Transactional email API

Email delivery without the drag

Transend gives you a clean HTTP API for sending transactional email, managing domains, and inspecting delivery activity.

Send your first emailExplore the API

Start with one request

Send email with a standard JSON payload and a Bearer API key:

curl --request POST \
  --url https://api.transend.email/v1/emails \
  --header "Authorization: Bearer tsd_live_your_api_key" \
  --header "Content-Type: application/json" \
  --data '{
    "from": "hello@mail.example.com",
    "to": ["you@example.com"],
    "subject": "Hello from Transend",
    "html": "<h1>It works.</h1>"
  }'

{
  "id": "01972e64-c32c-7ac9-9929-191cf71e26a4"
}

Build with the essentials

Capability	What it gives you
Sending API	Send one email or submit a batch over HTTPS.
Domain verification	Add a sending domain and verify its DKIM records.
API keys	Issue separate credentials for production, staging, and local work.
Webhooks	Register endpoints for delivery events.

Base URL

All API requests use:

https://api.transend.email

Ready to move? The quickstart gets your first request out in a few minutes.