{"uid":"cap_fxu9zIfDhmFazvoofzyFq","slug":"whale-momentum-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-14d6c442","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/preflight)","url":"https://whale-momentum.agentdiet.dev/v1/preflight?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_SNCgK3_NpuEqCm71p1neI","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 A2A, MCP, or x402 service URL for JSON-RPC compliance, latency SLA, OpenAPI schema validity, and HTTP 402 payment settlement headers","exampleAgentPrompt":"Can you audit this MCP server URL — https://my-agent.example.com/mcp — and tell me if it's JSON-RPC compliant, meeting latency SLA, and returning the right HTTP 402 settlement headers?","exampleUseCases":[{"title":"Pre-deployment agent endpoint check","prompt":"Before I go live, audit https://staging.myagent.io/v1/agent and tell me if it passes JSON-RPC compliance, OpenAPI schema validation, and HTTP 402 header checks."},{"title":"x402 payment header verification","prompt":"I need to confirm that https://api.myservice.dev/tool is correctly returning x402 v2 settlement headers — can you run a compliance audit on it?"},{"title":"SLA monitoring for third-party MCP tool","prompt":"Can you check the latency SLA and protocol compliance of the MCP server at https://tools.thirdparty.ai/mcp — I want to know if it meets acceptable response time thresholds."}],"resultDescription":"Returns a structured audit report covering JSON-RPC compliance status, latency SLA measurement, OpenAPI schema validation outcome, and HTTP 402 / x402 settlement header inspection for the supplied target URL.","failureModes":["Target URL is unreachable or times out — audit may return connectivity error","URL does not expose a valid JSON-RPC or HTTP endpoint — compliance checks fail with no-response result","Malformed or missing URL parameter returns a 400-level validation error","Target service returns non-standard HTTP responses that prevent header inspection","x402 settlement headers absent or malformed — reported as non-compliant without crashing the audit"],"whenToPreferThis":"Choose this endpoint when you need to programmatically verify that an A2A agent, MCP server, or x402-enabled service URL correctly implements JSON-RPC, passes latency SLA thresholds, exposes a valid OpenAPI schema, and returns HTTP 402 payment settlement headers per the x402 v2 / IETF MPP spec — especially before deploying agents that will call those services or listing them in a registry.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:21:48.313Z","isFirstParty":false,"canonicalSlug":"whale-momentum-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-14d6c442"}