{"uid":"cap_k-kdanyYtOfe797jcXseG","slug":"echoempire-email-mx-lookup-validation-f0b9872b","name":"EchoEmpire Email MX Lookup & Validation","description":"Pay-per-call web utilities in USDC on Base via x402 — no account, no API key. Every paid call is publicly verifiable at /ledger.json.","url":"https://echoempire-demand-gateway.echoempire-in-co.workers.dev/v1/email-mx?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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":["email"],"properties":{"email":{"type":"string","description":"Email address to check"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"mx":[{"host":"mx.example.com","priority":10}],"role":false,"email":"jane@example.com","hasMx":true,"domain":"example.com","verdict":"deliverable_domain","disposable":false,"syntaxValid":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_OOouwqbVsVQMuc-JRmTHl","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","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 MX records, syntax, disposability, and deliverability — pay-per-call via USDC with no account required.","exampleAgentPrompt":"Can you check whether jane@example.com is a real, deliverable email address — specifically whether it has valid MX records, passes syntax checks, and isn't a disposable or role-based address?","exampleUseCases":[{"title":"Pre-signup email quality gate","prompt":"Before we add this new user to our system, can you verify that sarah.jones@startup.io is a legitimate, deliverable email — not disposable or a catch-all — and that the domain actually has mail servers set up?"},{"title":"Cold outreach list hygiene","prompt":"I'm about to send a cold email campaign and I need to know if contact@acmecorp.com is a real deliverable address or a role-based inbox I should avoid targeting."},{"title":"Detect throwaway email at checkout","prompt":"A user just signed up with temp-mail@guerrillamail.com — can you tell me if that's a disposable email address I should flag or reject?"}],"resultDescription":"A JSON object containing: the original email and extracted domain, a list of MX host records with priorities, boolean flags for hasMx, syntaxValid, disposable, and role, plus a human-readable verdict string (e.g. 'deliverable_domain') summarizing overall deliverability.","failureModes":["Invalid or malformed email address returns syntaxValid: false with no MX data","Domain with no MX records returns hasMx: false and a non-deliverable verdict","Payment failure or insufficient USDC balance returns HTTP 402","Network or DNS resolution errors may return a 500-level error","Disposable/temporary email services are flagged but the domain may still technically resolve"],"whenToPreferThis":"Choose this endpoint when you need a single-call, no-signup email validation with MX record data, deliverability verdict, and disposable/role detection — especially when working in a serverless or agent context where paying $0.003 per call in USDC is preferable to maintaining an API subscription. Ideal for spot-checking individual addresses rather than bulk validation pipelines.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:35:56.210Z","isFirstParty":false,"canonicalSlug":"echoempire-email-mx-lookup-validation-f0b9872b"}