Java MQTT client library. Hudson/Maven product build. p2 repository.
C MQTT client library. Binaries for 64-bit Linux, Windows and Mac. Build for the Eclipse IDE.
Samples for each.
API Documentation for each.
Future releases will support MQTT 3.1.1 as well as the existing MQTT 3.1 specification. MQTT 3.1 support will not be dropped for the forseeable future.
The client libraries only have messages for debug information (trace) and errors (exceptions). None are internationalized at this point.
Java - JDK 1.4.2 and above
C - Linux, Windows and Mac OS/X. Can also be called from C++
Python - Python 2.7, 3 and above.