{"uid":"cap_tOSEexrqtvEeCgycwKX6N","slug":"preflight-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-d5f498d3","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_uNJ0lzXh2HG6g5Bv3GXSy","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 agent, MCP, or x402 URL for JSON-RPC compliance, latency SLA adherence, OpenAPI schema validity, and HTTP 402 payment settlement headers","exampleAgentPrompt":"Run a full compliance audit on https://myagent.example.com/mcp — check it for JSON-RPC correctness, latency SLA, OpenAPI schema validity, and whether its HTTP 402 payment headers are properly configured.","exampleUseCases":[{"title":"Pre-deployment MCP server validation","prompt":"Before I add this MCP server at https://tools.mycompany.ai/v1/mcp to our agent swarm, can you audit it for JSON-RPC compliance, latency SLA, and HTTP 402 settlement headers so I know it's ready?"},{"title":"Third-party A2A agent vetting","prompt":"I'm about to integrate a vendor's A2A agent at https://partner.example.com/agent — can you run a protocol compliance check on it to see if it passes JSON-RPC and OpenAPI schema validation?"},{"title":"x402 payment endpoint preflight check","prompt":"Can you audit https://api.myservice.dev/v1/pay to confirm that the HTTP 402 x402 payment headers are set up correctly and the endpoint is SLA-compliant before we go live?"}],"resultDescription":"Returns a structured compliance report covering JSON-RPC protocol adherence, measured latency vs. SLA thresholds, OpenAPI schema validity findings, and the status of HTTP 402 / x402 settlement headers for the audited endpoint URL.","failureModes":["Target URL is unreachable or times out — audit fails with a connectivity error","URL points to a non-agent or non-MCP service — compliance checks return not-applicable or fail","Malformed or missing URL parameter — returns 400 bad request","Target service blocks external probes — partial or empty audit results","x402 headers absent on a non-payment endpoint — 402 check returns not-configured"],"whenToPreferThis":"Choose this endpoint when you need a structured, multi-dimensional compliance check specifically covering JSON-RPC correctness, latency SLA, OpenAPI schema, and HTTP 402 payment headers on an A2A, MCP, or x402 service — particularly during pre-deployment validation, third-party agent vetting, or ongoing protocol conformance monitoring. Prefer this over generic uptime monitors or ping tools when protocol-level compliance details matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:26:22.514Z","isFirstParty":false,"canonicalSlug":"preflight-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-3bfc8ad7"}