# @types/chai

> TypeScript definitions for chai

Latest version **5.2.3** (published 2025-10-20) · MIT license · 0 weekly downloads

## Install

```sh
npm install @types/chai
pnpm add @types/chai
yarn add @types/chai
bun add @types/chai
```

## Health

**Score 70/100 (B)** — status: stable.

Positive: has types; esm support; no vulnerabilities; high maintenance score; popular repo; extremely popular.

Warnings: low downloads.

## Facts

| | |
|---|---|
| Version | 5.2.3 |
| Published | 2025-10-20 |
| First published | 2016-05-17 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | bundled |
| Module format | ESM |
| Dependencies | 2 |
| Unpacked size | 89.9 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 51437 |
| Maintainers | types |

## Links

- npm: https://www.npmjs.com/package/@types/chai
- Repository: https://github.com/DefinitelyTyped/DefinitelyTyped
- Homepage: https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/chai
- npm.io page: https://npm.io/package/@types/chai

## Dependencies (2)

- [@types/deep-eql](https://npm.io/package/@types/deep-eql.md) *
- [assertion-error](https://npm.io/package/assertion-error.md) ^2.0.1

## Recent versions

- 5.2.3 (latest) — 2025-10-20
- 5.2.2 (ts5.1) — 2025-05-05
- 5.2.1 (ts5.0) — 2025-03-24
- 5.0.1 (ts4.8) — 2024-10-28
- 4.3.16 (ts4.7) — 2024-05-04
- 4.3.12 (ts4.6) — 2024-02-23
- 4.3.11 (ts4.5) — 2023-11-21
- 4.3.6 (ts4.4) — 2023-09-04
- 4.3.4 (ts4.2) — 2022-11-07
- 4.3.3 (ts4.0) — 2022-08-08
- 4.3.1 (ts3.9) — 2022-04-13
- 4.3.0 (ts3.8) — 2021-12-07
- 4.2.22 (ts3.7) — 2021-09-21
- 4.2.21 (ts3.6) — 2021-07-08
- 4.2.18 (ts3.5) — 2021-05-08
- … 82 more at https://npm.io/package/@types/chai/versions

## README

# Installation
> `npm install --save @types/chai`

# Summary
This package contains type definitions for chai (http://chaijs.com/).

# Details
Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/chai.

### Additional Details
 * Last updated: Mon, 20 Oct 2025 23:32:35 GMT
 * Dependencies: [@types/deep-eql](https://npmjs.com/package/@types/deep-eql), [assertion-error](https://npmjs.com/package/assertion-error)

# Credits
These definitions were written by [Bart van der Schoor](https://github.com/Bartvds), [Andrew Brown](https://github.com/AGBrown), [Olivier Chevet](https://github.com/olivr70), [Matt Wistrand](https://github.com/mwistrand), [Shaun Luttin](https://github.com/shaunluttin), [Satana Charuwichitratana](https://github.com/micksatana), [Erik Schierboom](https://github.com/ErikSchierboom), [Bogdan Paranytsia](https://github.com/bparan), [CXuesong](https://github.com/CXuesong), and [Joey Kilpatrick](https://github.com/joeykilpatrick).

---
_Source: https://npm.io/package/@types/chai · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._