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Port Proxy

Workspaces let you reach any service running inside the workspace container from your browser — without any tunneling setup.

How to use it

Append /blt-ws-proxy/<port>/ to your workspace URL:

https://<workspace-url>/blt-ws-proxy/<port>/

Example: dev server on port 3000:

https://<workspace-url>/blt-ws-proxy/3000/

Any path after the port is forwarded as-is:

https://<workspace-url>/blt-ws-proxy/3000/api/users

http://localhost:3000/api/users

When to use it

Use the port proxy any time your workspace is running a process that listens on a port — for example:

  • A local dev server (npm run dev, go run ., etc.)
  • A database admin UI
  • A preview server or API

Start the process in the workspace terminal, then open the port proxy URL in your browser.