{"uid":"cap_B51r_gVI_r89NoMncDMDC","slug":"agentdiet-mx-deliverability-verifier-287c9ebd","name":"AgentDiet MX Deliverability Verifier","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-deliverability-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":{"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_a0JG0gJ4uNjOD-Y8-Yo6w","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":"Verifies email deliverability by checking MX records and related signals for a given email address","exampleAgentPrompt":"Can you check if john.doe@example.com is actually deliverable — look up the MX records and tell me if that domain accepts mail?","exampleUseCases":[{"title":"Pre-send email list scrubbing","prompt":"Before I send this outreach campaign, check if contact@bigcorp.com is deliverable and has valid MX records so I don't rack up bounces."},{"title":"CRM lead email verification","prompt":"I just got a new lead with email address info@startup.io — can you verify it's deliverable and the domain has a working mail server?"},{"title":"Transactional email pre-flight check","prompt":"We're about to send a password reset to user@somedomain.net — quickly verify the MX records are valid so we know the email won't bounce."}],"resultDescription":"Returns a JSON object with a status field indicating success, a data object containing MX deliverability details for the queried email address, and a roi_proof object showing compression ratio metrics. The data field contains the deliverability assessment result.","failureModes":["Missing or invalid email query parameter returns an error or empty result","Domain has no MX records — returns non-deliverable status","Network timeout when querying DNS records for obscure domains","Malformed email address input causes validation rejection","Payment not settled in USDC on Base results in 402 response"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, pay-per-call MX-level deliverability check via x402 micropayment (0.005 USDC per call) without committing to a bulk email validation subscription. Ideal for agent-driven workflows that need on-demand email validation integrated into A2A or MCP pipelines settling on Base.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T12:43:29.270Z","isFirstParty":false,"canonicalSlug":"agentdiet-mx-deliverability-verifier-287c9ebd"}