Chat channels

Set up Google Chat

The assistant inside Google Chat (Workspace) — direct messages and @mentions in spaces. People are matched by their Workspace email automatically; replies are instant HTTP responses, so there are no tokens to rotate at all.

In the Google Cloud console (any project) enable the “Google Chat API”, and note the project NUMBER (all digits).
Chat channels → Google Chat: enter the project number. Create, then Test.
In the Chat API's Configuration tab: set the app name/avatar, choose “HTTP endpoint URL” and paste the webhook URL from the checklist; enable receiving 1:1 messages and joining spaces; set visibility for your domain.
In Google Chat, start a chat with the app and ask something.

Messages are verified against Google's signature for your project number. In spaces the app only receives @mentions; the “When @mentioned” setting controls whose access those answers use.

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Last updated 29 Aug 2026