This script automates the process of creating and deleting Google Cloud API keys for the Generative Language API (Gemini) across multiple Google Cloud projects.

Prerequisites

Python 3.12 or higher
A Google Cloud account and project

Setup

Create OAuth Client ID credentials:
- Go to the Google Cloud Console.
- Click on Create Credentials and select OAuth client ID.
- Select Desktop app as the application type.
- Give it a name and click Create.
- Download the JSON file and save it as credentials.json in the root of this project.
Install dependencies:
```
pip install -r requirements.txt
```
Create emails.txt file (for creating keys in bulk):
- Create a file named emails.txt in the root of the project.
- Add the email addresses of the Google accounts you want to process, one email per line. You can add comments with #.

Usage

Run the script from your terminal with a specified action (create or delete).

Creating API Keys

For all users in emails.txt:
```
python main.py create
```

For a single user:

python main.py create --email your.email@example.com

The first time you run the script for a new email address, you will be prompted to authenticate with your Google account in your web browser. A token file will be saved in the credentials directory for future runs.

The script will then:

Find all Google Cloud projects accessible by the authenticated user.
Enable the generativelanguage.googleapis.com API for each project.
Create a new API key named "Gemini API Key" with restrictions to the Generative Language API.
Save the API key(s) to a file named <email>.keys.txt.

Deleting API Keys

To delete all API keys with the display name "Gemini API Key" for a specific user, run:

python main.py delete --email your.email@example.com

This will iterate through all projects accessible by that user and remove the matching keys.