{"uid":"cap_ruqwMdXirlyWNla59SOgx","slug":"prompt-guard-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-f3b67a3d","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/paywall-check)","url":"https://prompt-guard.agentdiet.dev/v1/paywall-check?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_IYZKBcWOXt4glx_bYFS1F","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 remote 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 for JSON-RPC compliance, latency SLA, OpenAPI schema validity, and HTTP 402 payment settlement headers?","exampleUseCases":[{"title":"Pre-integration MCP server compliance check","prompt":"Before I add this MCP server to my agent stack, can you audit https://tools.myplatform.ai/v1/mcp and tell me if it passes JSON-RPC compliance, has a valid OpenAPI schema, and meets latency SLA?"},{"title":"HTTP 402 paywall header verification","prompt":"I built an x402-gated API at https://api.mystartup.dev/v1/premium — can you check whether it correctly returns HTTP 402 settlement headers and is x402 v2 compliant?"},{"title":"Agent fleet SLA audit before production rollout","prompt":"We're about to go live — can you run a full compliance audit on https://agent.myfleet.io/a2a to check JSON-RPC adherence, latency SLA, and IETF MPP protocol headers?"}],"resultDescription":"Returns a structured audit report covering JSON-RPC compliance status, measured latency against SLA thresholds, OpenAPI schema validation findings, and HTTP 402 / x402 v2 settlement header presence and correctness for the submitted URL.","failureModes":["Target URL is unreachable or times out — audit returns connectivity error","URL does not implement any recognized protocol (A2A/MCP/x402) — returns non-compliant result with no applicable checks","Malformed or missing URL parameter — returns 400 validation error","Target endpoint returns unexpected content type — schema validation may be incomplete","Rate limiting or auth on the target endpoint blocks the probe — audit returns partial or failed results"],"whenToPreferThis":"Use this endpoint when you need a programmatic, structured compliance report on a specific agent or MCP URL before integrating it into an agent workflow, when debugging x402/HTTP 402 payment header issues, or when validating latency SLAs and JSON-RPC protocol conformance for A2A services. Prefer it over manual inspection or generic HTTP testing tools when you need simultaneous multi-protocol checks (JSON-RPC, OpenAPI, HTTP 402/x402, SLA) in a single call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:23:15.717Z","isFirstParty":false,"canonicalSlug":"prompt-guard-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-fe721720"}