{"uid":"cap_WNYUFboPSRSlIMIoE79rE","slug":"prompt-guard-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-555c7f5c","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://prompt-guard.agentdiet.dev/v1/preflight/certify)","url":"https://prompt-guard.agentdiet.dev/v1/preflight/certify?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_ozDBTcDDZEyijEce8xMXJ","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"prompt-guard.agentdiet.dev","brandSlug":"prompt-guard-agentdiet-dev-mpp","brandBaseUrl":"https://prompt-guard.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Audits a target agent, MCP, or x402 service URL for JSON-RPC compliance, latency SLA, OpenAPI schema validity, and HTTP 402 payment settlement headers.","exampleAgentPrompt":"Can you run a compliance audit on my MCP server at https://my-agent.example.com/mcp — I want to know if it passes JSON-RPC compliance, latency SLA, and HTTP 402 payment header checks?","exampleUseCases":[{"title":"Pre-deployment MCP server validation","prompt":"Before I go live, can you audit my MCP endpoint at https://staging.myagent.io/mcp to make sure it's JSON-RPC compliant and the latency SLA is acceptable?"},{"title":"HTTP 402 payment header readiness check","prompt":"I'm building an x402-enabled agent API at https://api.myservice.dev/v1/agent — can you verify that the HTTP 402 settlement headers are correctly configured and it passes the x402 compliance checks?"},{"title":"Third-party A2A tool compliance review","prompt":"I want to integrate an external A2A tool from https://partner-agent.example.com/a2a — can you run a full compliance audit on it to check its OpenAPI schema, JSON-RPC compliance, and SLA before I connect it to my agent fleet?"}],"resultDescription":"Returns a structured compliance report covering JSON-RPC protocol conformance, measured latency against SLA thresholds, OpenAPI schema validation results, and HTTP 402 payment settlement header presence and correctness for the audited URL.","failureModes":["Target URL is unreachable or returns a network error — audit fails with connectivity error","Target endpoint returns unexpected content type — JSON-RPC compliance check fails","URL parameter missing or empty — returns 400 bad request","Target service has no OpenAPI schema — schema validation section may be skipped or marked N/A","HTTP 402 headers absent — flagged as non-compliant for x402 settlement"],"whenToPreferThis":"Choose this endpoint when you need to certify that a specific A2A agent, MCP server, or x402-enabled API is protocol-compliant before integrating it into an agent workflow or marketplace listing. Particularly useful for pre-deployment validation, third-party tool vetting, and ensuring HTTP 402 micropayment readiness per IETF MPP and x402 v2 standards.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:23:42.137Z","isFirstParty":false,"canonicalSlug":"prompt-guard-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-fe721720"}