{"uid":"cap_NikOsDQke8VPZ7Xu-1DC5","slug":"onchain-risk-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-58346323","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://onchain-risk.agentdiet.dev/v1/paywall-check)","url":"https://onchain-risk.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_ev8ZeFMYfWZp5F54TG8a-","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"onchain-risk.agentdiet.dev","brandSlug":"onchain-risk-agentdiet-dev-mpp","brandBaseUrl":"https://onchain-risk.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://some-agent.example.com/mcp for JSON-RPC compliance, latency SLA, and HTTP 402 payment header support?","exampleUseCases":[{"title":"Vetting a third-party MCP server","prompt":"Before I integrate this MCP server at https://tools.partner.ai/mcp into my agent stack, can you audit it for JSON-RPC compliance, latency SLA, and whether it has valid OpenAPI schema?"},{"title":"Verifying x402 paywall headers on a new API","prompt":"I just deployed my x402 paywall at https://api.myservice.dev/v1/premium — can you check that it has the right HTTP 402 settlement headers and is compliant with the x402 v2 spec?"},{"title":"Pre-launch agent endpoint health check","prompt":"We're about to go live with our A2A agent at https://agent.mybusiness.io/a2a — can you run a full compliance audit on it covering JSON-RPC, SLA, and IETF MPP protocol headers?"}],"resultDescription":"Returns a compliance report object including JSON-RPC validation status, measured latency against SLA thresholds, OpenAPI schema conformance results, and HTTP 402 payment header presence and validity for the audited endpoint URL.","failureModes":["Target URL is unreachable or times out — returns error indicating connection failure","Target URL returns unexpected non-HTTP protocol response","Malformed or missing URL parameter — returns validation error","Target endpoint blocks probe requests, returning access-denied response","Incomplete or ambiguous compliance data if the target endpoint is partially configured"],"whenToPreferThis":"Use this endpoint when you need to programmatically verify that a remote A2A agent, MCP server, or x402 paywall URL correctly implements JSON-RPC, OpenAPI schema, latency SLA, and HTTP 402 payment headers — especially before integrating a third-party agent or going live with your own. Prefer this over manual inspection or generic HTTP testing tools when you need structured compliance results across all four protocol dimensions simultaneously.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:24:31.121Z","isFirstParty":false,"canonicalSlug":"onchain-risk-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-8a966155"}