Public API

Three endpoints for sending SMS from your own application, authenticated with an X-API-Key. This is the entry point for essentially every third-party integration - if you're not sure where to start, start here.

What it doesn't do (yet)

The Public API sends one message at a time - there's no bulk-send or campaign endpoint on this surface today (bulk campaigns are a Platform API / dashboard feature). There are also no outbound webhooks for third-party integrations - see Webhooks for how to get delivery updates instead.