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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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7 pages for anthropic_vertex_base_url.

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Environment variables Claude Code CLI · in the page env-vars …| | `ANTHROPIC_VERTEX_BASE_URL` | Override Google Cloud's Agent Platform endpoint URL. Use for custom Googl… Claude Code on Google Cloud's Agent Platform Claude Code CLI · in the page google-vertex-ai …Agent Platform endpoint URL for custom endpoints or gateways # export ANTHROPIC_VERTEX_BASE_URL=https://aiplatform.googleapis.com # When CLOUD_ML_REGION=global, override region for models that don't… Connect Claude Code to an LLM gateway Claude Code CLI · in the page llm-gateway-connect …Tabs> <Tab title="Bash or Zsh"> ```bash theme={null} export ANTHROPIC_VERTEX_BASE_URL=https://llm-gateway.example.com/vertex export ANTHROPIC_VERTEX_PROJECT_ID=your-gcp-project-id ex… Gateway protocol reference Claude Code CLI · in the page llm-gateway-protocol …| | Google Cloud's Agent Platform rawPredict | `ANTHROPIC_VERTEX_BASE_URL` with `CLAUDE_CODE_USE_VERTEX=1` | `:rawPredict`, `:streamRawPredict`, `count-tokens:rawPredict` (opti… Roll out an LLM gateway for your organization Claude Code CLI · in the page llm-gateway-rollout …model each part of a session uses | | `ANTHROPIC_BEDROCK_BASE_URL`, `ANTHROPIC_VERTEX_BASE_URL`, `ANTHROPIC_FOUNDRY_BASE_URL`, or `ANTHROPIC_AWS_BASE_URL` with the [variables for that provider](/docs… How Claude Code uses prompt caching Claude Code CLI · in the page prompt-caching …these setups: * [`ANTHROPIC_BEDROCK_BASE_URL`](/docs/en/env-vars), `ANTHROPIC_VERTEX_BASE_URL`, or `ANTHROPIC_BEDROCK_MANTLE_BASE_URL` set to any value, even the provider's own endpoint * `ANTHROPIC… Enterprise deployment overview Claude Code CLI · in the page third-party-integrations …C_BASE_URL`, `ANTHROPIC_BEDROCK_BASE_URL`, `ANTHROPIC_AWS_BASE_URL`, `ANTHROPIC_VERTEX_BASE_URL`, or `ANTHROPIC_FOUNDRY_BASE_URL` environment variables. Learn more in [LLM gateways](/docs/en/llm-gatew…