🔌 Transactional email (API)

Transactional email (API)

Send receipts, OTPs and notifications programmatically from your own verified domain.

Start free trial → See pricing
Overview

A simple REST API for product email

Generate an API key, POST a JSON payload, and your email is on its way through the same managed delivery pool as your campaigns — from your own authenticated domain.

  • Send one-off transactional email via a single API call
  • Add subscribers to lists programmatically
  • Use your own verified domain and DKIM signature
  • Same deliverability infrastructure as campaigns
🔌
What you get

Key capabilities

🔑

API keys

Generate and revoke keys per integration from your dashboard.

✉️

transactional.send

One endpoint to send receipts, OTPs and alerts.

👥

subscribers.create

Push signups from your app straight into a list.

📈

Counts toward your plan

Transactional sends use the same quota — no separate billing.

Great for

Who uses this

✓

Order receipts

✓

OTP & verification emails

✓

Password resets

✓

System alerts

Explore more

Related in Solutions

Email campaigns Marketing automation Audience segmentation Deliverability & warmup Reseller / white-label

Ready to get started?

Free 14-day trial on managed or self-hosted plans. No credit card required.

Start free → Talk to sales