{"uid":"cap_-rZH7dKJEQqB8__i8FL1-","slug":"x402-broker-x402-verifier-04b60a3a","name":"X402-BROKER x402 Verifier","description":"Deterministic B2A/A2A/MCP/x402/MPP/L402 execution and intelligence node at https://mcp-gateway.agentdiet.dev settling in USDC on Base.","url":"https://mcp-gateway.agentdiet.dev/v1/x402-verifier?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","POST"],"type":"string"},"queryParams":{"type":"object","properties":{"url":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"data":{},"status":"ok","roi_proof":{"compression_ratio_pct":91.4}}},"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_v10Gd68ElDZKAebQN2LAb","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":"Verifies and validates x402 payment-gated HTTP endpoints, returning structured proof of access and compression metadata","exampleAgentPrompt":"Can you verify that the x402 endpoint at https://api.example.com/data is live and accessible using a GET request, and show me the compression ratio proof?","exampleUseCases":[{"title":"Validate x402 API before routing","prompt":"Before I route my agent traffic to https://mcp-gateway.agentdiet.dev/v1/some-tool, verify that the endpoint is reachable and passing x402 checks with a GET request."},{"title":"Probe new MCP server endpoint health","prompt":"I just registered a new MCP server at https://my-mcp-server.dev/v1/tool — can you probe it with a GET request to confirm it's live and x402-compliant?"},{"title":"Audit payment-gated API uptime","prompt":"Audit whether the x402-gated API at https://partner-api.example.com/data is currently up and responding correctly to GET requests, and give me the ROI compression proof."}],"resultDescription":"Returns a JSON object with a status field ('ok' or error), a data object containing the endpoint response payload, and a roi_proof object including a compression_ratio_pct value indicating how efficiently the endpoint's data was compressed.","failureModes":["Invalid or unreachable URL returns non-ok status","Unsupported HTTP method causes validation error","Missing required 'url' query parameter causes schema rejection","x402 payment failure returns 402 status","Endpoint timeout or network error returns failure status","Malformed response from target endpoint causes parse error"],"whenToPreferThis":"Use this endpoint when you need to deterministically verify that an x402-gated HTTP endpoint is live, accessible, and returning valid data before routing agent or payment traffic to it. Prefer this over generic HTTP probing tools when you specifically need x402 protocol compliance validation and ROI compression proof metadata.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T12:44:56.090Z","isFirstParty":false,"canonicalSlug":"x402-broker-x402-verifier-04b60a3a"}