Gemini API Key Missing in Google Cloud

Gemini API
1

Can you fix an issue for me on Google studio and Google cloud. Google api key value missing in Google cloud hosted domain mapped to show ai web app.

Ai is working on Google studio but not on the front end browser of the web app.

Can you fix that for me?

4

Same with me, it works in the builder but its not working on browser and gives me 403, unauthorized caller ?