dlubal-mcp 1.0.3

MCP server enabling AI tools to interact with running Dlubal structural analysis applications (RFEM 6, RSTAB 9, RSECTION 1)

dlubal-mcp

Model Context Protocol (MCP) server that enables AI tools and large language models (LLMs) to interact with running Dlubal structural analysis applications.

Built on top of the dlubal.api gRPC client library, dlubal-mcp exposes tools that AI assistants can call directly to do modelling, analysis or reading results through the API scripts.

Supported Applications

Application	Script Tool
RFEM 6 — Finite Element Analysis	run_rfem_script
RSTAB 9 — Frame and Truss Analysis	run_rstab_script
RSECTION 1 — Cross-Section Analysis	run_rsection_script

How It Works

dlubal-mcp acts as a bridge between an AI assistant and a running Dlubal application. The application must already be open and its API service active — the MCP server connects to the live session, it does not launch applications itself.

1. Start RFEM 6, RSTAB 9, or RSECTION 1 on your machine
2. Launch the MCP server with proper settings (urls, API ports)
3. An AI tool calls e.g. run_rfem_script with Python code
4. The code executes against the live application and returns the output

LLM Responsibility for API Scripts

The run_rfem_script, run_rstab_script, and run_rsection_script tools execute arbitrary Python code against the live application. The LLM is responsible for composing correct and valid API scripts — the MCP server simply runs whatever code it receives and returns the output or any errors.

To write correct scripts, the LLM should consult the Dlubal API Documentation, which covers all available objects, methods, and usage patterns for the gRPC-based API.

Requirements

• Python 3.11 or higher
• A running Dlubal application (RFEM 6, RSTAB 9, or RSECTION 1)
• Active API Service subscription — see dlubal.api for details

Installation

pip install "dlubal-mcp[rfem]"      # RFEM 6
pip install "dlubal-mcp[rstab]"     # RSTAB 9
pip install "dlubal-mcp[rsection]"  # RSECTION 1
pip install "dlubal-mcp[all]"       # All products

Available MCP Tools

Tool	Description
run_rfem_script	Execute Python code against a running RFEM 6 instance
run_rstab_script	Execute Python code against a running RSTAB 9 instance
run_rsection_script	Execute Python code against a running RSECTION 1 instance
health_check	Server status: installed products, running state, available tools

Related

• dlubal.api — the underlying gRPC client library
• Dlubal API Documentation — reference for all API objects and methods used in scripts
• Dlubal Software