API & test
Ship receipts, alerts, and lifecycle mail via API
Render templates with variables, send idempotently, and test from the designer before anything hits a real inbox.
- POST /v1/templates/{key}/send with schema contract
- Test send from the template editor
- Idempotency keys for safe retries
- MCP tools for agents: send_test, send_transactional
Transactional API
Live previewPOST /v1/templates/welcome/send
Rendering template…
Idempotent · variables merged