Email verification

Know before you send.

Check one address or a list of thousands. Every result comes back with an honest label, a confidence score and the time it was checked, so your domain stays clean.

Verify a list free API reference
  • jane@example.comverified0.94
  • sales@acme.iocatch-all0.51
  • m.chen@northwind.counknown—
  • old.address@globex.cominvalid0.02

Example results. Five free checks without an account.

The waterfall

Cheap checks first. A second opinion only when it matters.

  1. 01

    Syntax and domain

    Format, DNS and MX records, disposable and role addresses. Obvious failures stop here.

  2. 02

    Primary verifier

    A mailbox-level check. Clear answers are stored with a timestamp.

  3. 03

    Second opinion

    Uncertain, catch-all or conflicting results go to a second verifier.

  4. 04

    Honest label

    Still unclear? It's labelled unknown. We never round it up to "valid."

Built into enrichment

Every email from enrich_person is already verified. No second tool, no second bill.

Bulk lists

Upload or POST a list, get an async job ID, and pull results when they're ready. On every paid plan.

No mailbox probing tricks

An MX record isn't proof a mailbox exists. We don't pretend it is, and we don't hammer servers to find out.

Let your agent do the list building.

1,000 free records. No card. First useful result in minutes.

Get a free API key