{"uid":"cap_5LQ1vRKrVEJ_WcPuW6Er4","slug":"preflight-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-4cb2c0b9","name":"A2A, MCP & HTTP 402 Endpoint SLA Compliance Auditor","description":"Audits any remote agent or MCP URL for JSON-RPC compliance, latency SLA, OpenAPI schema, and HTTP 402 settlement headers. (Live x402 v2, IETF MPP & MCP endpoint at https://preflight.agentdiet.dev/v1/paywall-scanner)","url":"https://preflight.agentdiet.dev/v1/paywall-scanner?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","required":["url"],"properties":{"url":{"type":"string","minLength":1,"description":"Target A2A, MCP, or x402 service URL to audit for protocol compliance"}}},"responseSchema":{"type":"object"},"example":null,"exampleRequest":null,"tags":[],"displayCostAmount":"0.01","displayCostAsset":"USD","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":"mpp","network":"tempo","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_iYxpYrpFNN_u1PGMGwLhE","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"preflight.agentdiet.dev","brandSlug":"preflight-agentdiet-dev-mpp","brandBaseUrl":"https://preflight.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Audits any A2A agent, MCP, or x402 service URL for JSON-RPC compliance, latency SLA, OpenAPI schema validity, and HTTP 402 payment settlement headers.","exampleAgentPrompt":"Can you audit https://myagent.example.com/mcp for JSON-RPC compliance, check its latency SLA, validate the OpenAPI schema, and tell me if the HTTP 402 payment headers are correctly set up?","exampleUseCases":[{"title":"Pre-deployment MCP server compliance check","prompt":"Before I go live, can you audit https://api.mycompany.com/mcp and tell me if it's fully JSON-RPC compliant and whether its HTTP 402 payment headers look correct?"},{"title":"Third-party A2A agent SLA verification","prompt":"I'm about to integrate a vendor's agent at https://vendor.ai/a2a/endpoint — can you run a compliance audit on it to check latency SLA and OpenAPI schema validity before I commit?"},{"title":"x402 paywall configuration debugging","prompt":"My x402 paywall at https://preflight.agentdiet.dev/v1/my-service doesn't seem to be accepting payments correctly — can you scan it and tell me what's wrong with the HTTP 402 settlement headers?"}],"resultDescription":"Returns a structured compliance report covering JSON-RPC conformance, measured latency vs SLA thresholds, OpenAPI schema validation results, and HTTP 402/x402 settlement header presence and correctness for the target URL.","failureModes":["Target URL is unreachable or returns a non-2xx/402 status — audit fails with connectivity error","Malformed or missing URL parameter — returns validation error","Target endpoint does not expose any recognizable protocol (no JSON-RPC, no OpenAPI, no 402 headers) — returns partial or empty compliance report","Network timeout if target endpoint is slow — latency SLA check may fail or be inconclusive","Target blocks external probes or requires authentication — compliance checks may be incomplete"],"whenToPreferThis":"Use this endpoint when you need to programmatically verify that an A2A agent, MCP server, or x402-enabled API URL is protocol-compliant before integration, deployment, or marketplace listing — especially when you need to check JSON-RPC compliance, latency SLA, OpenAPI schema validity, and HTTP 402 payment header setup in a single call. Prefer it over manual inspection or generic HTTP testing tools when working in agent-to-agent or payment-gated API ecosystems.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:26:34.652Z","isFirstParty":false,"canonicalSlug":"preflight-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-3bfc8ad7"}