Authentication
All API requests must include a valid API key in theAuthorization header.
Getting an API Key
- Log in to Callem Studio
- Navigate to Settings > API Keys
- Click Create API Key
- Copy the key immediately — it will only be shown once
Using the API Key
Include the key in theAuthorization header as a Bearer token:
Key Format
API keys start withck_live_ followed by 60 random hexadecimal characters:
Security
- The full API key is never stored on our servers — only a SHA-256 hash
- The key is shown once at creation time
- Keys can be restricted by IP address (single IPs, CIDR ranges, or
*for all) - Keys can have an optional expiration date
- Each key is scoped to a single project