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brew install wolfmqttlocal Homebrew formula metadata
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Install wolfmqtt with Homebrew
Small, fast, portable MQTT client C implementation. Version 2.1.0 via Homebrew; verified 2026-07-03.
install
Additional install commands
overview
Package summary
Small, fast, portable MQTT client C implementation
Project links
Commands and aliases
- wolfmqtt-config
history
Project history and usage
wolfMQTT is wolfSSL's small C MQTT client library for embedded and resource-constrained systems. It provides MQTT client functionality with plain TCP or TLS via wolfSSL, and the project positions itself around portability, low code size, QoS 0-2 support, MQTT 3.1.1, MQTT 5.0, and MQTT-SN.
Project history
wolfSSL's changelog says wolfMQTT has existed since the project's beginning in 2015, and GitHub release metadata shows early public releases in November and December 2015. The GitHub repository was created in October 2015, matching the changelog's project-start chronology.
The library is part of the wolfSSL product family rather than an independent MQTT broker or application. Its README and product page describe it as an MQTT Client written in C for embedded use and built from the ground up to be multi-platform, space conscious, and extensible, with TLS supplied through wolfSSL.
Adoption history
wolfMQTT's adoption follows the same embedded-security channel as wolfSSL: users who already rely on wolfSSL for TLS can add MQTT without bringing in a large runtime or a separate TLS stack. Its repository and releases show steady maintenance into the 2020s, with 2.0.0 released in March 2026.
A notable protocol transition was MQTT 5.0 support. wolfSSL's 2019 post noted that wolfMQTT, originally based on MQTT 3.1.1, also supported MQTT v5.0 after the OASIS standardization work, bringing features such as scalability improvements, better error reporting, capability discovery patterns, user properties, and support for small clients.
How it is used
Users embed wolfMQTT into firmware, gateways, RTOS applications, and C programs that need to publish or subscribe to broker topics. The examples include a general MQTT client, firmware update examples, and WebSocket broker tests, making the package useful both as a library dependency and as a reference implementation for constrained MQTT clients.
Why package nerds care
The package matters because it is an MQTT client in the same packaging and licensing orbit as wolfSSL. For embedded package maintainers, that means a small C MQTT stack whose TLS story is deliberately aligned with the wolfSSL library already used for HTTPS, DTLS, and device-security work.
Timeline
- 2015: wolfMQTT project begins; early GitHub releases v0.2 and v0.3 published in November.
- 2016: 0.x releases continue as the library matures.
- 2019: wolfSSL documents wolfMQTT support for MQTT v5.0 after OASIS standardization.
- 2022: changelog records wolfMQTT 1.12.0 with MQTT v5 fixes and multithreading-related API work.
- 2026: wolfMQTT v2.0.0 released.
Related projects
- wolfSSL supplies the TLS layer wolfMQTT uses for secure MQTT connections.
- MQTT 3.1.1, MQTT 5.0, and MQTT-SN are the protocol specifications wolfMQTT targets.
Sources
security posture
Risk level: blue
broad file, network, media, or database tool signal.
Risk classifier
blue risk · medium confidence · tool
Why
- broad file, network, media, or database tool signal
Signals
- text:client
Install behavior
- No Homebrew post-install hook is recorded in formula metadata.
- Homebrew bottle metadata is available for 6 platform targets.
- Installs with 1 runtime dependencies.
- Build metadata lists 3 build dependencies.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
wolfmqtt-config | cli | global executable |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-07-08
manager version2.1.0
manager updated2026-07-03
local dataok
upstreamcurrent
latest detectedv2.1.0
https://github.com/wolfSSL/wolfMQTT
- okNo freshness warnings were generated.
install metadata
Package metadata
| Package key | brew:wolfmqtt |
|---|---|
| Version | 2.1.0 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/wolfmqtt |
| Homepage | https://www.wolfssl.com |
| Repository | https://github.com/wolfSSL/wolfMQTT |
| Upstream docs | https://www.wolfssl.com/documentation/manuals/wolfmqtt |
| License | GPL-3.0-or-later |
| Source archive | https://github.com/wolfSSL/wolfMQTT/archive/refs/tags/v2.1.0.tar.gz |
| Last updated | 2026-07-03T00:12:41Z |
| Pulse | updated |
| Dependencies | wolfssl |
| Build dependencies | autoconf, automake, libtool |
| Bottle | available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux) |
| Homebrew post-install | not defined |
| Service | none declared |
registry facts
Source database details
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | wolfmqtt |
| Version Scheme | 0 |
| Revision | 0 |
| Head Version | HEAD |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Geiger risk classifier
- Nucleus package database
- av.db category and tag curation
- cross-ecosystem install command graph
- curated package history
- package relationship graph
- package version freshness
- package-page enrichment