{"uid":"cap_WWrd_lJuiwRJ8lM9iYH_C","slug":"x402-market-intel-paid-api-discovery-4322a6f9","name":"x402 Market Intel – Paid API Discovery","description":"Paid API discovery for agents searching verified x402 APIs: rank pay-per-call endpoints by buyer demand, price, registry coverage, schema/examples, seller score, and route reliability. Price 0.25 USDC on Base via x402. Demo: https://x402-market-intel-mcp.mtree.workers.dev/demo/paid_api_discovery. Contact: https://x402-market-intel-mcp.mtree.workers.dev/contact.","url":"https://x402-market-intel-mcp.mtree.workers.dev/v1/x402/paid_api_discovery","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object","properties":{"limit":{"type":"integer","maximum":100,"minimum":1},"query":{"type":"string"},"category":{"type":"string"}}},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"ok":true,"graph":{},"top_resources":[]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.08","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.08/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.08","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.08","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ABOxzaUoHwJJPggK5fywb","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.08","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Ranks and surfaces verified x402 pay-per-call API endpoints by buyer demand, price, registry coverage, schema quality, seller score, and route reliability","exampleAgentPrompt":"Search the x402 paid API directory for the top 5 data enrichment endpoints ranked by buyer demand and seller score, and include their prices and route reliability ratings.","exampleUseCases":null,"resultDescription":"A ranked list of verified x402 pay-per-call API endpoints with scores for buyer demand, price per call, registry coverage, schema/example quality, seller score, and route reliability — enabling the agent to choose the most trusted and relevant paid API for its task.","failureModes":["Payment not included or invalid x402 payment header — returns 402 with payment requirements","Query too vague or no matching endpoints found — returns empty ranked list","Invalid filter parameters — returns 400 with validation error","Network or upstream registry unavailability — returns 503 or timeout"],"whenToPreferThis":"Use this endpoint when an AI agent needs to programmatically discover and compare x402 pay-per-call APIs ranked by real usage signals (buyer demand, revenue proof, seller score) rather than relying on static directories or manual research. Ideal when the agent needs to select the best-fit paid API from multiple candidates based on quality signals.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:31:14.249Z","isFirstParty":false}