{"uid":"cap_q3bht1sXsYWuZOoPNnNDN","slug":"preflight-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-ca680a79","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/mpp-verifier)","url":"https://preflight.agentdiet.dev/v1/mpp-verifier?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_cudxmUkHHKrfiKqgxHVMz","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 a remote A2A agent, MCP server, or x402 HTTP endpoint for JSON-RPC compliance, latency SLA, OpenAPI schema validity, and HTTP 402 payment settlement headers.","exampleAgentPrompt":"Can you audit my MCP server at https://my-agent.example.com/mcp to check if it's JSON-RPC compliant, meets latency SLA, and correctly returns HTTP 402 payment headers?","exampleUseCases":[{"title":"Pre-launch MCP server compliance check","prompt":"Before I go live, can you audit https://api.mybot.dev/mcp and tell me if it passes JSON-RPC compliance, OpenAPI schema validation, and HTTP 402 header checks?"},{"title":"Verify x402 payment header setup","prompt":"I set up HTTP 402 x402 payment gating on https://payments.myservice.io/v1/agent — can you audit it to confirm the settlement headers are correctly configured and IETF MPP compliant?"},{"title":"SLA latency audit for A2A agent endpoint","prompt":"Can you probe https://agent.myplatform.com/v1/a2a and tell me if it meets latency SLA requirements and is responding with valid JSON-RPC?"}],"resultDescription":"Returns a structured audit report covering JSON-RPC protocol compliance, latency SLA measurements, OpenAPI schema validity, and HTTP 402 payment settlement header correctness for the submitted endpoint URL.","failureModes":["Target URL is unreachable or returns a network timeout","Target URL is not a valid A2A, MCP, or x402 endpoint — unrecognized protocol","Malformed URL input causes validation error","Target endpoint blocks probes via firewall or rate limiting","Incomplete audit if the endpoint returns unexpected response formats"],"whenToPreferThis":"Use this endpoint when you need to programmatically verify that an A2A agent, MCP server, or x402-gated HTTP service is correctly implementing protocol standards — especially JSON-RPC compliance, HTTP 402 payment settlement headers, OpenAPI schema, and latency SLAs. Prefer this over manual inspection or generic HTTP health-check tools when you specifically need multi-protocol compliance validation in a single call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:26:33.850Z","isFirstParty":false,"canonicalSlug":"preflight-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-3bfc8ad7"}