{"uid":"cap_rqBrzx-ckB2krpZqDH7qE","slug":"x402-fuchss-app-similar-endpoints-finder-35f2dc1f","name":"x402.fuchss.app Similar Endpoints Finder","description":"Trust, reputation & reliability scores for x402 endpoints. We monitor every listed x402 service 24/7: uptime probes, 402-envelope compliance, price history, and real on-chain USDC settlement volume. Free grade & recommendation for any endpoint, $0.005 for a full data breakdown.","url":"https://x402.fuchss.app/v1/similar","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"limit":{"type":"integer"},"resource":{"type":"string"}}},"responseSchema":{"type":"json","example":{"note":"Semantically similar endpoints that out-score the subject. Similarity is cosine over description embeddings.","count":2,"subject":{"grade":"C","score":61.2,"vectorized":true,"inObservationSet":true},"resource":"https://api.example.com/v1/thing","alternatives":[{"grade":"A","score":88.1,"network":"eip155:8453","resource":"https://api.better.com/v1/thing","amountUsd":0.001,"similarity":0.912,"endpointPage":"https://x402.fuchss.app/endpoint/12345","recommendation":"proceed"}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_GkD8fl14QnQj4HZVFDpQR","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Given an x402 resource URL, returns semantically similar endpoints that have a higher trust score than the subject, helping agents avoid mediocre services","exampleAgentPrompt":"Before I pay https://some-mediocre.example.com/v1/weather, check if there are up to 5 x402 alternatives that do the same thing but have a trust score at least 10 points higher — I only want ones that clearly beat it.","exampleUseCases":null,"resultDescription":"Returns a JSON object with the subject endpoint's trust profile, a count of alternatives found, and an array of up to 25 alternative x402 endpoints. Each alternative includes its trust score (0-100), letter grade (A-F), cosine similarity to the subject's description, advertised price, and a free endpoint-page URL. Same-host siblings and flagged endpoints are excluded. Returns count=0 with an empty array when nothing beats the subject.","failureModes":["Resource URL not in observation set — endpoint returns error or empty result","URL is malformed or missing scheme — validation error","limit out of range (must be 1-25) — rejected with validation error","minScoreDelta set too high — returns empty alternatives list even if similar endpoints exist","Network or service unavailability — HTTP 5xx error","Payment not processed correctly — HTTP 402 returned"],"whenToPreferThis":"Use this endpoint when an AI agent is about to call or pay for an x402 service and wants to verify it's not settling for a low-quality provider. Ideal before committing payment to any x402 endpoint with an unknown or mediocre trust profile. Prefer this over manual browsing or general search when you need semantically-matched, trust-ranked alternatives with scores and pricing in a single call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:35:19.466Z","isFirstParty":false}