> For the complete documentation index, see [llms.txt](https://doc.yuncitys.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.yuncitys.com/xie-yi-jie-kou.md). # 应用开发指南及协议API 平台API包含两个主要部分：设备接入协议API和服务器端Rest API。 设备API按支持的通信协议：MQTT API，CoAP API，HTTP API **MQTT端口：**47.106.143.1:1883 **HTTP端口：** **COAP端口：**47.106.143.1:5663 ####