{"uid":"cap_aR4fP47o3p73XHcG-wjN_","slug":"defi-yield-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-129b6afe","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://defi-yield.agentdiet.dev/v1/preflight)","url":"https://defi-yield.agentdiet.dev/v1/preflight?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_K98qpIIZ3GF7SZYuT8uYU","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"defi-yield.agentdiet.dev","brandSlug":"defi-yield-agentdiet-dev-mpp","brandBaseUrl":"https://defi-yield.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Audits a remote agent, MCP, or x402 URL for JSON-RPC compliance, latency SLA, OpenAPI schema validity, and HTTP 402 payment settlement headers","exampleAgentPrompt":"Can you audit https://my-mcp-server.example.com/rpc for JSON-RPC compliance, check its latency SLA, and tell me whether it has proper HTTP 402 x402 payment settlement headers?","exampleUseCases":[{"title":"Pre-deployment MCP server compliance check","prompt":"Before I go live, can you audit https://staging.myagent.io/mcp and tell me whether it passes JSON-RPC spec, has a valid OpenAPI schema, and is correctly returning HTTP 402 x402 settlement headers?"},{"title":"Third-party A2A vendor due diligence","prompt":"I'm evaluating a vendor's agent API at https://partner-agent.io/v1/a2a — can you run a full protocol compliance audit on it and report back on latency SLA, JSON-RPC validity, and x402 support?"},{"title":"Debugging HTTP 402 payment header issues","prompt":"My agent at https://defi-yield.agentdiet.dev/v1/preflight should be returning HTTP 402 headers for x402 payment flow but clients are complaining — can you run a compliance audit on it and show me what's wrong with the settlement headers?"}],"resultDescription":"Returns a structured compliance report covering JSON-RPC protocol conformance, measured latency against SLA thresholds, OpenAPI schema validity findings, and HTTP 402 / x402 settlement header presence and correctness for the audited URL.","failureModes":["Target URL is unreachable or times out — audit fails with connectivity error","Target URL returns non-standard responses that cannot be parsed for compliance","Missing or malformed 'url' query parameter returns a 400 validation error","Target service blocks probe requests, resulting in incomplete audit data","HTTP 402 headers absent at target leads to failed x402 compliance status"],"whenToPreferThis":"Use this endpoint when you need to verify that a remote A2A agent, MCP server, or x402-enabled service meets protocol standards before integration, deployment, or payment flow activation. It is specifically suited for auditing JSON-RPC compliance, HTTP 402 settlement header correctness, latency SLA, and OpenAPI schema validity in one call — prefer it over generic HTTP probing tools when the target is an AI agent or MCP endpoint.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:49:06.843Z","isFirstParty":false,"canonicalSlug":"defi-yield-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-129b6afe"}