Archiving the heist: Bing Chat's unofficial Python API

What it does EdgeGPT wraps Microsoft’s undocumented Bing Chat endpoints in an async Python library, exposing both a conversational chatbot and an image generator. You send prompts and receive structured responses—including source citations, follow-up suggestions, and code blocks—without opening a browser. The library handles the messy parts of authentication and response parsing so you can treat Bing Chat like a local API.

The interesting bit The library treats browser cookies as a consumable resource: it expects files matching bing_cookies_*.json and automatically rotates through them when you near the daily quota of roughly 200 requests. It also encodes the uncertainty of Microsoft’s authentication rules—sometimes an Edge user-agent and a home IP are enough, sometimes you need exported cookies, and datacenter ranges often get challenged.

Key highlights

• Exposes both Bing Chat (Chatbot, Query) and Bing Image Creator (ImageGen, ImageQuery) through async Python interfaces.
• Structured response objects give you text, citations, suggested follow-ups, and extracted code blocks without manual parsing.
• Built-in cookie rotation across multiple bing_cookies_*.json files to work around daily quotas.
• Region-aware by necessity: the library acknowledges that mainland China requires a VPN and that datacenter IPs may trigger extra authentication.
• Published to PyPI and available as a Docker image, though the repo is now archived.

Caveats

• The project is archived and unmaintained; the README explicitly warns that the author lacks time to fix future breakage.
• Authentication is a moving target: some regions allow anonymous access, others demand Microsoft account cookies, and datacenter IPs often face extra scrutiny.
• Hard daily quotas (around 200 requests) and regional gating make it impractical for heavy or automated production use.

Verdict Worth studying if you are reverse-engineering modern AI interfaces or need a reference for scraping structured chat data. Avoid if you need a maintained API; the repository is archived and Microsoft moves fast enough to break unofficial clients quickly.