Company

PLCs: MCP servers, APIs and tools

6 servers in the catalogue mention PLCs. The official ones were published by the owner of plcs.ai, which the MCP Registry verified; the rest are made by others.

Official PLCs servers

• PLCs.ai Needs a sign-in or key
  Query Allen-Bradley and Siemens PLC projects, live tag values, and analyses in plain English.

Other MCP servers for PLCs

• PLC Cloud Sim — LAD/SCL simulation over MCP Needs a sign-in or key
  Cloud PLC simulator: validate and step-run LAD/SCL programs, run scenarios, return PASS/FAIL.
• plctap Runs on your computer
  Agent-PLC MCP Server: read & diagnose Modbus / FINS / MELSEC / S7 / IEC 104 / ENIP / OPC UA PLCs.
• plcsense Verified publisher · Runs on your computer
  Read-only TwinCAT ST intelligence: resolve symbols, library APIs, docs, validate PLC code.
• Atproto-mcp Taproot: get_account_history Verified publisher · Working at last check
  An account's history from its PLC audit log: handle changes, PDS migrations, signing-key rotations, and creation time. did:plc accounts only (did:web has no…
• Numbers Verified publisher · Busy at last check
  Number utilities MCP.
• WAGO PLC Runs on your computer
  Read and monitor WAGO PLC parameters over the WDA REST API. Read-only unless writes are allowed.
• Deepl Verified publisher · Busy at last check
  DeepL MCP.
• Blog Cursos: search_posts Verified publisher · Working at last check
  Busca artículos del blog de Programación Siemens por tema (TIA Portal, SCL, AWL, PROFINET, HMI, PLC Siemens...).
• Openentity: openentity_resolve Verified publisher · Working at last check
  Resolve a DID (did:key, did:web, did:webvh, did:pkh, did:plc) to its DID document.
• Roblox Verified publisher · Busy at last check
  Roblox MCP.
• petro-mcp Runs on your computer
  MCP server for petroleum engineering: LAS logs, decline curves, PVT, petrophysics, volumetrics.
• Factorytalk Import Preflight: audit_factorytalk_import Working at last check
  Check supplied FactoryTalk View tag, digital-alarm or analog-alarm CSV text before import. Use this compatibility name when an existing FactoryTalk Preflight…
• Uniwire: list_examples Verified publisher · Working at last check
  List the 52 example installations (dwellings, shops, offices, workshops, PV, EV charging, UPS, MV/LV substations, PLCs): name, title, language,…
• Rebrickable Verified publisher · Busy at last check
  Rebrickable MCP.

Command-line tools

• libplctag
  Portable and simple API for accessing AB PLC data over Ethernet
• pocl
  Portable Computing Language
• clp
  Linear programming solver
• copia-cli
  copia-cli (Windows package; no description in the winget index) cli git devops source-control copia industrial-automation plc
• pcl
  Library for 2D/3D image and point cloud processing
• pce
  PC emulator

All topics and companies

Listing text is written by each tool's maker; AptLynx lists tools and does not vouch for them.