Mailchimp Transactional API

Email · Operational · 30d uptime 100%
Homepage

Transactional email sending API formerly known as Mandrill. Official documentation: https://mailchimp.com/developer/transactional/api/

Trust signals

Pricing
FREEMIUM
Auth
API_KEY
CORS
Yes
Rate limit
Unknown
Health
125ms
Trust score
97 (A)

Last checked Sep 4, 2026 · uptime 24h 100% / 7d 100% / 30d 100%

Excellent production-readiness signals.

Links

Integration checklist

  • Auth is API_KEY
  • CORS enabled — callable directly from browsers.
  • Rate limit: not documented
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Mailchimp Transactional API API — pricing, auth, CORS & health | Reqistry