PLCs.ai is a Model Context Protocol (MCP) server: Query Allen-Bradley and Siemens PLC projects, live tag values, and analyses in plain English. Because it speaks the Model Context Protocol, AI assistants can use PLCs.ai as a set of callable tools instead of you copy-pasting between apps.
It's a hosted (remote) server — point your client at https://mcp.plcs.ai/mcp and you're connected, with nothing to install locally. The current release is v1.0.0, with source at PLCsai/plcs-ai-mcp on GitHub.
On mcp.site, PLCs.ai sits in the AI & Agents category. Any MCP client can use it — Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed among them — via the install snippets below. If you maintain PLCs.ai for plcs.ai, claim this listing to verify ownership, earn the Verified badge, and keep the details current.