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nvidia-isaac-mcp

by nullbyte91

NVIDIA Isaac MCP

MCP (Model Context Protocol) server for NVIDIA Isaac Sim & Isaac Lab — enables AI tools like Windsurf, Claude Desktop, and Claude Code to control Isaac Sim through natural language.

Architecture

AI Client (Windsurf/Claude)  ←— MCP (stdio) —→  nvidia-isaac-mcp (this package)
                                                       │
                                                  TCP Socket :9876
                                                       │
                                                  isaacsim.mcp.server
                                                  (Extension inside Isaac Sim)

Two components:

  1. Isaac Sim Extension (exts/isaacsim.mcp.server/) — runs inside Isaac Sim, listens on TCP port 9876

  2. MCP Server (src/nvidia_isaac_mcp/) — external Python process that AI tools connect to

Related MCP server: Isaac Sim MCP Server

Prerequisites

  • NVIDIA Isaac Sim 5.x

  • Python 3.10+

  • uv (recommended)

Setup

1. Start Isaac Sim with the extension

cd <your-isaac-sim-install>
bash isaac-sim.sh \
    --ext-folder <path-to-nvidia-isaac-mcp>/exts \
    --enable isaacsim.mcp.server

The extension will start listening on 127.0.0.1:9876.

2. Run the MCP server

cd <path-to-nvidia-isaac-mcp>
uv run nvidia-isaac-mcp

3. Configure your AI tool

Windsurf / Claude Desktop — add to MCP settings:

{
    "mcpServers": {
        "isaac-sim": {
            "command": "uv",
            "args": ["run", "--directory", "<path-to-nvidia-isaac-mcp>", "nvidia-isaac-mcp"]
        }
    }
}

Available Tools

Core

Tool

Description

ping

Check connectivity to Isaac Sim and return server version

Scene Inspection

Tool

Description

get_stage_info

Overview of the current USD stage (prims, up-axis, etc.)

get_prim_info

Detailed info about a specific prim (attributes, transform, children)

Prim CRUD

Tool

Description

create_prim

Create a USD prim (Cube, Sphere, Cylinder, Cone, Plane, Capsule, Xform)

modify_prim

Modify a prim's transform or visibility

delete_prim

Remove a prim from the stage

Code Execution

Tool

Description

execute_code

Run arbitrary Python code inside Isaac Sim's runtime

Physics & Simulation

Tool

Description

create_physics_scene

Create a PhysicsScene prim to enable simulation

add_rigid_body

Add rigid body physics to an existing prim

add_ground_plane

Add a physics-enabled ground plane

simulation_control

Play, pause, or stop the simulation

Robots & Assets

Tool

Description

spawn_robot

Spawn a built-in robot (franka, ur10, jetbot, etc.)

list_available_robots

List available built-in robot assets

load_usd_asset

Load any USD file as a reference into the stage

Testing

# Direct TCP test (no MCP server needed, just the extension)
python tests/test_e2e.py

# MCP inspector
uv run mcp dev src/nvidia_isaac_mcp/server.py

Environment Variables

Variable

Default

Description

ISAAC_SIM_HOST

127.0.0.1

Extension socket host

ISAAC_SIM_PORT

9876

Extension socket port

A
license - permissive license
-
quality - not tested
D
maintenance

Maintenance

Maintainers
Response time
Release cycle
Releases (12mo)
Commit activity

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