Hi @AndyK ,

External tools don’t share browser’s login context, so you’ll need to add a bearer token in the Authorization header manually.

Start by generating an access token. You can either use the Databricks CLI (databricks auth token) to get an OAuth token, or create a Personal Access Token (PAT) from your workspace settings.
Then in Postman, enter your API endpoint like:
https://<workspace-host>/api/<endpoint-path>
Go to the Authorization tab, choose Bearer Token, and paste your token.

Make sure you have CAN USE permission on the Databricks App. Also, note that tokens,especially OAuth, can expire (usually in about an hour), so you might need to generate new one when needed