Claude Code CLI

Anthropic's Claude Code CLI is incredibly powerful but exclusively speaks to the Anthropic API. Muxa can intercept these requests, allowing you to run Claude Code tooling against any provider, including OpenRouter or local models.

Environment Variable Injection

The CLI reads standard Anthropic environment variables. You must point these variables at Muxa before execution.

ANTHROPIC_BASE_URL=http://localhost:8081 ANTHROPIC_API_KEY=sk-muxa claude "Prompt"

macOS launchctl (Persistent GUI Configuration)

If you launch Claude via a GUI wrapper or terminal emulator that doesn't respect your .bashrc/.zshrc, use launchctl to persist the override globally:

# Persist environment variables for GUI-launched apps
## NO NEED to provide the actual key - just needs a dummy value so that openAI/Anthropic don't complain). The actual keys are read from the .env file
launchctl setenv OPENAI_API_KEY sk-muxa
launchctl setenv ANTHROPIC_API_KEY sk-muxa
launchctl setenv MUXA_BASE_URL http://localhost:8081

# Inspect current values
launchctl getenv OPENAI_API_KEY
launchctl getenv ANTHROPIC_API_KEY

# Remove when rotating credentials
launchctl unsetenv OPENAI_API_KEY
launchctl unsetenv ANTHROPIC_API_KEY

Note: You will need to completely quit and restart your terminal emulator for the launchctl environment variables to take effect.