Github Router

github-router

[](https://github.com/animeshkundu/github-router/actions/workflows/ci.yml) [](https://www.npmjs.com/package/github-router) [](LICENSE)

Use your GitHub Copilot subscription to power **Claude Code**, **Codex CLI**, or any OpenAI/Anthropic-compatible tool.

github-router is a local reverse proxy that translates standard API formats to GitHub Copilot's backend. One command to start, copy-paste configs for your tools.

[!WARNING] Unofficial. Not supported by GitHub. May break. Use responsibly. Review the [GitHub Copilot Terms](https://docs.github.com/site-policy/github-terms/github-terms-for-additional-products-and-features#github-copilot) and [Acceptable Use Policies](https://docs.github.com/site-policy/acceptable-use-policies/github-acceptable-use-policies#4-spam-and-inauthentic-activity-on-github).

Quick Start

# 1. Authenticate (one-time)
npx github-router@latest auth

# 2. Start the proxy
npx github-router@latest start

The server runs at `http://localhost:8787`. Now pick your tool below.

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Use with Claude Code

**Option A: One-shot subcommand (recommended)**

npx github-router@latest claude

Boots the proxy on a random port and spawns Claude Code wired to it. Sets `ANTHROPIC_MODEL=claude-opus-4-8` (Anthropic's dashed slug — Claude Code's `/model` UI displays this as menu entry "Opus 4.8 (1M context)"). The proxy translates to Copilot's `claude-opus-4.8` at request time (single base slug; the catalog entry's `max_context_window_tokens` already advertises 1M context — no `-1m` sibling needed for 4.8). Major.minor fallback chain: `claude-opus-4-7` → `claude-opus-4-6` → `claude-opus-4-5`. Override with `-m`:

npx github-router@latest claude -m claude-opus-4-8

The launcher sanitizes parent-env auth keys an