mqtt 4.2.3

A library for the MQTT protocol

mqtt@4.2.3 was published on 2020-10-27. Its manifest declares 13 runtime dependencies and 0 peer requirements. Type declarations are bundled according to the package metadata. The declared Node.js requirement is >=10.0.0.

Deprecated: mqttws bug, use alternative version.

All mqtt versions · Permanent reference to 4.2.3 · Latest release

Package specifications

Version4.2.3
License declarationMIT
Published2020-10-27T19:48:09.134Z
Node.js requirement>=10.0.0
Type declarationsBundled declarations
Runtime dependency count13
Peer requirement count0
Optional dependency count0
Minified sizeMeasurement not available yet
Minified + gzipMeasurement not available yet
Unpacked distribution size723.75 KiB
Published file count28
Package typeNot declared
ES module entryNot declared
Default entrymqtt.js
Side effects declarationNot declared
Direct advisories0
Resolved graph dependencies77
Repository stars9126
Repository forks1456

Install mqtt 4.2.3

npm install mqtt@4.2.3
pnpm add mqtt@4.2.3
yarn add mqtt@4.2.3

Runtime dependencies

Peer requirements

  • None declared

Optional dependencies

  • None declared

Resolved dependency graph

This deps.dev graph describes a generic 64-bit Linux environment, not your application lockfile.

How to interpret the specifications

Bundlephobia measurements use its standard package build and may exclude peer dependencies. Unpacked npm distribution size includes shipped files and is a different measurement. Module declarations do not prove tree-shaking or runtime compatibility.

Advisories apply to this package version directly; transitive dependencies need separate inspection. Repository signals describe the whole repository and are current observations, including on historical-version pages.

OpenSSF repository checks

Provider assessment: 2026-08-24T00:00:00Z. These are repository checks, not a jsL maintenance score.

Code-Review3/10 — Found 10/28 approved changesets -- score normalized to 3
Maintained4/10 — 3 commit(s) and 2 issue activity found in the last 90 days -- score normalized to 4
Dangerous-Workflow10/10 — no dangerous workflow patterns detected
Token-Permissions0/10 — detected GitHub workflow tokens with excessive permissions
Pinned-Dependencies3/10 — dependency not pinned by hash detected -- score normalized to 3
Binary-Artifacts10/10 — no binaries found in the repo
CII-Best-Practices0/10 — no effort to earn an OpenSSF best practices badge detected
License9/10 — license file detected
Fuzzing0/10 — project is not fuzzed
Security-Policy0/10 — security policy file not detected
SAST2/10 — SAST tool is not run on all commits -- score normalized to 2

Evidence and freshness