Does the google-chat-api service have a free tier for organizations?
In the tutorials it is mentioned that we have to create a cloud account and enable billing, which I was led to believe is not a necessity. In other docs its mentioned we just require a service account with no mention of billing. Therefore I am unclear as to whether this api is suitable for my purpose and constraints.
I shall be using it sparsely and in low volume, and only for in-house needs.
There is no charge to enabling and configuring the Chat API and pointing the configuration at an endpoint not within the Google Cloud project.
You do need a Google Workspace Domain at this time and I believe a billing account.
*There could be very minor ancillary costs around logging errors.