MCP server CX Codex

OpenSysML MCP server — Claude Code MCP server: features and setup

Q: How do I install OpenSysML MCP server in Claude Code?

Run `claude mcp add sysml-mcp -- npx -y @openmbee/sysml-mcp`. This registers the `sysml-mcp` server.

Give coding agents tools to inspect and edit SysML v2 and KerML workspaces, run models, and use REPL sessions.

Install into Claude Code · Platform CLI All methods and platforms ↓

claude mcp add sysml-mcp -- npx -y @openmbee/sysml-mcp

Open on GitHub

What OpenSysML MCP server does

OpenSysML MCP server connects an agent to SysML v2 and KerML tooling. It supports workspace diagnostics and edits, model execution, and interactive REPL sessions.

For Claude Code, the setup registers sysml-mcp and launches @openmbee/sysml-mcp through npx. That means projects with restrictions on running packages through npx need to account for this setup. The listed platforms also include Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, and Zed.

What it helps with

inspect diagnostics in a SysML v2 workspace
edit a SysML v2 or KerML model through an agent
run a model from the coding workflow
work with a model in a REPL session

Example prompts for the agent

Check this SysML v2 workspace and explain the diagnostics.
Edit this model, then run it.
Start a REPL session for working with this KerML model.

How to install OpenSysML MCP server

Platform CLI

claude mcp add sysml-mcp -- npx -y @openmbee/sysml-mcp

Platform CLI

codex mcp add sysml-mcp -- npx -y @openmbee/sysml-mcp

Config file

{
    "mcpServers": {
        "sysml-mcp": {
            "command": "npx",
            "args": [
                "-y",
                "@openmbee/sysml-mcp"
            ]
        }
    }
}

Config file

{
    "servers": {
        "sysml-mcp": {
            "type": "stdio",
            "command": "npx",
            "args": [
                "-y",
                "@openmbee/sysml-mcp"
            ]
        }
    }
}

Platform CLI

gemini mcp add sysml-mcp npx -y @openmbee/sysml-mcp

Step by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more

Questions about OpenSysML MCP server

How do I install OpenSysML MCP server in Claude Code?

Run claude mcp add sysml-mcp -- npx -y @openmbee/sysml-mcp. This registers the sysml-mcp server.

What does OpenSysML MCP server do?

It gives agents tools for workspace diagnostics and edits in SysML v2 and KerML, along with model execution and REPL sessions.

Which platforms are listed for OpenSysML MCP server?

The listed options include Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, and Zed.

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