Overview

Callr's OAuth system provides secure token-based authentication with granular scopes for controlling third-party access. Build integrations that access only the specific Callr resources they need.

How it works

Create OAuth applications, manage access and refresh tokens, and implement standard authorization flows. Scopes cover call management, SMS sending, media management, DID configuration, and more. Each integration gets precisely the permissions it needs — no over-provisioning.

Use cases

Build third-party integrations without exposing master account credentials. Let partners access specific Callr features through your application. Implement secure multi-tenant architectures with per-client access control.