GitHub Copilot API Bridge

GitHub Copilot API Bridge | Generated by AI

Home 2025.09

You’ve landed on ericc-ch/copilot-api, a GitHub project that transforms GitHub Copilot into a local API server compatible with OpenAI and Anthropic (e.g., Claude) APIs.

Here’s a clearer breakdown—no tables, just straight talk:

What’s This?

It’s a reverse-engineered proxy that lets you interact with GitHub Copilot using familiar OpenAI-style endpoints like /v1/chat/completions, /v1/models, and /v1/embeddings. You can also use Anthropic-compatible endpoints such as /v1/messages (GitHub).
Essentially, this lets tools that support OpenAI or Anthropic APIs—like Claude Code—use GitHub Copilot as their backend (GitHub).

Key Features

OpenAI & Anthropic Compatibility: Works like the real OpenAI or Anthropic API (GitHub).
Claude Code Integration: Ready to plug into Claude Code with a --claude-code flag (GitHub).
Usage Dashboard: Monitor your Copilot API usage and quotas via a built-in web interface (GitHub).
Rate Limiting & Approval Controls: Includes options for rate-limiting (--rate-limit), auto-waiting (--wait), manual approval (--manual), and debugging (showing tokens)—great for avoiding GitHub’s abuse systems (GitHub).
Supports Various Copilot Plans: Individual, business, or enterprise accounts all work (GitHub).

Setup & Usage

Prerequisites: You’ll need Bun (≥ 1.2.x) and a GitHub Copilot subscription (GitHub).

Installation Options:

Docker:

docker build -t copilot-api .
docker run -p 4141:4141 -v $(pwd)/copilot-data:/root/.local/share/copilot-api copilot-api

Or pass your GitHub token directly via GH_TOKEN (GitHub).

npx:
```
npx copilot-api@latest start --port 8080
```
Or npx copilot-api@latest auth just to authenticate (GitHub).

Command Structure:
- start: Launches the API server (handles auth if needed).
- auth: Triggers GitHub login without running the server.
- check-usage: Outputs current Copilot usage in your terminal.
- debug: Shows diagnostic info (versions, auth status, etc.), with optional --json output (GitHub).

Real-World Feedback

Reddit users have chimed in:

“This project lets you turn copilot into an openai compatible endpoint.” (Reddit) “It is an awesome project to make your …” (Reddit)

Important Caveats

Unofficial & Unsupported: This is not an official GitHub product and could break anytime (GitHub).
Risk of Abuse Detection: Heavy or automated usage might trigger GitHub’s abuse protection and could suspend your Copilot access (GitHub).
Potential Rate-Limit Issues: Some users have reported errors like 421 Misdirected Request, and the maintainer paused development while investigating (GitHub).

Summary (No Tables Needed)

What It Does: Exposes GitHub Copilot as if it were an OpenAI/Anthropic API.
Why That Matters: Makes Copilot usable in tools expecting those APIs—like Claude Code.
How to Use It: Install via Docker or npx; run commands to start, authenticate, or monitor usage.
Proceed With Caution: It’s handy, but unofficial, and GitHub’s rate-limits or security safeguards may trip up heavy use.

Let me know if you’d like help setting it up, or are curious about integrating it into a specific project or tool!

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