{"uid":"cap_oeMEMGVuGEwHBHDpniEaI","slug":"prompt-guard-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-32e4b841","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/mpp-verifier)","url":"https://prompt-guard.agentdiet.dev/v1/mpp-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_4Xf4eG-uLsPB3v25gI41i","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://my-agent.example.com/mcp to check if it's JSON-RPC compliant, meets SLA latency targets, has a valid OpenAPI schema, and correctly returns HTTP 402 payment headers?","exampleUseCases":[{"title":"Pre-deployment MCP server compliance check","prompt":"Before I publish my new MCP server at https://tools.mycompany.com/mcp, can you audit it to make sure it's properly JSON-RPC compliant and has valid OpenAPI schema documentation?"},{"title":"Verifying x402 payment header setup","prompt":"I set up HTTP 402 payment gating on my API at https://api.myservice.dev/v1/data — can you check whether the x402 settlement headers are configured correctly?"},{"title":"Third-party A2A agent SLA validation","prompt":"I'm thinking about integrating an external agent at https://partner-agent.example.com/a2a into my workflow — can you run a full compliance and latency SLA audit on it first?"}],"resultDescription":"Returns a structured audit report covering JSON-RPC protocol compliance, measured latency against SLA thresholds, OpenAPI schema validity, and HTTP 402 payment header correctness for the target URL.","failureModes":["Target URL is unreachable or times out — audit cannot be completed","Target service returns unexpected non-standard responses that cannot be parsed for compliance","Invalid or malformed URL provided as input","Target service has no HTTP 402 headers, resulting in empty payment compliance section","Rate limiting or network restrictions prevent the auditor from reaching the target"],"whenToPreferThis":"Use this endpoint when you need to programmatically verify that an A2A agent, MCP server, or x402-gated API meets protocol compliance standards before integration or deployment, especially when you need simultaneous validation of JSON-RPC spec, latency SLA, OpenAPI schema, and HTTP 402 payment headers in a single call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T12:51:17.103Z","isFirstParty":false,"canonicalSlug":"prompt-guard-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-fe721720"}