{"uid":"cap_K6jbsICysh82cMEzA2sF-","slug":"agent-guard-x402-endpoint-reputation-check-fd339445","name":"Agent Guard x402 Endpoint Reputation Check","description":"Safety and trust layer for AI agents: PII redaction, scam/phishing text scan, EVM/Solana address validation, IBAN checks, JSON repair, deep on-chain wallet risk scoring, x402 counterparty endpoint reputation checks. Free discovery: /openapi.json, /.well-known/x402, /v1/capabilities, /mcp (tools/list). REST + MCP. Pay with USDC via x402 — no API keys.","url":"https://agent-guard.annushka1190.workers.dev/v1/x402/endpoint-check","method":"POST","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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":["resourceUrl"],"properties":{"resourceUrl":{"type":"string","description":"x402 resource URL to probe (body.resourceUrl or body.url)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"ok":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_-nfH3hQMRM-Pd1CfjEZ2W","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks the reputation and x402 compliance of a counterparty HTTP endpoint before an AI agent sends it a payment or sensitive data","exampleAgentPrompt":"Before you pay that x402 endpoint at https://some-tool.example.com/v1/some-tool using a POST request, can you run a reputation check on it and tell me the risk score and whether it's actually x402 compliant?","exampleUseCases":[{"title":"Pre-payment endpoint vetting","prompt":"I'm about to let my agent automatically pay this x402 endpoint at https://data-provider.example.com/v1/lookup via POST — can you first check its reputation, risk score, and whether it's actually x402 compliant before we send any USDC?"},{"title":"Building a safe agent tool registry","prompt":"I'm curating a list of x402 endpoints for my agent to use. Can you check https://ai-tools.example.com/v1/translate with a POST method and tell me if it has any red flags, what its risk score is, and whether it's reachable?"},{"title":"Auditing an unfamiliar API before integration","prompt":"Someone recommended I use https://unknown-agent-service.io/api/convert as a POST endpoint in my agent pipeline — can you run a safety and reputation check on it so I know if it's trustworthy before I wire it in?"}],"resultDescription":"Returns a JSON object with the endpoint URL, a numeric risk score (0–1), a boolean indicating reachability, a boolean for x402 compliance, a count of accepted payment methods, and an array of red flags (e.g. suspicious patterns, unreachable host, non-compliant responses).","failureModes":["Endpoint URL is unreachable — riskScore elevated, reachable: false","Malformed input schema — 400 error if required fields missing","Non-x402 endpoint returns no compliance data — x402Compliant: false","Endpoint has no red flags but is new/unknown — risk score may be inconclusive","Payment fails via x402 — endpoint call not executed"],"whenToPreferThis":"Use this endpoint when your AI agent is about to call or pay an unfamiliar x402-enabled API and you need a quick reputation and safety check before proceeding. It is purpose-built for the x402 ecosystem and provides agent-specific trust signals (risk score, compliance flag, red flags) that generic URL scanners do not offer.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:43:48.877Z","isFirstParty":false}