CoAP
Constrained Application Protocol (CoAP) is a specialized web transfer protocol for use with constrained nodes and constrained networks in the Internet of Things, as defined by IETF RFC 7252. CoAP adopts a REST model making it easy to learn and easy to adapt to HTTP. coaps:// is a related protocol, where “s” stands for a secure layer using DTLS. Learn more at coap.technology.
- GitHub: https://github.com/topics/coap
- Wikipedia: https://en.wikipedia.org/wiki/Constrained_Application_Protocol
- Released: 2014
- Related Topics: api, rest, http, iot, dtls, cbor,
- Aliases: coaps, coap-protocol,
- Last updated: 2026-03-14 00:05:50 UTC
- JSON Representation
https://github.com/thingsboard/thingsboard
Open-source IoT Platform - Device management, data collection, processing and visualization.
cloud coap dashboard iot iot-analytics iot-platform iot-solutions java kafka lwm2m microservices middleware mqtt netty platform snmp thingsboard visualization websockets widgets
Last synced: 12 May 2025
https://github.com/emqx/emqx
The most scalable MQTT broker for AI, IoT, IIoT, and connected vehicles
aiot broker coap emqx erlang iiot industry-40 iot iot-middleware lorawan lwm2m m2m manufacturing message-queue messaging mqtt mqtt-broker mqtt-protocol mqtt-server pubsub
Last synced: 17 Jan 2026
https://github.com/iot-technology/iot-technical-guide
:honeybee: IoT Technical Guide --- 从零搭建高性能物联网平台及物联网解决方案和Thingsboard源码分析 :sparkles: :sparkles: :sparkles: (IoT Platform, SaaS, MQTT, CoAP, HTTP, Modbus, OPC, WebSocket, 物模型，Protobuf, PostgreSQL, MongoDB, Spring Security, OAuth2, RuleEngine, Kafka, Docker)
coap gateway internet-of-things iot iot-platform jwt micorservice modbus mqtt multitenant nosql opc-ua real-time rule-engine thingsboard token tsl websocket
Last synced: 14 May 2025
https://github.com/IoT-Technology/IoT-Technical-Guide
:honeybee: IoT Technical Guide --- 从零搭建高性能物联网平台及物联网解决方案和Thingsboard源码分析 :sparkles: :sparkles: :sparkles: (IoT Platform, SaaS, MQTT, CoAP, HTTP, Modbus, OPC, WebSocket, 物模型，Protobuf, PostgreSQL, MongoDB, Spring Security, OAuth2, RuleEngine, Kafka, Docker)
coap gateway internet-of-things iot iot-platform jwt micorservice modbus mqtt multitenant nosql opc-ua real-time rule-engine thingsboard token tsl websocket
Last synced: 27 Mar 2025
https://github.com/absmach/supermq
Event-driven Infrastructure for Modern Cloud
coap distributed-systems edge edge-computing golang iiot internet-of-things iot iot-cloud iot-gateway iot-platform lora lorawan lwm2m message-broker messaging mqtt opc-ua telecom web-socket
Last synced: 18 Aug 2025
https://github.com/phodal/designiot
教你设计物联网系统。构建自己的Internet of Things 。
coap desing-iot github-books internet-of-things iot iot-design mqtt
Last synced: 15 May 2025
https://github.com/x-tools-author/x-tools
Qt-SerialPort-HID-BLE-UDP-TCP-WebSocket-Modbus-CANBus-MQTT debugging tool, which support custom lua, javascript, chart view and data transmitting...
canbus coap com hid javascript lua master modbus mqtt opc-ua opcua qt-serial qtnetwork serial serialport tcp uart udp websocket xtools
Last synced: 15 Mar 2026
https://github.com/eclipse-californium/californium
CoAP/DTLS Java Implementation
coap dtls eclipseiot internet-of-things iot java
Last synced: 14 May 2025
https://github.com/eclipse-leshan/leshan
Java Library for LWM2M
bootstrap-server coap device-management eclipse eclipseiot internet-of-things iot java lwm2m lwm2m-client lwm2m-protocol lwm2m-server
Last synced: 16 May 2025
https://github.com/iot-technology/groza
开源物联网平台 - 物联网解决方案的设备管理，数据收集，处理
coap http iot mqtt netty springboot2
Last synced: 27 Oct 2025
https://github.com/jetlinks/jetlinks
JetLinks Core
coap dtls iot iot-cloud iot-gateway jetlinks mqtt reactive-streams reactor rule-engine udp vertx webflux
Last synced: 15 May 2025
https://github.com/plgd-dev/go-coap
Implementation of CoAP Server & Client in Go
blockwise-transfer coap coap-client coap-noresponse coap-protocol coap-server coap-tcp dtls iot multicast ocf pion-dtls udp
Last synced: 28 Feb 2026
https://github.com/iot-technology/iot-toolkit
Toolkit is a IoT protocol client CLI for IoT developer and learners. CoAP、MQTT And NB-IoT protocol are currently supported. It supports colors, autocompletion, internationalization(chinese, english and german…) and multi-platforms
coap coap-cli coap-client coap-protocol command-line-tool iot mqtt mqtt-client mqtt-protocol
Last synced: 12 Apr 2025
https://github.com/Fitbit/golden-gate
Framework to connect wearables and other IoT devices to mobile phones, tablets and PCs with an IP-based protocol stack over Bluetooth Low Energy
ble bluetooth coap coap-client coap-server corebluetooth dtls gatt gatt-client gatt-server ip lwip network networking protocol tcp-ip
Last synced: 20 Apr 2025
https://github.com/chrysn/aiocoap
The Python CoAP library
asyncio coap internet-of-things oscore python
Last synced: 14 May 2025
https://github.com/yakuza8/peniot
PENIOT: Penetration Testing Tool for IoT
amqp ble coap hacking hacking-tools iot iot-hacking mqtt penetration-testing penetration-testing-framework penetration-testing-tools python python2-7 security security-attacks
Last synced: 07 May 2025
https://github.com/covertness/coap-rs
A Constrained Application Protocol(CoAP) library implemented in Rust.
Last synced: 30 Dec 2025
https://github.com/Covertness/coap-rs
A Constrained Application Protocol(CoAP) library implemented in Rust.
Last synced: 20 Mar 2025
https://github.com/AVSystem/Anjay
C implementation of the client-side OMA LwM2M protocol
c coap device-management embedded iot lwm2m lwm2m-client monitoring notifications
Last synced: 20 Nov 2025
https://github.com/avsystem/anjay
C implementation of the client-side OMA LwM2M protocol
c coap device-management embedded iot lwm2m lwm2m-client monitoring notifications
Last synced: 12 Apr 2025
https://github.com/glenndehaan/ikea-tradfri-coap-docs
How can you communicate to your ikea tradfri gateway/hub through coap-client
coap coap-client docs documentation ikea ikea-gateway ikeatradfri
Last synced: 18 Jan 2026
https://github.com/plgd-dev/hub
Secure and Interoperable Internet of Things
cloud coap iot iot-cloud iotivity iotivity-lite ocf openconnectivityfoundation
Last synced: 11 Feb 2026
https://github.com/iobroker-community-adapters/iobroker.shelly
Integrate your Shelly devices into ioBroker via MQTT or CoIoT
coap home-automation iobroker iot shelly smarthome
Last synced: 26 Feb 2026
https://github.com/schmupu/ioBroker.shelly
Integrate your Shelly devices into ioBroker via MQTT or CoIoT
coap home-automation iobroker iot shelly smarthome
Last synced: 23 Feb 2025
https://github.com/iobroker-community-adapters/ioBroker.shelly
Integrate your Shelly devices into ioBroker via MQTT or CoIoT
coap home-automation iobroker iot shelly smarthome
Last synced: 14 Mar 2025
https://github.com/Lobaro/lobaro-coap
CoAP Implementation in C
c99 coap coap-client coap-server embedded iot network
Last synced: 20 Nov 2025
https://github.com/lobaro/lobaro-coap
CoAP Implementation in C
c99 coap coap-client coap-server embedded iot network
Last synced: 19 Aug 2025
https://github.com/gotthardp/gen_coap
Generic Erlang CoAP Client/Server
coap coap-client coap-resources coap-server erlang
Last synced: 12 Apr 2025
https://github.com/lupyuen/stm32bluepill-mynewt-sensor
Apache Mynewt Sensor Network Application for STM32 Blue Pill and nRF52 with Visual Rust, NB-IoT, GPS, iBeacon, NimBLE, ESP8266 (WiFi Geolocation) and nRF24L01
bme280 coap embedded-c embedded-rust esp8266 gps ibeacon iot mynewt mynewt-driver mynewt-thethings nb-iot nimble nrf24l01 nrf52 quectel rust stm32 stm32f103c8t6 udp
Last synced: 29 Jun 2025
https://github.com/hardillb/tradfri2mqtt
MQTT Bridge for IKEA TRÅDFRI Light Gateway
Last synced: 22 Mar 2025
https://github.com/hardillb/TRADFRI2MQTT
MQTT Bridge for IKEA TRÅDFRI Light Gateway
Last synced: 17 Jan 2026
https://github.com/stuffrabbit/SwiftCoAP
Swift Server/Client Implementation of CoAP - RFC 7252
coap coap-client coap-messages coap-server swift
Last synced: 05 May 2025
https://github.com/golioth/golioth-zephyr-sdk
Golioth SDK For Zephyr
coap esp32 espressif feather golioth internet-of-things iot nordic-semiconductor nordicsemi real-time-operating-system rtos zephyr zephyr-rtos
Last synced: 07 May 2025
https://github.com/chkr1011/coapnet
CoAPnet is a high performance .NET library for CoAP based communication. It provides a CoAP client and a CoAP server. It also has DTLS support out of the box.
arduino coap coap-client coap-protocol coap-server coaps home-automation internet-of-things iot smart smart-home tradfri tradfri-ikea-gateway
Last synced: 26 Mar 2025
https://github.com/darconeous/old-coap-archived
Project Moved
coap embedded-applications iot m2m smcp
Last synced: 20 Nov 2025
https://github.com/updatehub/updatehub-ce
UpdateHub Community Edition
coap firmware-update ota-server updatehub
Last synced: 14 Jul 2025
https://github.com/tibcosoftware/flogo-contrib
Flogo Contribution repo. Contains activities, triggers, models and actions.
aws-lambda coap flogo flogo-contrib http-client http-server lambda mqtt rest tensorflow
Last synced: 20 Aug 2025
https://github.com/TIBCOSoftware/flogo-contrib
Flogo Contribution repo. Contains activities, triggers, models and actions.
aws-lambda coap flogo flogo-contrib http-client http-server lambda mqtt rest tensorflow
Last synced: 03 Apr 2025
https://github.com/emqxarchive/emqx-coap
EMQX CoAP Gateway
coap coap-broker coap-gateway coap-server
Last synced: 10 Mar 2026
https://github.com/insighio/microCoAPy
A mini client/server implementation of CoAP (Constrained Application Protocol) into MicroPython
client coap coap-client coap-server esp32 esp8266 micropython pycom server
Last synced: 13 May 2025
https://github.com/insighio/microcoapy
A mini client/server implementation of CoAP (Constrained Application Protocol) into MicroPython
client coap coap-client coap-server esp32 esp8266 micropython pycom server
Last synced: 25 Oct 2025
https://github.com/absmach/magistrala
Industrial IoT Messaging and Device Management Platform
authentication authorization certificates-generator coap configuration-management devices edge edge-computing go golang iot iot-gateway iot-platform messaging mqtt web-sockets
Last synced: 06 Apr 2025
https://github.com/tzolov/coap-shell
Constrained Application Protocol (CoAP) Interactive Shell
Last synced: 21 Apr 2025
https://github.com/petereb/coap-shepherd
Network server and manager for lightweight M2M (LWM2M).
Last synced: 23 Apr 2025
https://github.com/nning/david
CoAP server with Rack interface.
coap coap-server rack rails ruby
Last synced: 05 May 2025
https://github.com/nzsmartie/coap.net
Constrained Applciaiton Protocol (CoAP) [RFC7252] for .Net Standard
Last synced: 20 Mar 2025
https://github.com/petereb/coap-node
Client node of lightweight M2M (LWM2M).
Last synced: 23 Apr 2025
https://github.com/nmeum/zig-riscv-embedded
Experimental Zig-based CoAP node for the HiFive1 RISC-V board
bare-metal coap coap-server embedded hifive1 risc-v riscv zig
Last synced: 08 Apr 2025
https://github.com/martindisch/coap-lite
A lightweight CoAP message manipulation crate, ideal for embedded environments
Last synced: 04 Apr 2025
https://github.com/open-coap/java-coap
CoAP Java library
coap coap-client coap-protocol coap-server
Last synced: 14 Jan 2026
https://github.com/darconeous/libnyoci
A flexible CoAP stack for embedded devices and computers. RFC7252 compatible.
asynchronous cli coap contiki embedded-applications iot uip
Last synced: 05 May 2025
https://github.com/emqx/coap-jmeter
CoAP JMeter Plugin
coap coap-jmeter coap-server emqx iot jmeter-plugin
Last synced: 09 Oct 2025
https://github.com/nabto/nabto-embedded-sdk
Nabto Edge Embedded SDK. Secure, direct connections to your IoT devices.
coap connectivity embedded-systems iot security
Last synced: 12 Mar 2026
https://github.com/m4n3dw0lf/securefiware
Proposing security measures and security analysis in the Fiware IoT environment.
coap dtls fiware https iot iot-platform lwm2m secure security smartcities
Last synced: 23 Mar 2025
https://github.com/m4n3dw0lf/SecureFiware
Proposing security measures and security analysis in the Fiware IoT environment.
coap dtls fiware https iot iot-platform lwm2m secure security smartcities
Last synced: 30 Mar 2025
https://github.com/me-box/zestdb
ZestDB
coap database hypercat internet-of-things iot macaroons reasonml time-series tsdb zmq
Last synced: 27 Jan 2026
https://github.com/nzsmartie/coapexplorer
A (soon to be) cross-platform tool for exploring CoAP protocol.
coap coap-client coap-explorer device-discovery reactiveui windows
Last synced: 06 Oct 2025
https://github.com/eclipse-thingweb/dart_wot
Framework to build Web of Things applications in Dart and Flutter.
coap dart flutter internetofthings iot web-of-things wot
Last synced: 24 Aug 2025
https://github.com/kamil-kielbasa/libedhoc
EDHOC (RFC 9528): Lightweight authenticated key exchange in C for IoT and constrained devices
authentication c coap constrained-devices cryptography edhoc embedded ietf iot key-exchange oscore rfc9528 rfc9529 security zephyr
Last synced: 01 Mar 2026
https://github.com/hyper-systems/ocaml-coap
Constrained Application Protocol (RFC 7252) implementation for OCaml.
Last synced: 14 Apr 2025
https://github.com/toad-lib/toad
CoAP runtime that is heap allocation and operating-system optional
coap coap-client coap-server embedded fast iot networking no-os rust safe udp
Last synced: 28 Mar 2025
https://github.com/IETF-Hackathon/ietf103-project-presentations
Presentations of project results at end of hackathon
coap dns ietf opensource quic rift standards yang
Last synced: 10 Mar 2025
https://github.com/ciscodevnet/csmp-agent-lib
OpenCSMP: CiscoDevNet Opensource CSMP-Agent Library (Formerly CSMP-Agent)
cisco coap csmp embedded fnd ieee-802154 iiot iot ipv6 mesh mesh-networks silabs wireless
Last synced: 14 Apr 2025
https://github.com/koenvervloesem/openthread-applications
Code examples, errata and additional tips and references to interesting projects for the book "Building Wireless Sensor Networks with OpenThread: Developing CoAP Applications for Thread Networks with Zephyr"
coap coap-client coap-server coaps dtls dtls-cert dtls-psk nordic-semiconductor nordicsemi nrf52 nrf52840 nrf52840-dk nrf52840-dongle nrf5x openthread openthread-application python thread zephyr zephyr-rtos
Last synced: 13 May 2025
https://github.com/mgrojo/coap_spark
Formally verified implementation of the CoAP protocol in SPARK/Ada
ada coap formal-verification iot spark-ada
Last synced: 22 Feb 2026
https://github.com/authbroker/authbroker
Authentication and Authorization module of HTTP/MQTT/CoAP Brokers based on NodeJS for IoT or Internet of Things.
aedes authentication authorization broker coap http internet-of-things iot mosca mqtt ponte
Last synced: 04 Jul 2025
https://github.com/ryankurte/rust-coap-client
An(other) Async Rust CoAP Client
Last synced: 16 Oct 2025
https://github.com/nmeum/zoap
A WiP CoAP implementation for bare-metal constrained devices in Zig
bare-metal coap coap-server embedded zig
Last synced: 08 Apr 2025
https://github.com/mdzio/veap
Very Easy Automation Protocol (VEAP) is a TCP/IP-based communication protocol for automation that is easy to understand, easy to implement and yet meets advanced requirements such as modeling data models or security requirements.
automation coap https json mqtt opc-ua protocol rest restful-api veap
Last synced: 19 Jul 2025
https://github.com/will-gxz/house-monitor-iot-system
This repository contains the source code of House Monitor Smart Home IoT System developed by Xiaozheng and Xiaofei. This is also the Master's project of Xiaozheng and Xiaofei. JavaDoc:
bootstrap coap hibernate java junit maven spring spring-mvc
Last synced: 23 Sep 2025
https://github.com/edward62740/ot-ipr
Battery powered radar indoor presence sensor with OpenThread IPv6 connectivity
coap influxdb iot ipv6 openthread presence-detection radar
Last synced: 14 Jun 2025
https://github.com/tirithen/tradfri_gateway
A rust crate for connecting to the Ikea TRÅDFRI gateway, and for controlling your home devices through the gateway.
coap dtls home-automation ikea network rust tradfri tradfri-ikea-gateway
Last synced: 15 Apr 2025
https://github.com/teslanet-nl/mule-coap-connector
Mule CoAP Connector is a Mule extension that enables Mule 4 applications to implement IoT services and/or IoT clients that use the CoAP protocol.
coap coap-client coap-protocol coap-server extension iot iot-application iot-middleware iot-platform mule mule-coap mule-esb mule4
Last synced: 11 Jan 2026
https://github.com/akhilrai28/internet-of-things
Developed under Makernova 2.0, this project explores microcontroller programming, sensor data logging, and communication protocols (MQTT, COAP, HTTP). It includes simulations in Proteus and app development using MIT App Inventor/Flutter for data visualization and control.
c coap cpp css dart flutter html http iot javascript microcontroller mit-app-inventor mqtt proteus python sensor-data
Last synced: 25 Oct 2025
https://github.com/avsystem/anjay-lite
Anjay Lite is AVSystem’s ultra-lightweight implementation of the OMA SpecWorks LwM2M protocol, purpose-built for the most resource-constrained IoT devices.
bootstrap c coap device-management embedded embedded-c internet-of-things iot lwm2m lwm2m-client lwm2m-protocol monitoring
Last synced: 15 Jun 2025
https://github.com/mobius-software-ltd/coap-parser
COAP packets and headers parser library based on netty
coap coap-parser decoding encoding
Last synced: 31 Jan 2026
https://github.com/asalabbasnejad/iot-coap-mqtt-energy
Wireshark packet analysis for CoAP and MQTT traffic, plus IoT device energy consumption estimation using real measurement data.
coap data-visualization mqtt packetsniffing wireshark
Last synced: 14 Sep 2025
https://github.com/jmendiara/shelly-driver
Shelly Devices driver for nodejs
coap coiot javascript mqtt nodejs shelly shelly-driver typescript
Last synced: 27 Feb 2025
https://github.com/cakraawijaya/iot-based-personal-collection-security-system-using-coap-communication-protocol
Raspberry x ESP32 Project | Personal Experiment
adaptor coap df-player-mini esp32 hc-sr501 hw201 iot mp3-tf16p node-red rpi-pico security-system
Last synced: 07 Apr 2025
https://github.com/teslanet-nl/mule-coap-server-connector
The CoapServer Connector adds CoAP server capability to Mule Enterprise Service Bus. Used by Mule 3 applications to implement IoT services.
anypoint-connector coap coap-protocol mule mule-applications mule-coap mulesoft
Last synced: 12 Jan 2026
https://github.com/teslanet-nl/mule-coap-client-connector
The CoapClient Connector adds CoAP client capability to Mule Enterprise Service Bus. Used by Mule 3 applications to access IoT services using the CoAP protocol.
anypoint anypoint-connector californium coap coap-client coap-protocol connector iot iot-cloud iot-middleware mule mule-coap mule-esb mulesoft-connector
Last synced: 12 Jan 2026