Show HN: I built a middleware agent that turns PLC data into REST/gRPC APIs

Category: infrastructure

Tags: plc, industrial-iot, middleware, rest-api, grpc

Score: 5.3/10 (Innovation: 4, Technical: 6, Documentation: 6, Utility: 6)

Limen Edge is an open-source middleware agent that bridges industrial PLC (Programmable Logic Controller) data to modern REST and gRPC APIs, enabling factory floor integration with cloud and application ecosystems. Its CLI-first setup and focus on real-time data collection and OEE metrics make it a practical tool for IIoT scenarios. The project is interesting for addressing the gap between legacy industrial protocols and contemporary API-driven development.

Target audience: backend devs, devops, data engineers

Repository: https://limenedge.com/docs/getting-started

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