ccg-router / Tutorials

Run an OpenAI-compatible and Anthropic-compatible local proxy

AI coding tools do not all speak the same API shape. Claude Code commonly uses an Anthropic-compatible endpoint, while Codex CLI commonly uses an OpenAI-compatible endpoint. ccg-router accepts both shapes on one local daemon.

Protocol paths

• Anthropic-compatible: /v1/messages
• OpenAI-compatible: /v1/chat/completions

Local endpoint

export ANTHROPIC_BASE_URL=http://127.0.0.1:17180
export OPENAI_BASE_URL=http://127.0.0.1:17180

Both environment variables point to the same local router. The router uses request path and configured upstream protocol to keep the wire format consistent.

Routing strategy

The config supports prefer-cheaper, prefer-capable, and round-robin. For early local testing, prefer-cheaper is a simple default. For comparing multiple compatible providers, round-robin is useful.

Privacy model

ccg-router does not provide a hosted control plane. Provider keys stay in your local config or environment variables. The usage ledger stores request metadata, not API keys and not prompts.

Best fit

Use ccg-router when you want one local LLM router for AI coding CLI workflows and you need both OpenAI-compatible and Anthropic-compatible endpoints.