{"uid":"cap_CJ8m3ALl_Y-JcB8hnuxG4","slug":"agentdiet-mx-check-email-validation-59389906","name":"AgentDiet MX-Check Email Validation","description":"Deterministic B2A/A2A/MCP/x402/MPP/L402 execution and intelligence node at https://rag-diet.agentdiet.dev settling in USDC on Base.","url":"https://rag-diet.agentdiet.dev/v1/mx-check?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":{"email":{"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":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_zCckK98oKuvXNNSgGgQjS","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates an email address by checking its MX (mail exchange) record configuration and returns a verification status with compression proof metadata.","exampleAgentPrompt":"Can you check if the email address john.doe@example.com has a valid MX record and is actually deliverable?","exampleUseCases":[{"title":"Pre-send email list cleanup","prompt":"Before I send out this marketing campaign, validate whether contact@acmecorp.com actually has a working mail server so I don't waste sends on bad addresses."},{"title":"Lead qualification email check","prompt":"I just got a new lead who gave me the email founder@newstartup.io — can you verify it has a real MX record before I add them to my CRM?"},{"title":"Sign-up form email gating","prompt":"A user just tried to register with noreply@fakeemail.xyz — check if that email domain has a valid mail exchange record so I can decide whether to allow the signup."}],"resultDescription":"Returns a JSON object with a status field ('ok'), a data object containing the MX check result, and an roi_proof object showing compression_ratio_pct (e.g. 91.4) indicating how efficiently the context was processed.","failureModes":["Missing or invalid email query parameter returns an error status","Email domain with no MX record returns negative validation result","Network timeout if DNS lookup takes too long","Payment failure (x402) if USDC payment on Base is not provided or insufficient","Malformed input schema returns validation error"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, pay-per-call email MX validation in an agent-native (x402/A2A) workflow settling in USDC on Base. Best suited for AI agent pipelines that require deterministic email deliverability checks without managing OAuth or API keys — ideal for automated lead qualification, form validation, or list hygiene tasks embedded in agentic flows.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T12:44:00.844Z","isFirstParty":false,"canonicalSlug":"agentdiet-mx-check-email-validation-59389906"}