bing-chat

Bing Chat API

Node.js client for the unofficial Bing Chat API.

(30s conversation demo)

• Intro
• Install
• Usage
• Projects
• Compatibility
• Related
• License

Intro

This package is a Node.js wrapper around Bing Chat by Microsoft. TS batteries included. ✨

Warning This package is a reverse-engineered hack. I do not expect it to continue working long-term, and it is not meant for use in production. I'm building this in public, and you can follow the progress on Twitter @transitive_bs.

Install

npm install bing-chat

Make sure you're using node >= 18 so fetch is available.

Usage

You need access to Bing Chat OR a valid cookie from someone who has access. The cookie you need is the _U cookie (or just all of the cookies concatenated together; both will work).

import { BingChat } from 'bing-chat'

async function example() {
  const api = new BingChat({
    cookie: process.env.BING_COOKIE
  })

  const res = await api.sendMessage('Hello World!')
  console.log(res.text)
}

You can follow-up messages to continue the conversation. See demos/demo-conversation.ts for an example.

Note that Bing Chat conversations expire after about 20 minutes, so they're not meant to be long-term objects.

You can add streaming via the onProgress handler:

const res = await api.sendMessage('Write a 500 word essay on frogs.', {
  // print the partial response as the AI is "typing"
  onProgress: (partialResponse) => console.log(partialResponse.text)
})

// print the full text at the end
console.log(res.text)

See demos/demo-on-progress.ts for a full example of streaming support.

Projects

If you create a cool integration, feel free to open a PR and add it to the list.

Compatibility

• This package is ESM-only.
• This package supports node >= 18.
• This module assumes that fetch is installed globally.
• If you want to build a website using bing-chat, we recommend using it only from your backend API

Related

• chatgpt - Node.js client for the unofficial ChatGPT API. Same author as this package, and a very similar API format.

License

MIT © Travis Fischer

If you found this project interesting, please consider sponsoring me or following me on twitter