AI tools that touch the plant.

Name: OT AI Hub tool index
License: https://creativecommons.org/licenses/by/4.0/

44 real products and papers, checked 2026-11-03. Search by name, filter by protocol, and read the caveat before you point anything at a controller. The crawlable list is the tools index.

Featured

High-signal entries. Not a paid slot.

SiemensEigen Engineering AgentSiemens agent that works inside the open TIA Portal project, then checks its result. Needs V19–V21 and a subscription.
Rockwell AutomationFactoryTalk Design Studio CopilotRockwell's assistant in FactoryTalk Design Studio for Logix code and device changes. You review before anything is applied.
CODESYSCODESYS Development System MCP ServerOfficial CODESYS add-on. An MCP client can read and write Structured Text in the project you have open.
ProxusProxus Industrial MCP ServerRead-only Modbus TCP and OPC UA, with named register maps. No tool in this server writes to a device.
LADXLADXFree browser workbench for ladder and structured text, with a checker. It does not download to a live controller.
AutoFactory-BenchAutoFactory-BenchClosed-loop scores for one Structured Text file per factory task. The public ranking is the 30 Hard tasks.

OPC UA MCP servers compared by what they let an agent write.

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