30-day on-chain settlement volume across all categories."}],"resultDescription":"A ranked list of x402-compatible services ordered by 30-day on-chain settlement volume, including service metadata such as name, category, and volume figures. Results can be filtered to a specific category (ai, search, data, crypto, finance, security, social, media, geo, dev) or returned for all categories.","failureModes":["Invalid category enum value returns an error or empty result","No services found for a niche category returns an empty list","Network or upstream data latency may cause stale rankings","Payment of 0.01 USDC required; unpaid requests return 402 status","Rate limiting if too many requests are made in a short period"],"whenToPreferThis":"Use this endpoint when you need to discover and rank x402-compatible APIs by real on-chain usage rather than self-reported metrics or static listings. It's the right choice when an agent needs to identify the most actively transacted x402 services in a specific vertical (e.g., AI, finance, geo) or across all categories, providing a trust signal backed by verifiable settlement data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:30:17.706Z","isFirstParty":false,"canonicalSlug":"agentaudit-x402-service-discovery-a1c5d333"}