npm · npm:msw

msw active

The industry standard for API mocking in JavaScript.

The latest stable version of msw is 3.0.5, published on 2026-11-11. Verified by Vigia on 2026-11-13.

Maintenance

Heuristic based only on release dates; it does not measure issue or security response times.

Version history

Showing the 20 most recent of 304 versions. JSON

Version compatibility

Newest stable version that declares support for each runtime version (from the requirements published with each version).

Give your AI agent these facts

claude mcp add --transport http vigia https://vigia.coredls.cloud/mcp

{ "mcpServers": { "vigia": { "url": "https://vigia.coredls.cloud/mcp" } } }

Frequently asked questions

Observed changes

• Wed Nov 11 2026 02:45:19 GM +0000 (Coordinated Universal Time) — released 3.0.4 → 3.0.5
• Fri Nov 06 2026 02:43:34 GM +0000 (Coordinated Universal Time) — released 3.0.3 → 3.0.4
• Sat Oct 10 2026 02:03:08 GM +0000 (Coordinated Universal Time) — released 3.0.2 → 3.0.3
• Sat Oct 03 2026 03:23:03 GM +0000 (Coordinated Universal Time) — released 3.0.1 → 3.0.2
• Wed Sep 30 2026 13:34:35 GM +0000 (Coordinated Universal Time) — released 3.0.0 → 3.0.1
• Mon Sep 28 2026 16:58:52 GM +0000 (Coordinated Universal Time) — runtime_requirement_changed
• Mon Sep 28 2026 16:58:52 GM +0000 (Coordinated Universal Time) — released 2.15.0 → 3.0.0

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Badges for your README

Show the latest version, maintenance status and deprecation status of this package. Copy the Markdown:

[![version](https://vigia.coredls.cloud/badge/npm/msw/version.svg)](https://vigia.coredls.cloud/npm/msw)
[![maintained](https://vigia.coredls.cloud/badge/npm/msw/maintained.svg)](https://vigia.coredls.cloud/npm/msw)
[![status](https://vigia.coredls.cloud/badge/npm/msw/status.svg)](https://vigia.coredls.cloud/npm/msw)

For agents

GET https://vigia.coredls.cloud/v1/packages/npm/msw
GET https://vigia.coredls.cloud/v1/packages/npm/msw/versions/{version}