{"uid":"cap_aW-ZnzMi17dWR0SwDtBcM","slug":"preflight-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-ce403a62","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://preflight.agentdiet.dev/v1/paywall-scanner)","url":"https://preflight.agentdiet.dev/v1/paywall-scanner?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_qE9oV6M9JWwIR4wjCdNDr","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"preflight.agentdiet.dev","brandSlug":"preflight-agentdiet-dev-mpp","brandBaseUrl":"https://preflight.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Audits any remote A2A agent, MCP server, or x402-enabled URL for JSON-RPC compliance, latency SLA, OpenAPI schema conformance, and HTTP 402 payment settlement headers.","exampleAgentPrompt":"Can you audit https://api.myagent.dev/mcp for JSON-RPC compliance, check its latency SLA, and tell me whether it's correctly implementing HTTP 402 x402 payment headers?","exampleUseCases":[{"title":"Pre-deploy MCP server compliance check","prompt":"Before I go live, can you run a full compliance audit on https://staging.myservice.dev/mcp — I need to know if the JSON-RPC responses are correct, whether the latency is within SLA, and if the x402 payment headers are set up properly?"},{"title":"Debugging a broken x402 paywall integration","prompt":"My x402 paywall at https://api.example.com/v1/premium keeps rejecting agent payments — can you scan it to see whether the HTTP 402 settlement headers are correctly formatted and what the compliance issues are?"},{"title":"Vendor agent endpoint due diligence","prompt":"I'm about to integrate a third-party A2A agent at https://vendor.agentplatform.io/a2a — can you audit it for protocol compliance, check the OpenAPI schema, and verify it handles HTTP 402 correctly before I wire it into my swarm?"}],"resultDescription":"Returns a structured compliance report covering: JSON-RPC protocol adherence, measured latency against SLA thresholds, OpenAPI schema validation findings, and HTTP 402 / x402 settlement header correctness — flagging any violations or misconfigurations found at the target URL.","failureModes":["Target URL is unreachable or returns a network error — audit cannot complete","Target URL does not expose any recognized A2A, MCP, or x402 interface — results may be empty or inconclusive","Latency SLA thresholds unavailable if target has high jitter or intermittent availability","Invalid or malformed URL input causes request rejection","Target endpoint blocks automated probes via rate limiting or IP filtering"],"whenToPreferThis":"Choose this endpoint when you need to programmatically verify that a remote agent, MCP server, or x402 paywall correctly implements protocol standards — including JSON-RPC correctness, OpenAPI schema conformance, latency SLA, and HTTP 402 settlement headers — before integrating it into an agent workflow or swarm. It is the right choice for pre-deployment compliance checks, third-party vendor due diligence, or debugging payment/protocol issues in live agent endpoints.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:26:02.912Z","isFirstParty":false,"canonicalSlug":"preflight-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-3bfc8ad7"}