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Callr API

Build powerful voice and messaging applications with the Callr REST API.

Callr Actions

Design call flows with Callr Actions — a declarative, YAML-based framework inspired by GitHub Actions.

Free Trial

You may request a Callr account here. Registrations are reviewed - please provide your professional details. Once your request is approved, you may start using our platform.

Your account begins in Build Mode. Take your time to explore and test the platform. In build mode, you can test everything, but there are a few limitations:

You cannot buy phone numbers. Instead, you can request temporary numbers to test Inbound Call flows.
You can only make Outbound Calls to 5 Testing Numbers. You must prove ownership of the Testing Numbers.
Some destinations may be restricted.