Email API that just delivers

Send transactional and marketing emails from your app with a clean REST API — authentication, warm-up, and monitoring included.

View demo Start for free
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We currently route ~120M emails/week. Median inbox rate (last 90 days): 97.1%.

Built for developers

Our Email API makes integration simple.
Send emails, trigger automations, and track results with just a few lines of code.

Ship fast

Send with a single HTTP request. Clean JSON requests and responses — no heavy SDKs needed.

Deliver by design

Get guidance for SPF, DKIM, and DMARC setup. Safe warm-up and provider-aware throttling included.

Events, not guesswork

Use webhooks for deliveries, bounces, and complaints — plus subscriptions, opens, and clicks. Detailed sending stats are also available via API (currently on request).

Humans on-call

Reach our support team 24/7 by phone or email.

Easy API integration

Start sending in minutes with three simple steps.

Most teams send their first emails within an hour after DNS verification.

1. Get a token

Generate API credentials and verify your domain.

2. Send

POST your JSON payload with recipients, subject, HTML/text, plus optional attachments and headers.

3. Observe 

Track deliveries, bounces, and complaints via webhooks, and adjust automatically.

Email API that works

Start sending fast with a developer-friendly REST API. Power your app with reliable email delivery.

  • REST over HTTPS — clean JSON
  • Transactional & batch sends — same API
  • Events & webhooks — delivery, bounce, complaint
  • Secure by default — API tokens, TLS

Get API access See API docs

Code-friendly email delivery

Send via a simple POST request. Your app controls content; we handle deliverability and scale.

  • Security: API tokens, TLS required.
  • Response: JSON with message IDs for tracking and retries.
Get API access See API docs

Track and respond instantly

Receive JSON events — delivered, bounce, complaint, deferrals — to your HTTPS endpoint in seconds, so you can update users or pause risky sends.

  • Events: delivered, bounced, complained (and deferrals where relevant)
  • Webhooks: HTTPS POST to your endpoint with event payloads
  • Automation: update user status, trigger workflows, or pause risky traffic based on events
Get API access See API docs

“The Email API integration was quick

and smooth. We had transactional emails
sending within an hour.”

Lars van Dongen Lead Developer, Paylane