{"uid":"cap_y6489I8UkrvSF_McpfCEb","slug":"onchainexpat-x402-review-endpoint-571fa917","name":"OnchainExpat x402 Review Endpoint","description":"Pay-per-request AI, crypto, proxy, and utility APIs using x402 protocol","url":"https://x402.onchainexpat.com/api/x402-review/endpoint","method":"POST","headers":{},"bodySchema":{"type":"object","required":["agent_id","endpoint_url","feedback_auth_signature"],"properties":{"chain":{"type":"string","description":"Chain where agent is registered (default: base)"},"agent_id":{"type":"integer","description":"ERC-8004 agent ID"},"endpoint_url":{"type":"string","description":"Full URL of the x402 endpoint to review, including https:// scheme (e.g. 'https://api.example.com/api/x402-tools/weather/current')"},"feedback_auth_signature":{"type":"string","description":"Pre-authorization signature from the agent"}}},"responseSchema":{"type":"object","properties":{"score":{"type":"integer"},"metrics":{"type":"object"},"tx_hash":{"type":"string"},"scan_url":{"type":"string"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.25","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":"$0.25/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.25","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.25","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ZF9aHpaUlWtCq5HPcW0yP","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.25","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Submit a review or feedback object to the x402-powered review endpoint for processing via pay-per-request protocol","exampleAgentPrompt":"Submit a review to the OnchainExpat x402 review endpoint — I want to evaluate this endpoint and post my review data, paying the $0.25 USDC per-request fee via the x402 protocol.","exampleUseCases":null,"resultDescription":"A JSON response confirming the review was processed, potentially including review status, confirmation details, or evaluation output for the submitted review payload.","failureModes":["Payment not provided or insufficient USDC balance — returns 402 Payment Required","Invalid or malformed review payload — returns 400 Bad Request","x402 payment protocol handshake failure — returns payment error","Endpoint temporarily unavailable — returns 503 or timeout","Missing required fields in request body — returns validation error"],"whenToPreferThis":"Choose this endpoint when you need to submit a review or evaluation payload to the OnchainExpat x402 ecosystem using the x402 micropayment protocol with USDC. Prefer this over traditional REST review APIs when operating in a crypto-native, pay-per-request agent workflow where each call is settled on-chain.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:06:31.803Z","isFirstParty":false}