{"uid":"cap_z3TUzjdbsnjWsE9a-hRso","slug":"agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-auditor-a1b5a05c","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://agentdiet.dev/v1/preflight)","url":"https://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_VkXbuy6OD31bUhcXpJ0Yu","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"agentdiet.dev","brandSlug":"agentdiet-dev-mpp","brandBaseUrl":"https://agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Audits a remote A2A agent, MCP server, or x402 URL for JSON-RPC compliance, latency SLA, OpenAPI schema validity, and HTTP 402 settlement header correctness","exampleAgentPrompt":"Can you audit https://myagent.example.com/api for A2A and MCP protocol compliance — I want to know if its JSON-RPC is valid, whether it passes latency SLA, and whether the HTTP 402 settlement headers are correctly configured?","exampleUseCases":[{"title":"Pre-launch MCP server compliance check","prompt":"Before I go live, audit https://myservice.io/mcp for full MCP and JSON-RPC compliance and tell me if the latency SLA and HTTP 402 headers are properly set up."},{"title":"Diagnosing x402 payment header failures","prompt":"My x402-gated API at https://api.myapp.dev/v2/query keeps rejecting payments — can you run a compliance audit on it to see if the HTTP 402 settlement headers are correctly configured?"},{"title":"Third-party agent endpoint vetting","prompt":"I'm thinking of integrating with the agent at https://partner-agent.ai/a2a — can you audit it for A2A protocol compliance, OpenAPI schema validity, and latency SLA before I commit?"}],"resultDescription":"Returns a compliance report object covering: JSON-RPC protocol conformance, measured latency against SLA thresholds, OpenAPI schema validation results, and HTTP 402 / x402 settlement header correctness for the target URL.","failureModes":["Target URL is unreachable or times out — audit fails with connectivity error","Invalid or malformed URL provided — validation error returned","Target URL does not expose any recognizable A2A/MCP/x402 protocol — partial or empty compliance report","Remote endpoint returns unexpected non-standard responses — compliance checks may be inconclusive","Payment failure for the $0.01 per-call fee — request rejected with 402"],"whenToPreferThis":"Use this endpoint when you need to verify that a specific remote URL correctly implements A2A, MCP, or x402/HTTP 402 protocols — especially for pre-integration vetting, debugging payment-gated APIs, or confirming SLA and JSON-RPC compliance before deploying agent infrastructure. Prefer this over generic HTTP health-check tools when the audit needs to cover protocol-specific concerns like x402 settlement headers or JSON-RPC schema conformance.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:23:14.940Z","isFirstParty":false,"canonicalSlug":"agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-auditor-a1b5a05c"}