{"uid":"cap_BOC4aVzEOLZfTv9lwmmm5","slug":"agentdiet-mpp-verifier-765dda61","name":"AgentDiet MPP Verifier","description":"Deterministic B2A/A2A/MCP/x402/MPP/L402 execution and intelligence node at https://mcp-gateway.agentdiet.dev settling in USDC on Base.","url":"https://mcp-gateway.agentdiet.dev/v1/mpp-verifier?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","POST"],"type":"string"},"queryParams":{"type":"object","properties":{"url":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"data":{},"status":"ok","roi_proof":{"compression_ratio_pct":91.4}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","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":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_DhF8Ky9K0fPALl-sd2QX1","protocol":"x402","methodType":"crypto","chain":"base","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":"Verifies and validates MPP (Micropayment Protocol) requests, returning a structured result with ROI proof and compression metrics for x402/L402 payment flows.","exampleAgentPrompt":"Can you verify this MPP payment request for me — it's an HTTP GET — and confirm whether it's valid and show me the ROI proof and compression ratio?","exampleUseCases":[{"title":"Validate agent micropayment before execution","prompt":"Before my agent sends a payment request to that x402 API, can you run it through the MPP verifier to make sure it's a valid HTTP GET and show me whether it passes and what the compression ratio looks like?"},{"title":"Audit L402 flow for compliance","prompt":"I need to check if this L402/x402 HTTP request is properly formed and compliant — can you run it through the MPP verifier and return the status and ROI proof?"},{"title":"Debug a failing MPP request","prompt":"My agent's MPP call keeps failing — can you verify the HTTP POST request against the MPP verifier endpoint and tell me if the status comes back ok and what the data payload looks like?"}],"resultDescription":"Returns a JSON object with a 'status' field (e.g. 'ok'), a 'data' object containing verification details, and a 'roi_proof' object including a compression_ratio_pct metric (e.g. 91.4%) indicating payload efficiency.","failureModes":["Missing required 'type' or 'method' fields in input returns a validation error","Unsupported HTTP method (not GET or POST) causes rejection","Malformed URL in queryParams leads to lookup failure","Payment not settled (USDC on Base) may block access with a 402 response","Empty or null input object results in schema validation failure"],"whenToPreferThis":"Choose this endpoint when you need to programmatically verify or validate an MPP/x402/L402 HTTP request before execution, especially within agent-to-agent or bot-to-agent payment flows settled in USDC on Base. It is particularly useful for auditing compression efficiency and obtaining ROI proof for micropayment calls routed through the AgentDiet MCP Gateway.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T12:44:22.408Z","isFirstParty":false,"canonicalSlug":"agentdiet-mpp-verifier-765dda61"}