A popular open-source automation tool. Node-RED provides a low-code, flow-based editor for connecting APIs, devices, and online services. Users build “flows” by wiring together nodes representing inputs, logic, and outputs. It’s commonly used for event-driven automation: flows can collect market data, apply filters or transformations, and then trigger actions (like placing a trade) on various services. Node-RED’s goal is to enable anyone to build applications that collect, transform and visualize real-time data, automating tasks in finance or home automation alike.

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