There are different REST endpoints available in Predibase that you can interact with directly. In any request you must provide the correct authorization headers.
The bearer token for any request will be your user API token, found in your user profile under Settings.
There are various CLI and graphical tools you can use to make a REST request, but to use the common
curl command as an example, your request will end up looking like this:
curl --request POST \
--url "https://api.app.predibase.com/v1/prompt" \
--header "Authorization: Bearer YOUR-USER-TOKEN-HERE" \
... <other arguments>