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Server addresshttps://mcp.plcs.ai/mcp
- What it can do
- Query Allen-Bradley and Siemens PLC projects, live tag values, and analyses in plain English.
- Sign-in
- Required. You sign in with your own account when you connect, using OAuth.
- Cost
- Not verified. What you can do through it may depend on your PLCs.ai plan, so check that your plan includes MCP or API access.
- How we know it's official
- Published in the official MCP Registry as ai.plcs/plcs-ai, under the vendor's verified namespace. Checked 2026-11-12. Vendor's MCP guide ↗
Claude
Go to Customize › Connectors, select + Add, then Add custom connector. Enter a name, paste the server address and select Continue. When asked, choose to sign in and log in to your PLCs.ai account. Turn it on in a chat from the + menu under Connectors. Free plans can add one custom connector; on Team and Enterprise an owner adds it for the organisation.
Claude help ↗ChatGPT
Custom MCP servers are available on ChatGPT Business, Enterprise and Edu, on the web. An admin or owner, or an authorised member on Enterprise and Edu, goes to Plugins, selects + then Add custom MCP server, pastes the server address, sets up authentication and accepts the risk notice.
OpenAI help ↗Other assistants and editors
Add a remote MCP server using this address. Clients that support Streamable HTTP, the current MCP transport, accept it directly. Menu names vary by client.