Package

@mswjs/interceptors

Low-level network interception library for Node.js.

v0.45.1, 24 Sept 2026MITESM onlyTypes: BundledTesting Dev servers and API mocking

$ npm install @mswjs/interceptors

npm GitHub Homepage

Key numbers

As of 25 Sept 2026

Weekly downloads: 15.6m; +155% over 12 months
Gzip bundle size: -; No Bundlephobia data
Dependencies: 6; Direct, from package.json
Last release: today; v0.45.1
GitHub stars: 687; 174 forks
Open issues / PRs: 19 / 6
Contributors: -
Commits, last 52 weeks: 82

Downloads

Last week 2026-09-15 to 2026-09-21

Weekly npm downloads, one point per week, weeks starting 23 Sept 2025 to 15 Sept 2026. The y axis starts at zero.

15,572,040 downloads last week, 81,505,420 in the last month. The 12-month change of +155% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months: 26206 in total
Latest version: 0.45.1, 24 Sept 2026today
First published: 22 Mar 2021
Last push to GitHub: 24 Sept 2026same day as the snapshot
Repository archived: No
Open issues: 19
Open pull requests: 6
Commits, last 52 weeks: 82
Dependents on npm: 106

Major versions

v0 first release 0.7.0, 22 Mar 2021

Recent releases

Version	Published
0.45.1	24 Sept 2026
0.45.0	21 Sept 2026
0.44.0	21 Sept 2026
0.43.2	18 Sept 2026
0.43.1	18 Sept 2026
0.43.0	16 Sept 2026
0.42.6	13 Sept 2026
0.42.5	10 Sept 2026
0.42.4	8 Sept 2026
0.42.3	24 Jul 2026
0.42.2	24 Jul 2026
0.42.1	22 Jul 2026
0.42.0	22 Jul 2026
0.41.9	11 May 2026

Compatibility

Module format: ESM onlyFrom package.json type, main and exports fields
TypeScript types: Bundled
Node.js engine range: >=22
Runtimes: -
Unpacked size (npm): 1.7 MB
Dependencies (6): debugrettimeoutvariant@types/debugis-node-process@open-draft/until

Install

npm install @mswjs/interceptors

CDN

jsDelivr: 1.8m requests in 30 days

jsDelivrhttps://cdn.jsdelivr.net/npm/@mswjs/interceptors@0.45.1/
unpkghttps://unpkg.com/@mswjs/interceptors@0.45.1/
esm.shhttps://esm.sh/@mswjs/interceptors@0.45.1

Alternatives

Package	Weekly downloads	Gzip	Last release	Module	Comparison
xhr-mocklet Utility for mocking XMLHttpRequests in the browser or nodejs.	332.8k	-	7 years ago	ESM + CommonJS	-
fetch-mock-cache Caching mock fetch implementation for all runtimes and frameworks.	456.8k	-	2 months ago	ESM only	-
mock-property Given an object and a property, replaces a property descriptor (or deletes it), and returns a thunk to restore it.	450.6k	-	3 months ago	CommonJS	-
vitest-canvas-mock 🌗 A module used to mock canvas in Vitest.	819.6k	-	20 days ago	ESM + CommonJS	-
ng-mocks ng-mocks simplifies Angular testing with mock dependencies, shallow rendering and less boilerplate. Mock components, services, directives, pipes and modules in Angular 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 with Jasmine, Jest or Vitest.	404.6k	-	6 days ago	ESM + CommonJS	-
jest-websocket-mock Mock websockets and assert complex websocket interactions with Jest	212.9k	-	3 years ago	ESM + CommonJS	-
jest-localstorage-mock Auto mock all localstorage and sessionstorage APIs for your Jest tests	281k	-	3 years ago	ESM + CommonJS	-
jest-canvas-mock Mock a canvas in your jest tests.	2m	-	2 months ago	CommonJS	-

Sources: npm registry, npm downloads API, GitHub API, jsDelivr. Data fetched 25 Sept 2026.

Indexability: Indexed.