{"uid":"cap_DXWVHjrtcrHxAjQnt8t0Y","slug":"prompt-guard-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-1a9cfcb0","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/usdc-quote-audit)","url":"https://prompt-guard.agentdiet.dev/v1/usdc-quote-audit?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_a_uMMZdw2PrEvKH4C75nV","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 URL for JSON-RPC compliance, latency SLA, OpenAPI schema validity, and HTTP 402 payment settlement headers","exampleAgentPrompt":"Can you audit https://my-agent.example.com/mcp to check if it's properly JSON-RPC compliant, meets latency SLAs, has a valid OpenAPI schema, and has the right HTTP 402 settlement headers set up?","exampleUseCases":[{"title":"Pre-launch MCP server compliance check","prompt":"Before I go live, can you audit https://tools.mycompany.com/mcp and tell me if it's fully JSON-RPC compliant and has valid HTTP 402 headers configured?"},{"title":"Agent marketplace listing verification","prompt":"I want to list my agent at https://agents.mybrand.io/v1/chat in a marketplace — can you check whether it meets A2A protocol standards and passes latency SLA requirements?"},{"title":"x402 payment endpoint audit","prompt":"Can you verify that https://api.myservice.dev/v1/query has the correct x402 HTTP 402 settlement headers and is IETF MPP compliant before I start charging for it?"}],"resultDescription":"Returns a structured audit report covering JSON-RPC compliance status, measured latency against SLA thresholds, OpenAPI schema validation findings, and HTTP 402 / x402 settlement header compliance — effectively a pass/fail compliance summary with details per check","failureModes":["Target URL is unreachable or returns a non-2xx/402 response","Target URL does not implement JSON-RPC, causing protocol mismatch errors","Malformed or missing OpenAPI schema at the target endpoint","Latency SLA thresholds cannot be evaluated if the service is too slow or timing out","Invalid or missing `url` query parameter returns a validation error","Target endpoint blocks probe requests due to authentication or firewall rules"],"whenToPreferThis":"Use this endpoint when you need to programmatically verify that a remote A2A agent, MCP server, or x402-enabled API meets protocol compliance standards — especially JSON-RPC spec adherence, HTTP 402 payment header correctness, OpenAPI schema validity, and latency SLAs. Prefer it over manual inspection when building automated CI checks, marketplace listing validators, or agent fleet health monitors.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:26:18.411Z","isFirstParty":false,"canonicalSlug":"prompt-guard-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-fe721720"}