> For the complete documentation index, see [llms.txt](https://docs.skysens.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.skysens.io/sources/connection-types/mqtt.md). # MQTT Skysens AgPM can be connect your MQTT broker and subscribes a topic to receive data. For Adding A MQTT source, select MQTT on add new source menu.

Adding a MQTT source is three-step process: Source Information, Topic Information and Field Information.

**Source Information** To begin receiving device data, we must first establish a connection to an MQTT broker. This broker acts as the central hub, routing messages between the device and our system. Name: Descriptive name for your MQTT device Url: MQTT broker's public host name or IP address Port: MQTT broker's port number If your broker have some authentication method then select "Use Authentication" and enter the details.

**Topic Information** Topic is a string-based address used by the broker to route messages between publishers and subscribers, enabling organized, decoupled communication via a hierarchical structure and optional wildcards.

**Field Information** Field Name: An identifier for MQTT data object Field Key: Key name on MQTT data object Unit: Reading data's unit Format: Data format. Such as: int32, float