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Communication

Best Email Verification APIs in 2026

  1. 01 ZeroBounce

    ZeroBounce may suit teams that need to validate bulk email lists or check addresses in real time, and those managing deliverability across multiple services.

    From $6.58/mo Free plan Web · iOS · Android · API
    8.6 Visit Specs
  2. 02 BillionVerify
    From $0.67/mo Free plan Web · API
    8.4 Visit Specs
  3. 03 Bouncer
    From $25/mo Free trial Web · API
    8.4 Visit Specs
  4. 04 CaptainVerify
    From $36/mo Free trial Web · API
    8.2 Visit Specs
  5. 05 Emailable

    It suits marketers, developers, and teams that need bulk list cleaning, form-time validation, API access, or deliverability monitoring.

    From $32.30/mo Free plan Web · API
    8.2 Visit Specs
  6. 06 Clearout Email Verification
    Web · API · Browser extension
    8.1 Visit Specs
  7. 07 Email Hippo
    From $9.88/mo Free trial Web · API
    8.0 Visit Specs
  8. 08 EmailValidator
    Free plan Web · API
    8.0 Visit Specs
  9. 09 emailverifier.dev
    Free plan Web · API
    7.9 Visit Specs
  10. 10 InboxTrue
    Free plan Web · API
    7.9 Visit Specs
  11. 11 Mailbeam

    Mailbeam suits developers and teams who need email checks in signup flows or through a bulk upload.

    From €19/mo Free plan Web · API
    7.9 Visit Specs
  12. 12 MailboxValidator

    MailboxValidator suits teams that need to check individual addresses through an API or validate uploaded lists.

    Free plan Web · API
    7.9 Visit Specs
  13. 13 Abstract Email Validation API

    It suits developers adding email checks to signup flows or lead workflows, and teams that need bulk validation.

    From $17/mo Web · API
    7.8 Visit Specs
  14. 14 Byteplant Email Validator
    Free trial Web · API
    7.8 Visit Specs
  15. 15 Cloudmersive Email Verification API
    From $19.99/mo API · Self-hosted
    7.8 Visit Specs
  16. 16 DOTS Email Validation
    Free trial Web · API
    7.8 Visit Specs
  17. 17 EmailListVerify
    From €16/mo Web · API · Browser extension
    7.8 Visit Specs
  18. 18 MailerCheck
    Free trial Web · API
    7.8 Visit Specs
  19. 19 QuickEmailVerification

    QuickEmailVerification may suit marketers, developers, agencies, small businesses, startups, and enterprises that need to check individual addresses or process lists.

    Free plan Web · API
    7.8 Visit Specs
  20. 20 Reoon Email Verifier

    Reoon suits teams cleaning email lists, validating forms, or integrating verification through an API.

    From $9/mo Free plan Web · API
    7.8 Visit Specs
  21. 21 Email Validator
    Free plan Web · API
    7.7 Visit Specs
  22. 22 MillionVerifier

    It suits organizations that need to check single addresses or clean lists, including teams connecting verification to email services, CRMs, or signup forms.

    Free trial Web · API
    7.7 Visit Specs
  23. 23 Email List Validation
    From $14/mo Web · API
    7.6 Visit Specs
  24. 24 Reacher
    From €69/mo Free trial Web · API · Self-hosted
    7.6 Visit Specs
  25. 25 usecheck
    From $19/mo Free plan Web · API
    7.6 Visit Specs
How this list is ordered. Specifiction scores each tool on how fully its maker documents it, whether its prices are published, where the research puts it, the platforms it runs on and whether it can be tried for free (how we rank). Makers can also buy a numbered place (how Specifiction is paid for).

Compare ZeroBounce and BillionVerify Get a place on this list

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