{"uid":"cap_dnXbehhkLY2zhNDep1Pld","slug":"x402broker-paywall-check-http-402-mcp-endpoint-compliance-auditor-911ef154","name":"x402broker Paywall Check — HTTP 402 & MCP Endpoint 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://x402broker.com/v1/paywall-check)","url":"https://x402broker.com/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_8jRNT_Hdjw7cDzzF7kh0a","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null},{"uid":"pm_-EI7Gu4OV4dkfAkiiaSdg","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 URL for JSON-RPC compliance, latency SLA, OpenAPI schema validity, and HTTP 402 payment settlement headers","exampleAgentPrompt":"Can you audit https://api.myagent.com/v1/tool for HTTP 402 compliance and check whether its JSON-RPC responses and latency SLA are up to spec using a GET request?","exampleUseCases":[{"title":"Verify agent payment wall before launch","prompt":"Before I go live, can you check that https://api.mybotservice.com/v1/chat correctly returns HTTP 402 headers and is JSON-RPC compliant? Use a GET request to audit it."},{"title":"Monitor MCP server SLA compliance","prompt":"Audit my MCP server at https://mcp.myplatform.io/tools via GET — I need to know if it passes latency SLA requirements and has valid OpenAPI schema declarations."},{"title":"Debug broken x402 paywall endpoint","prompt":"Something seems off with my x402 paywall at https://broker.myapp.xyz/v1/pay — can you run a compliance audit on it via GET and tell me what's failing in the 402 headers or JSON-RPC responses?"}],"resultDescription":"Returns a structured compliance report covering: JSON-RPC protocol conformance, measured latency against SLA thresholds, OpenAPI schema validity, and presence/correctness of HTTP 402 payment settlement headers for the audited URL","failureModes":["Target URL is unreachable or times out — returns error indicating host is unavailable","Invalid or malformed URL provided — returns validation error","Target returns unexpected content type — compliance check may be partial","Rate limit exceeded — returns 429","Payment not settled — returns HTTP 402 requiring USDC payment"],"whenToPreferThis":"Choose this endpoint when you need to verify that a remote agent, MCP server, or HTTP API endpoint correctly implements the HTTP 402 payment protocol, JSON-RPC spec, OpenAPI schema, and latency SLAs — especially useful before deploying or integrating a new agent endpoint, debugging a broken paywall, or periodically monitoring compliance of live services","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T12:46:07.717Z","isFirstParty":false,"canonicalSlug":"x402broker-paywall-check-http-402-mcp-endpoint-compliance-auditor-911ef154"}