{"uid":"cap_MmkZIXxj5SLAoJHaSaqz0","slug":"whale-momentum-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-539fe819","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://whale-momentum.agentdiet.dev/v1/paywall-check)","url":"https://whale-momentum.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_bzr_fOERTa3QnbpIX1LRt","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"whale-momentum.agentdiet.dev","brandSlug":"whale-momentum-agentdiet-dev-mpp","brandBaseUrl":"https://whale-momentum.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 my MCP server at https://myagent.example.com/mcp and tell me whether it's JSON-RPC compliant, passing its latency SLA, and returning the right HTTP 402 settlement headers?","exampleUseCases":[{"title":"Pre-launch agent endpoint compliance check","prompt":"Before I go live, can you run a full compliance audit on my A2A endpoint at https://staging.myservice.ai/agent — I need to know if the JSON-RPC responses are valid, the latency is within SLA, and the HTTP 402 headers are set up correctly?"},{"title":"Verifying third-party MCP server integrity","prompt":"I'm about to integrate a third-party MCP tool at https://tools.partnerapi.io/v1/mcp into my agent stack — can you audit it for protocol compliance and check if its OpenAPI schema and x402 paywall headers are properly implemented?"},{"title":"Ongoing x402 paywall health check","prompt":"Can you check whether my x402 payment endpoint at https://whale-momentum.agentdiet.dev/v1/paywall-check is correctly returning settlement headers and passing the IETF MPP compliance requirements?"}],"resultDescription":"Returns a structured audit report covering JSON-RPC protocol compliance, measured latency vs SLA thresholds, OpenAPI schema validity, and HTTP 402/x402 settlement header correctness for the submitted URL.","failureModes":["Target URL is unreachable or returns a network error","Target URL does not implement any auditable protocol (not A2A, MCP, or x402)","Malformed or missing URL query parameter returns a 400 error","Target service times out, resulting in an SLA failure report","OpenAPI schema cannot be fetched or parsed from the target"],"whenToPreferThis":"Use this endpoint when you need to programmatically verify that an A2A agent, MCP server, or x402 paywall URL is correctly implementing its declared protocols — especially before integration, after deployment, or as a periodic compliance health check. It is more appropriate than generic HTTP testing tools when you specifically need JSON-RPC, OpenAPI, SLA latency, and HTTP 402 settlement header validation in a single call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:21:26.529Z","isFirstParty":false,"canonicalSlug":"whale-momentum-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-14d6c442"}