{"uid":"cap_XmE5m9M45VF_Cx7vUxZEF","slug":"email-validation-verification-api-297978b9","name":"Email Validation & Verification API","description":"Open job postings read first-hand from the applicant-tracking system behind a company's careers page: Greenhouse, Ashby, Lever or Workable. Includes a directory of 8532 company job boards, because none of the vendors publishes one. Salaries are parsed into numbers where the employer publishes them and refused where ambiguous. No personal data.","url":"https://companyfacts.dev/x402/v1/email-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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":["email"],"properties":{"email":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"email":"jane@example.com","verdict":"mail_server_found","disposable":false,"role_account":false}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm___eiLsZ0agd36Nb3TMSvz","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","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 mail server existence, disposable address status, and whether it is a role account","exampleAgentPrompt":"Can you check whether jane@example.com is a real, non-disposable email address that actually has a mail server behind it, and tell me if it's a role account?","exampleUseCases":[{"title":"Sign-up form spam filtering","prompt":"Before we store this new user registration, check if the email they gave us — dropbox123@mailnull.com — is a disposable or fake address so we can reject it at the door."},{"title":"CRM lead quality scoring","prompt":"I'm importing a list of leads and want to validate whether the email address john.doe@acmecorp.com has a real mail server and isn't a role account before I add it to our outreach sequence."},{"title":"Newsletter list hygiene","prompt":"Can you run a check on support@bigcompany.org to see if it's a role-based email address? I don't want to send our newsletter to generic inboxes that nobody reads."}],"resultDescription":"Returns a JSON object with the submitted email address, a verdict string (e.g. 'mail_server_found'), a boolean indicating whether the address is from a disposable provider, and a boolean indicating whether it is a role account (e.g. info@, support@, admin@).","failureModes":["Missing or malformed email query parameter returns an error","Unresolvable or non-existent domain may return a verdict indicating no mail server found","Ambiguous or partial email strings may fail schema validation","Network timeouts contacting upstream DNS/MX record lookups could delay or fail response","Rate limits may apply if many checks are issued in rapid succession"],"whenToPreferThis":"Choose this endpoint when you need real-time, lightweight email hygiene checks — specifically to detect disposable addresses and role accounts — without storing any personal data. It is best suited for pre-submission validation in sign-up flows, lead qualification pipelines, or mailing list imports where bounce reduction and spam prevention matter. Prefer it over full email deliverability services when you need a fast, low-cost per-query signal rather than bulk list scrubbing.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:40:15.523Z","isFirstParty":false,"canonicalSlug":"email-validation-verification-api-297978b9"}