Users API
The Users API provides access to user profile information and identity data.Endpoints
Get Current User
GET
Example Request
Response
User Response Fields
Unique user identifier
User’s first name
User’s last name
User’s email address
Full display name (typically “First Last”)
URL to user’s avatar image
Alternative URL to user’s avatar image
Authentication
This endpoint requires authentication via API key. The response returns information about the user who owns the API key.Testing Your API Key
Use this endpoint to verify that your API key is valid:Use Cases
Verify Authentication
Check if the current API key is valid and retrieve the associated user:Get User Context
Retrieve user information to personalize your application:Display User Avatar
Retrieve and display the current user’s avatar:User Lite Serializer
When users appear in other API responses (e.g., as assignees, project members, or cycle owners), they are typically returned using the lightweightUserLiteSerializer format:
- Work item assignees (when using
expand=assignees) - Project members
- Cycle owners
- Module members
- Comment authors
Error Responses
Unauthorized
Status:401 Unauthorized
- The API key is invalid
- The API key has expired
- The API key has been revoked
- No API key was provided
Authentication Required
Status:401 Unauthorized
X-Api-Key header is missing from the request.
Related Endpoints
Authentication
Learn how to obtain and use API keys
Workspaces
Access workspace and member information
