genai-toolbox/docs/en/getting-started/quickstart/shared/cloud_setup.md

If you plan to use Google Cloud’s Vertex AI with your agent (e.g., using vertexai=True or a Google GenAI model), follow these one-time setup steps for local development:

1. Install the Google Cloud CLI

2. Set up Application Default Credentials (ADC)

3. Set your project and enable Vertex AI

   gcloud config set project YOUR_PROJECT_ID
   gcloud services enable aiplatform.googleapis.com