ANTHROPIC_VERTEX_PROJECT_ID

Updated October 13, 2026 by Alex Sorokoletov

ANTHROPIC_VERTEX_PROJECT_ID is a Claude Code environment variable: Google Cloud project ID. Its release history is not tracked here. It is listed in the official reference.

Status	Present in v2.1.294
Category	Cloud providers
Official docs	Listed

How to set it

For one session, export it in the shell that starts Claude Code:

export ANTHROPIC_VERTEX_PROJECT_ID=<value>
claude

To apply it to every session, add it to the env object of a settings file:

// ~/.claude/settings.json
{
  "env": {
    "ANTHROPIC_VERTEX_PROJECT_ID": "<value>"
  }
}

Related variables

ANTHROPIC_VERTEX_BASE_URL
ANTHROPIC_AWS_API_KEY
ANTHROPIC_AWS_BASE_URL
ANTHROPIC_AWS_WORKSPACE_ID
ANTHROPIC_BEDROCK_BASE_URL: Alternative Bedrock endpoint (alias).
ANTHROPIC_BEDROCK_MANTLE_BASE_URL
ANTHROPIC_BEDROCK_REGION_PREFIX
ANTHROPIC_BEDROCK_SERVICE_TIER

Frequently asked questions

What does ANTHROPIC_VERTEX_PROJECT_ID do?

Google Cloud project ID

Which Claude Code version has ANTHROPIC_VERTEX_PROJECT_ID?

Its release history is not tracked here.

How do I set ANTHROPIC_VERTEX_PROJECT_ID?

Export it before starting Claude Code (export ANTHROPIC_VERTEX_PROJECT_ID=value), or add it to the "env" object in ~/.claude/settings.json to apply it to every session.

All variables, searchable: Claude Code environment variables.