{"uid":"cap_sZBhafupx8Fo8XxGtMT9A","slug":"preflight-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-3feac30b","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_AS2GIfk09DB1Zq1IrQVrD","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 URL for JSON-RPC compliance, latency SLA adherence, OpenAPI schema validity, and HTTP 402 payment settlement headers.","exampleAgentPrompt":"Run a compliance audit on https://myagent.example.com/mcp — check its JSON-RPC spec, latency SLA, OpenAPI schema, and whether the HTTP 402 x402 payment headers are properly configured.","exampleUseCases":[{"title":"Pre-integration MCP server preflight check","prompt":"Before I connect this new MCP server at https://tools.mycompany.ai/mcp to my agent swarm, can you audit it for JSON-RPC compliance, latency SLA, and valid OpenAPI schema?"},{"title":"x402 payment header configuration verification","prompt":"I just deployed my x402 payment endpoint at https://api.myapp.dev/v1/service — can you verify that the HTTP 402 settlement headers are correctly set up according to the x402 v2 spec?"},{"title":"Third-party A2A agent reliability audit","prompt":"I'm thinking about integrating a third-party agent at https://agentprovider.io/a2a into my pipeline — can you run a full compliance and SLA check on it so I know if it meets protocol standards before I commit?"}],"resultDescription":"Returns a structured compliance report covering JSON-RPC spec adherence, measured latency against SLA thresholds, OpenAPI schema validity, and HTTP 402 x402 settlement header correctness for the target URL.","failureModes":["Target URL is unreachable or times out — returns connectivity error","Target URL returns non-JSON or malformed responses — compliance checks fail with parse error","Invalid or missing 'url' parameter — returns 400 bad request","Target endpoint does not implement any recognizable protocol — all compliance checks return negative","HTTP 402 headers absent — payment compliance section reports non-compliant"],"whenToPreferThis":"Choose this endpoint when you need a single-shot automated preflight audit of an A2A agent, MCP server, or x402-enabled URL before integration, deployment, or routing decisions. It is particularly valuable when evaluating third-party or community-sourced agent endpoints for protocol correctness and latency fitness, or when debugging HTTP 402 micropayment header configurations against the x402 v2 and IETF MPP standards.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:26:35.833Z","isFirstParty":false,"canonicalSlug":"preflight-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-3bfc8ad7"}