Gemini CLI with Crazyrouter

Updated 2026-10-12. Gemini CLI uses the Gemini native protocol. An OpenAI /v1 configuration is not interchangeable with this setup.

Install and configure

Requires Node.js 20 or later. Create a key in the Crazyrouter console.

npm install -g @google/gemini-cli@0.63.0
export GEMINI_API_KEY="YOUR_CRAZYROUTER_API_KEY"
export GOOGLE_GEMINI_BASE_URL="https://api.crazyrouter.com"
export GEMINI_MODEL="gemini-3.1-pro"
gemini --model gemini-3.1-pro

In the authentication selector choose Use Gemini API key. If a saved Google OAuth login is selected, switch authentication mode before testing the gateway.

PowerShell:

$env:GEMINI_API_KEY="YOUR_CRAZYROUTER_API_KEY"
$env:GOOGLE_GEMINI_BASE_URL="https://api.crazyrouter.com"
$env:GEMINI_MODEL="gemini-3.1-pro"
gemini --model gemini-3.1-pro

The API key is sent to the configured API server for authentication. Do not commit it. For persistence, follow the CLI's documented environment/configuration loading rules.

Scope and troubleshooting

• Use Gemini models with a Gemini-native endpoint. A shared gateway key does not make Claude/GPT work inside Gemini CLI.
• GEMINI_API_BASE is not the documented override. Use GOOGLE_GEMINI_BASE_URL without /v1 or tracking parameters.
• HTTP 401/403: verify the key, selected authentication mode and permissions. HTTP 404: verify the exact model ID and API path.
• Pricing, limits and context sizes depend on the selected model and account. There is no universal discount or unlimited quota.
• This guide pins an installation version; a complete interactive CLI/tool-use session has not been tested on every OS.

Official configuration · Crazyrouter Gemini guide · Current prices