{"uid":"cap_aci9YNrP6Av5xMGtMssOS","slug":"agentdiet-paywall-check-http-402-mcp-sla-compliance-auditor-31f9e0b6","name":"AgentDiet Paywall Check — HTTP 402 & MCP 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://agentdiet.dev/v1/paywall-check)","url":"https://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":["x402"],"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":"unknown","protocol":"x402","network":"base","amountUsd":null,"per":"call","confidence":"unknown"},{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_aKUC0hVfPUmuYTe6_TRiY","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null},{"uid":"pm_0qHc5FAMq8bLqyauMr3ZY","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Audits a remote agent, MCP, or HTTP endpoint for JSON-RPC compliance, latency SLA, OpenAPI schema validity, and HTTP 402 payment header conformance.","exampleAgentPrompt":"Can you audit https://example-agent.dev/v1/tool to check whether it properly supports HTTP 402 payment headers, passes JSON-RPC compliance, and meets latency SLA requirements?","exampleUseCases":[{"title":"Pre-integration A2A endpoint compliance check","prompt":"Before I wire this new A2A agent into my swarm, can you audit https://partner-agent.xyz/v1/execute via GET and tell me if it's properly handling HTTP 402 settlement headers and JSON-RPC?"},{"title":"MCP server SLA verification","prompt":"I need to verify that the MCP server at https://mcp.mytoolserver.com/rpc meets latency SLA standards and has a valid OpenAPI schema — can you run a compliance check on it?"},{"title":"x402 paywall conformance testing","prompt":"Can you check if https://api.agentmarket.io/v1/search correctly implements the x402 payment protocol, including the right response headers for HTTP 402 and proper settlement flow?"}],"resultDescription":"Returns an audit report covering: JSON-RPC protocol compliance status, measured latency against SLA thresholds, OpenAPI schema validity, and correctness of HTTP 402 payment/settlement headers for the target URL.","failureModes":["Target URL is unreachable or times out — audit fails with connectivity error","Target URL does not return any recognizable agent/MCP response — partial or inconclusive audit","Invalid or missing URL query parameter — request rejected with validation error","Target URL blocks probing requests (e.g. IP allowlist) — false negative compliance result","Malformed JSON-RPC response at target — compliance check flags as non-compliant even if intentional"],"whenToPreferThis":"Choose this endpoint when you need to programmatically verify that a remote agent, MCP server, or HTTP API correctly implements the HTTP 402 (x402) payment protocol, JSON-RPC spec, and latency SLAs — especially before integrating it into an agent swarm or marketplace listing. Prefer this over manual curl-based testing or generic HTTP monitoring tools when you specifically need structured compliance output against A2A/MCP/x402 standards.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T12:48:03.747Z","isFirstParty":false,"canonicalSlug":"agentdiet-paywall-check-http-402-mcp-sla-compliance-auditor-31f9e0b6"}