Get an audit

Compare · Communication

Mailbox access compared head to head

36 like-for-like comparisons of mailbox access APIs, each pair scored category by category with prices, facts and verdicts side by side. Pairs are made only when both do the same job.

  • 36 comparisons
  • 1 job
  • 9 ranked

Ranked

  1. #1Nylas Email APIA78.7
  2. #2Gmail APIBB77.8
  3. #3EmailEngineBB71.4
  4. #4Outlook Mail (Microsoft Graph)B66.3
  5. #5HimalayaB64.5
  6. #6UnipileC58.4
  7. #7Fastmail API (JMAP)C54.1
  8. #8Zoho Mail APID53.8
  9. #9Aurinko Email APIE44.2

Mailbox access 36

For companies

Do agents find, use and choose your tools?

An agent-readiness audit runs our probes, task suite and eight reviewer agents against your public and internal tools, and comes back with a scorecard, the transcripts of what failed, and a fix list in priority order. From $2,500, re-run included. We never take payment to move a rank. We do help companies earn one.

Get an auditSee a sample report