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Why you are here

You want to stop bad addresses before they hit your ESP, protect sender reputation, and keep acquisition lists clean. The Bolt Route Email Verification API lets you validate a single address at signup or run large list checks in the background without building a full pipeline yourself.

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What you can do

Verify one address

Check deliverability signals on a single email in real time.

Verify a list

Submit a list and download results when processing completes.

Upload a file

Send a file and let the system handle parsing and validation.

Track usage

Pull verification metrics and monitor usage over time.

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How it works (quick flow)

  1. Create an API key.
  2. Pick realtime for one-off checks or batch for large lists.
  3. Read the verification result and take action in your app.

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Base URL and versioning

All endpoints live under /api/v1. Examples use https://api.boltroute.ai as a placeholder, so replace it with your production or staging base URL.

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Authentication

Every request requires your API key. Send it with the Authorization: Bearer <api_key> header. See Authorization for details.

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Understanding results

You get an overall status plus supporting signals (for example is_disposable, is_role_based, is_catchall, and DNS/SMTP checks). Treat valid as deliverable, invalid as a hard fail, invalid_syntax as invalid input, disposable_domain as disposable, and unknown or catchall as cases that need your business logic.