{"uid":"cap_1-PaDoMxnGFzqf2o7_kRS","slug":"preflight-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-98b09f4e","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/x402-verifier)","url":"https://preflight.agentdiet.dev/v1/x402-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_F1-lUXF0JK5AOeQgSW2nH","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 agent, 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://myagent.example.com/mcp to check if it's JSON-RPC compliant, meets latency SLA, has a valid OpenAPI schema, and returns proper HTTP 402 payment headers?","exampleUseCases":[{"title":"Verify x402 payment header compliance","prompt":"Run a compliance audit on https://api.myservice.dev/v1/tool — I need to know if it's returning valid HTTP 402 x402 settlement headers and whether the payment negotiation flow is working correctly."},{"title":"MCP server protocol conformance check","prompt":"Can you check https://mcp.mydomain.com/server to see if it's fully JSON-RPC compliant and whether its OpenAPI schema looks correct before I publish it to a tool registry?"},{"title":"Pre-launch A2A agent SLA audit","prompt":"Before we go live, audit https://agent.company.io/a2a for latency SLA compliance and any protocol issues — I want to make sure it passes all the A2A spec checks."}],"resultDescription":"Returns a structured audit report containing JSON-RPC compliance pass/fail, measured latency against SLA thresholds, OpenAPI schema validation results, and HTTP 402 settlement header inspection details for the target URL","failureModes":["Target URL is unreachable or returns a network error — audit fails with connectivity error","Target URL is not an A2A/MCP/x402 endpoint — report may show all checks as non-compliant","Malformed or missing URL parameter — returns validation error","Target endpoint is too slow to respond — latency SLA check marked as failed","Target blocks external probes — partial results or timeout errors returned"],"whenToPreferThis":"Choose this endpoint when you need to programmatically verify that an A2A agent, MCP server, or x402-enabled API meets protocol standards before deploying it, listing it in a registry, or integrating it into an agent swarm. Especially valuable for pre-launch compliance checks, CI/CD pipeline validation of agentic services, and confirming HTTP 402 payment header correctness for x402 v2 monetized endpoints.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:24:46.729Z","isFirstParty":false,"canonicalSlug":"preflight-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-3bfc8ad7"}