GET /2.0/user/workspaces returns empty results with OAuth 2.0 Client Credentials grant type

[riyapulusuganti]

The GET /2.0/user/workspaces endpoint returns 200 OK but with empty values when using OAuth 2.0 Client Credentials grant type (grant_type=client_credentials).

The same endpoint works correctly with Authorization Code grant and Basic Auth — returns all workspaces as expected.

Setup:

• OAuth consumer is created at the workspace level (Workspace Settings → OAuth consumers)
• User is a workspace admin
• All scopes are enabled on the OAuth consumer

Background:We were previously using GET /2.0/workspaces with Client Credentials and it was returning all workspaces and repositories properly. After that endpoint was deprecated as part of the cross-workspace API sunset (April 14, 2026), we migrated to the recommended replacement GET /2.0/user/workspaces. However, this replacement does not work with Client Credentials grant type.

Questions:

• Is GET /user/workspaces expected to work with Client Credentials?
• If not, what is the recommended alternative for listing workspaces in server-to-server integrations where user interaction is not feasible?

[Mark C]

Hi @riyapulusuganti

Welcome to the community.

Could you confirm if you're using consumer keys from a user account or from a workspace settings?

Regards,
Mark C

[riyapulusuganti]

Hi @Mark C ,

We are using from workpsace settings.

Regards,

Riya