* [Mock Service Worker v3.0.3](https://github.com/mswjs/msw) – Network-level API mocking library using Service Worker for seamless request interception in JavaScript.

* [jest-mock-extended 4.0.2](https://github.com/marchaos/jest-mock-extended) – Type-safe TypeScript mocking extensions for Jest, providing typed mocks, calledWith, deep mocks, and mock utilities.