{"uid":"cap_3WLsnMLewhI3q-B3Px6kd","slug":"prompt-guard-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-5cf235ac","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://prompt-guard.agentdiet.dev/v1/paywall-scanner)","url":"https://prompt-guard.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_Z2bu8q5DrBtlFZ7RKlK6a","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"prompt-guard.agentdiet.dev","brandSlug":"prompt-guard-agentdiet-dev-mpp","brandBaseUrl":"https://prompt-guard.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Audits a remote agent, MCP, or x402 service 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 for JSON-RPC compliance, latency SLA, OpenAPI schema validity, and HTTP 402 payment headers?","exampleUseCases":[{"title":"Pre-deployment agent compliance check","prompt":"Before I go live, can you audit my agent endpoint at https://api.mybot.dev/a2a and tell me if it's JSON-RPC compliant and has correct HTTP 402 settlement headers configured?"},{"title":"Third-party MCP server vetting","prompt":"I'm thinking of integrating this MCP tool at https://tools.example.com/mcp — can you check if it passes JSON-RPC compliance, responds within SLA, and has a valid OpenAPI schema?"},{"title":"x402 paywall header verification","prompt":"Can you scan https://data-service.example.io/v1/feed to verify the HTTP 402 x402 payment headers are correctly set and the endpoint is spec-compliant before I wire up my payment flow?"}],"resultDescription":"Returns a structured compliance report covering JSON-RPC protocol conformance, measured latency vs SLA thresholds, OpenAPI schema validation findings, and HTTP 402 / x402 payment settlement header analysis for the submitted URL.","failureModes":["Target URL is unreachable or times out — returns connectivity error","Target URL returns unexpected non-agent response format — may report inconclusive compliance","Invalid or malformed URL input — returns validation error","Target endpoint blocks external probes — partial results or access denied","x402 headers absent or malformed — reported as non-compliant rather than erroring out"],"whenToPreferThis":"Choose this endpoint when you need to programmatically verify that a remote A2A, MCP, or x402 agent service meets protocol standards — specifically JSON-RPC compliance, HTTP 402 payment header correctness, latency SLA, and OpenAPI schema validity — before integrating it into an agent workflow or swarm. Prefer it over generic HTTP health-checkers when you need protocol-aware auditing specific to AI agent and payment settlement standards.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:21:50.512Z","isFirstParty":false,"canonicalSlug":"prompt-guard-agentdiet-dev-a2a-mcp-http-402-endpoint-sla-compliance-fe721720"}