Claude Platform on Google Cloud / Claude Code v2.1.213

What

Claude Code can now connect to Claude running on Google Cloud infrastructure via claude.googleapis.com, using Application Default Credentials or an explicit bearer token provider.

Usage

# Set your GCP project and let Claude Code discover the workspace
export ANTHROPIC_GOOGLE_CLOUD_PROJECT=my-gcp-project
export ANTHROPIC_GOOGLE_CLOUD_LOCATION=us-east5   # optional, defaults to global
export ANTHROPIC_GOOGLE_CLOUD_WORKSPACE_ID=my-workspace

# Or provide a full base URL directly
export ANTHROPIC_GOOGLE_CLOUD_BASE_URL=https://claude.googleapis.com/v1alpha/projects/...

# Enable the Google Cloud path
export CLAUDE_CODE_USE_ANTHROPIC_GOOGLE_CLOUD=true

# Skip auth entirely (if your infrastructure handles it externally)
export CLAUDE_CODE_SKIP_ANTHROPIC_GOOGLE_CLOUD_AUTH=true

Details

Routes to https://claude.googleapis.com/v1alpha/projects/{project}/locations/{location}/workspaces/{workspace}/invoke
Authenticates using Google Application Default Credentials (ADC) automatically when no other auth is provided — no API key required
Accepts an explicit bearerTokenProvider callback, a googleAuth object, or an authClient directly
The deprecated text Completions API is not available on this provider
GCP environment variable values for project, workspace, and location are validated to only contain letters, digits, hyphens, and underscores — URL metacharacters that could rewrite the request path are rejected with a clear error
The anthropicGoogleCloud provider is now recognized in the provider enum in SessionStart hooks and other SDK schema positions

Evidence

AnthropicGoogleCloud client implementation (search for "Claude Platform on Google Cloud", "https://claude.googleapis.com", ANTHROPIC_GOOGLE_CLOUD_PROJECT)

Strings lifted out of the shipped bundle, so the claim above can be checked against them.