{"uid":"cap_gnGG2JUWloScHJCSDUYlB","slug":"preflight-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-69839fa5","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-check)","url":"https://preflight.agentdiet.dev/v1/paywall-check?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_AJeZrkc9L9Xh2ZnIvoolc","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, 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://mcp.example.com/tools for JSON-RPC compliance, latency SLA, and HTTP 402 payment header support and tell me if it's fully protocol-compliant?","exampleUseCases":[{"title":"Validate new MCP server before integration","prompt":"Before I add this MCP server at https://mcp.partner.io/v1/tools to my agent swarm, can you check whether it's JSON-RPC compliant, meets latency SLA, and has valid HTTP 402 settlement headers?"},{"title":"Debug x402 paywall compliance issues","prompt":"My x402 paywall at https://api.myservice.dev/v1/data keeps failing agent payment flows — can you audit it for HTTP 402 header compliance and tell me what's wrong with its protocol setup?"},{"title":"Spot-check third-party A2A agent endpoint","prompt":"I'm evaluating this third-party A2A agent at https://agent.vendor.ai/api — can you run a full SLA and protocol compliance audit on it, including OpenAPI schema validation and JSON-RPC conformance?"}],"resultDescription":"Returns a compliance report object covering JSON-RPC conformance status, measured latency against SLA thresholds, OpenAPI schema presence and validity, and HTTP 402 payment settlement header inspection for the target URL.","failureModes":["Target URL unreachable or times out — returns connectivity error","Target URL returns non-standard protocol responses causing incomplete audit","Malformed or empty URL input returns validation error","Target service blocks probe requests returning 403 or firewall errors","Partial compliance data if target endpoint only partially implements protocols"],"whenToPreferThis":"Choose this endpoint when you need to verify that an A2A agent, MCP server, or x402 paywall URL is correctly implementing JSON-RPC, OpenAPI, latency SLA, and HTTP 402 payment protocols before integrating it into an agent pipeline or swarm. Ideal for due-diligence audits of third-party agent endpoints, debugging payment flow failures, or confirming compliance before production deployment.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:21:45.702Z","isFirstParty":false,"canonicalSlug":"preflight-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-3bfc8ad7"}