Google Vertex AI
Set up Vertex AI with a service-account key or application-default credentials, set project and region, and declare models.
Set up
- Worker UI → AI models → Add → advanced kinds →
vertex. - Credentials — one of: a service-account key (JSON) stored for the provider,
GOOGLE_APPLICATION_CREDENTIALS, orgcloud auth application-default loginon the worker machine. extra.project(or taken from the credential) andextra.region(defaultus-central1;globalusesaiplatform.googleapis.com).- Declare the models you use — Vertex has no simple per-project list of usable models.
The health check exchanges the credential for a Google OAuth token and reads the project's Vertex AI location.
How agents use it
Agents receive ANTHROPIC_VERTEX_PROJECT_ID, GOOGLE_CLOUD_PROJECT and CLOUD_ML_REGION. Claude Code runs with
CLAUDE_CODE_USE_VERTEX=1; Gemini CLI uses Vertex directly as well.