CoAP Insights | Sumble

What is CoAP?

CoAP (Constrained Application Protocol) is a specialized web transfer protocol for use with constrained nodes and constrained networks in the Internet of Things (IoT). It is designed for machine-to-machine (M2M) applications such as smart energy and building automation. CoAP is often used as an alternative to HTTP in resource-constrained environments, offering features like low overhead and multicast support.

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What other technologies are related to CoAP?

CoAP Competitor Technologies

MQTT

MQTT is a lightweight messaging protocol that competes with CoAP for IoT applications, especially where constrained devices and networks are involved. However it runs on TCP by default instead of UDP.

mentioned alongside CoAP in 7% (1.9k) of relevant job posts

AMQP

AMQP is a messaging protocol that can be used for IoT applications, serving as an alternative to CoAP, especially in enterprise environments where more robust messaging features are required.

mentioned alongside CoAP in 4% (269) of relevant job posts

HTTP

HTTP is a general-purpose protocol which is an alternative to CoAP. However, HTTP is less suited for constrained environments due to its overhead.

mentioned alongside CoAP in 1% (516) of relevant job posts

WebSockets

WebSockets provides full-duplex communication channels over a single TCP connection, enabling real-time data transfer. While more heavyweight than CoAP/UDP, it can be used for similar IoT scenarios.

mentioned alongside CoAP in 1% (115) of relevant job posts

CoAP Complementary Technologies

LWM2M

LWM2M is a device management protocol often used in conjunction with CoAP for managing IoT devices. It relies on CoAP as the underlying transport protocol.

mentioned alongside CoAP in 45% (215) of relevant job posts

NB-IoT

NB-IoT is a low-power wide-area network (LPWAN) technology that can be used as the underlying network for CoAP-based communication. It provides connectivity for IoT devices in challenging environments.

mentioned alongside CoAP in 10% (184) of relevant job posts

LoRaWAN

LoRaWAN is a LPWAN technology often used as the underlying network for CoAP-based IoT applications. It provides long-range, low-power communication.

mentioned alongside CoAP in 8% (204) of relevant job posts