sums001/Windows-Copilot-API

Reverse engineered Windows Copilot into an OpenAI-compatible API. Access GPT-4 and GPT-5 models through a simple REST interface without API keys or billing.

# Windows Copilot API: a free LLM API powered by Microsoft Copilot  **Using your own Microsoft Copilot account.** No API key, no credits, no paid plan: it turns the free chat at [copilot.com](https://copilot.com) (formerly copilot.microsoft.com) into an API you can call from code. You can use it in two ways: - 🐍 **As a Python library:** just call `client.chat("Hi")`. Supports streaming and multi-turn conversations. - 🔌 **As a local OpenAI-compatible API:** runs a server at `http://localhost:8000/v1` that speaks the OpenAI format, so the official `openai` SDK (and any OpenAI-compatible app) works as a drop-in, with `localhost` in place of OpenAI. You sign in once in a browser with your Microsoft **or Google** account; your session is saved and refreshed automatically after that. > **Unofficial project.** Not affiliated with or endorsed by Microsoft. It automates the consumer Copilot web experience for personal use, so use it responsibly and within Microsoft's terms. --- ## Table of contents - [Why use this?](#why-use-this) - [Requirements](#requirements) - [Setup (2 minutes)](#setup-2-minutes) - [Run with Docker (optional)](#run-with-docker-optional) - [Usage 1: In Python (no server)](#usage-1-in-python-no-server) - [Usage 2: As an OpenAI-compatible server](#usage-2-as-an-openai-compatible-server) - [Command line](#command-line) - [Concurrency & stress test](#concurrency--stress-test) - [Rate limiting](#rate-limiting) - [Project layout](#project-layout) - [Notes & limitations](#notes--limitations) - [Troubleshooting](#troubleshooting) - [Collaboration & support](#collaboration--support) - [License](#license) - [Star History](#star-his