Transactional Email API

Send emails with a
single API key

MailFlux is a developer-first email sending platform. Generate an API key, integrate in minutes, and start sending transactional emails — no domain verification required.

Create free accountView API docs

Send your first email in seconds

curl -X POST https://your-domain/api/v1/email/send \
  -H "Authorization: Bearer mf_live_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "to": "user@example.com",
    "subject": "Welcome!",
    "html": "<h1>Hello from MailFlux</h1>"
  }'

API Key Auth

Generate and manage API keys from your dashboard. Revoke instantly if compromised.

Email Logs

Full logs for every send attempt — status, recipient, timestamps, and error details.

Interactive Docs

Explore and test the REST API directly from the browser at /api-doc.