MQTT-C is a lightweight, open-source C client library for the MQTT protocol, designed specifically for embedded systems and resource-constrained environments. With its simple, portable, and non-blocking API, MQTT-C enables developers to integrate reliable publish/subscribe communication into applications running on Linux, RTOS, or even bare-metal systems. Its focus on performance and simplicity makes MQTT-C a preferred choice for building fast, scalable IoT solutions.

To support qualification efforts, Validas offers a specialized MQTT‑C Qualification Kit for use in safety‑critical contexts.

COSAFE unifies the demands of leading safety standards—ISO 26262, IEC 61508, and beyond—into one cohesive framework.

Matched with a tailored Qualification Package for MQTT‑C, it delivers a full Qualification Kit that helps your team achieve compliance and confidence in safety‑critical applications.