RFEM / RSTAB MCP servers and AI agent skills

How AI connects to RFEM / RSTAB

An MCP server or skill can only do what RFEM / RSTAB lets programs do. RFEM / RSTAB exposes 2 automation interfaces:

• Dlubal API Service (gRPC) and dlubal.api (Python): The current Dlubal API is a gRPC service built into RFEM 6, RSTAB 9 and RSECTION 1, reached from Python through the dlubal.api package. RFEM listens on local port 9000, RSTAB on 9001 and RSECTION on 9002 by default. Calls need an API key generated in the Dlubal Extranet, and Core API calls are counted against your subscription; Dlubal offers a free plan for learning and small scripts. Documentation
• Webservice clients for C# and Python (.NET): Dlubal also maintains client libraries on GitHub for the Web Services interface of RFEM 6 and RSTAB 9, including a C# library with high-level functions. Use the one that matches your licence and version; the MCP server is built only on the newer gRPC dlubal.api. Documentation

What Dlubal offers

Dlubal added an MCP server to the standard RFEM 6 installation from version 6.13.0002 (January 2026) and documents it on its API site, with setup for Claude Code and Codex. The same server also serves Dlubal CALC, Dlubal's browser-based tool, through its HTTP transport and a connector. Dlubal warns that AI requests count toward the API Service quota.

Checked 4 Nov 2026. Sources: Dlubal knowledge base: Integration of RFEM 6 into AI applications via MCP server, Dlubal API documentation, MCP Server installation, dlubal-mcp on PyPI

What you can do with RFEM / RSTAB and AI

• Write and run a dlubal.api script that builds an RFEM 6 frame or plate model, assigns materials and cross-sections and calculates it, all from a plain-language brief.
• Read member internal forces and node deformations from a calculated RFEM model through the read-only results tool, without letting the agent change the model.
• Run the same script tools against RSTAB 9 for frame and truss models, or RSECTION 1 for cross-section properties.
• Withhold the free-form script tools with DLUBAL_MCP_ALLOW_SCRIPTS=false when you only want the agent to read results.

Taken from the listings' own documentation. Check each listing for exactly what it supports.

Installing

The listings here document setup for Claude Code, Codex, Cursor and VS Code. Install steps, copied from each project's own documentation, are on each listing's page. Most RFEM / RSTAB integrations run on your own computer next to RFEM / RSTAB, so you need RFEM / RSTAB installed and licensed on the same machine unless the listing says otherwise.