zenoh-pico is the Eclipse zenoh implementation that targets constrained devices, offering a native C API. It is fully compatible with its main Rust Zenoh implementation, providing a lightweight implementation of most functionalities.

zenoh (pronounce /zeno/) unifies data in motion, data at rest and computations. It carefully blends traditional pub/sub with geo-distributed storages, queries and computations, while retaining a level of time and space efficiency that is well beyond any of the mainstream stacks.

zenoh-pico supports various platforms including Unix, Zephyr, Arduino, ESP-IDF, MbedOS, FreeRTOS, and Raspberry Pi Pico, with transport protocols including UDP (unicast and multicast), TCP, Serial, WebSocket, and more.