Configure CLI Tools

Once you have an API key, point your tool's base URL at RouterBus and give it the key.

If you prefer a GUI, CC-Switch can import a key in one click from the API Keys page.

API addresses

Endpoint	Address
OpenAI-compatible	https://www.routerbus.com/v1
Claude native	https://www.routerbus.com
Gemini native	https://www.routerbus.com/v1beta

Which address you use depends on the protocol your client speaks, not on the model you pick. Copy model IDs from Model Square.

Quick setup

Claude Code

export ANTHROPIC_BASE_URL=https://www.routerbus.com
export ANTHROPIC_AUTH_TOKEN=sk-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

See Claude Code Setup.

Codex CLI

export OPENAI_BASE_URL=https://www.routerbus.com/v1
export OPENAI_API_KEY=sk-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

See Codex CLI Setup.

Gemini CLI

export GOOGLE_GEMINI_BASE_URL=https://www.routerbus.com/v1beta
export GEMINI_API_KEY=sk-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

See Gemini CLI Setup.

Do not skip the base URL

Setting only the API key leaves the request going to the provider's own address, and a RouterBus key against the provider's API is just a 401.

Other clients

Anything that accepts a custom OpenAI base URL works: use https://www.routerbus.com/v1 and your key. Copy Connection Info on the API Keys page copies both at once.