libzapi

CZMQ;
 Ø  High-level C binding for ØMQ.
 Ø  zctx class for working with ØMQ contexts.
 Ø  zsocket class for working with sockets.
 Ø  zsockopt class lets you set/get socket options.
 Ø  zstr class lets you send/receive string messages.
 Ø  zframe class lets you send/receive individual frames.
 Ø  zmsg class for working with multipart messages.
 Ø  zthread class lets you create threads.
 Ø  zclock class for working with timers & clocks.
 Ø  zloop class gives you a reactor with timer events.
 Ø  zlist class for working with linked-lists.
 Ø  zhash class for working with hash containers.
 Ø  Supports libzmq/2.1+ and libzmq/3.x.
 Ø  LGPL free software, commercial support by iMatix Corporation.

If you're new to ØMQ, read the Guide