{"uid":"cap_iw0AJCckCzDmlDyE04KIm","slug":"openverbs-email-validator-f9c7a840","name":"OpenVerbs Email Validator","description":"Validate an email address — syntax, MX/A deliverability lookup, and disposable / role-based address detection. No mailbox probing.","url":"https://email.openverbs.com/v1/validate","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object","required":["email"],"properties":{"email":{"type":"string","maxLength":254,"minLength":3,"description":"Email address to validate, e.g. \"user@example.com\"."}},"additionalProperties":false},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.006","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":"$0.006/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.006","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.006","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_zIax3O2SqYGL5NC8s8573","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.006","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 for syntax correctness, MX/A DNS deliverability, and detects disposable or role-based addresses without probing the mailbox.","exampleAgentPrompt":"Can you check whether 'john.doe@tempmail.org' is a valid, deliverable email address, and let me know if it looks like a disposable or role-based address?","exampleUseCases":[{"title":"Registration form email screening","prompt":"Before we add this user to our database, check if 'signup123@guerrillamail.com' is a legitimate deliverable email or a throwaway — I don't want fake accounts getting in."},{"title":"Sales lead email quality check","prompt":"I have a lead who gave the email 'sales@acmecorp.com' — can you validate whether that domain actually receives mail and flag if it's just a generic role address?"},{"title":"Mailing list hygiene before campaign","prompt":"We're about to send a campaign to 'newsletter@info-updates.net' — can you verify the email syntax is correct, the domain has MX records, and it's not a disposable address?"}],"resultDescription":"Returns a structured validation result indicating whether the email address has valid syntax, whether the domain has resolvable MX or A DNS records (deliverability), whether the address is from a known disposable email provider, and whether it is a role-based address (e.g. admin@, support@). No SMTP mailbox probing is performed.","failureModes":["Malformed input email (too short, missing @, invalid format) returns a validation error","Unknown or unregistered domain may return undeliverable without definitive disposable verdict","Newly created disposable domains not yet in blocklist may pass detection","DNS lookup timeouts may cause deliverability check to fail or return inconclusive","Payment failure (x402) if USDC funds are insufficient"],"whenToPreferThis":"Choose this endpoint when you need lightweight, fast email validation that covers syntax, DNS deliverability, and disposable/role-based detection without performing SMTP mailbox probing. Ideal for registration flows, lead qualification, and list hygiene where privacy-safe, non-intrusive checks are required. Prefer over heavier SMTP-probing validators when speed and non-intrusiveness matter, and over purely syntax-only validators when you need real deliverability signals.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:34:35.658Z","isFirstParty":false}