{"uid":"cap_Zm-w19YjnXvA0NA6sRKDd","slug":"arxiv-digest-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-a88d5504","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://arxiv-digest.agentdiet.dev/v1/x402-mpp-paywall-verifier)","url":"https://arxiv-digest.agentdiet.dev/v1/x402-mpp-paywall-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_KKN3d2HHQcJzv9Spdo5Y2","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"arxiv-digest.agentdiet.dev","brandSlug":"arxiv-digest-agentdiet-dev-mpp","brandBaseUrl":"https://arxiv-digest.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Audits any A2A agent, MCP server, or x402 paywall 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 and tell me whether it's JSON-RPC compliant, what its latency looks like, and whether its HTTP 402 x402 payment headers are correctly configured?","exampleUseCases":[{"title":"Pre-launch MCP server compliance check","prompt":"Before I go live, can you run a full compliance audit on https://tools.mycompany.com/mcp — I want to know if it passes JSON-RPC spec, what the latency is, and whether the OpenAPI schema looks valid?"},{"title":"Debugging a broken x402 paywall","prompt":"My x402 paywall at https://api.myservice.dev/v1/premium keeps rejecting agent payments — can you audit it for HTTP 402 header compliance and tell me what's misconfigured?"},{"title":"Verifying a third-party A2A agent before integration","prompt":"I'm about to integrate a third-party agent at https://partner-agent.io/a2a into my pipeline — can you check it for A2A protocol compliance and SLA latency before I commit?"}],"resultDescription":"Returns a structured compliance report including JSON-RPC validity, measured latency against SLA thresholds, OpenAPI schema assessment, and HTTP 402 / x402 v2 header correctness for the audited URL.","failureModes":["Target URL is unreachable or returns connection timeout","Target URL is not a valid A2A/MCP/x402 endpoint — unexpected response format","Invalid or missing URL parameter returns 400 error","Target returns non-standard HTTP codes that cannot be parsed for compliance","Rate limit or payment required (HTTP 402) from the auditor itself"],"whenToPreferThis":"Choose this endpoint when you need to programmatically verify that a remote agent, MCP server, or x402 paywall URL meets protocol compliance standards before integration, deployment, or marketplace listing. It is especially suited for pre-launch audits, CI/CD pipeline checks, and debugging payment or JSON-RPC issues in agent-to-agent communication stacks. Prefer it over generic uptime monitors when you specifically need JSON-RPC, OpenAPI, and HTTP 402 compliance signals rather than just reachability.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:23:30.136Z","isFirstParty":false,"canonicalSlug":"arxiv-digest-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-9c312255"}