NVIDIA USDCode MCP Server

nvidia-usdcode-mcp-server

A minimal MCP server that exposes a single tool backed by NVIDIA USDCode via the NVIDIA Integrate API. Great for Isaac Sim scripting tips, USD, Python snippets, and API usage.

Requirements

Node.js 18+
An NVIDIA API key in NVIDIA_API_KEY, get it from here https://build.nvidia.com/nvidia/usdcode

You can place it in a local .env file (loaded automatically) or export it in your shell.

Quickstart

Dependencies are already vendored in this workspace. If you need to reinstall:

npm ci or npm install

Build

npm run build

Outputs to dist/.

Run (standalone)

npm start (after building)
Or directly: node --enable-source-maps dist/server.js

The server speaks MCP over stdio and is intended to be launched by an MCP-capable client.

Use with Claude Desktop

Add an entry to your ~/.claude/config.json:

{
  "mcpServers": {
    "usdcode": {
      "command": "node",
      "args": ["dist/server.js"],
      "env": { "NVIDIA_API_KEY": "YOUR_KEY" }, // if you didn't add .env to this project
      "disabled": false
    }
  }
}

Use with OpenAI Codex

Add an entry to your ~/.codex/config.toml:

[mcp_servers.usdcode]
command = "node"
args = ["/absolute/path/to/mcp-usdcode/dist/server.js"]
env = { "NVIDIA_API_KEY" = "value" }

Tool Info

name: get_usdcode_help
description: Ask NVIDIA USDCode for help.
params:
- question (string, required): Your prompt or question.
- temperature (number, optional, default 0.1)
- top_p (number, optional, default 1)
- max_tokens (integer, optional, default 1024)
- expert_type (string, optional, default "auto")

Returns a single text message with the model’s reply.

This server cannot be installed

security - not tested

license - not found

quality - not tested

How are these scores calculated?

remote-capable server

The server can be hosted and run remotely because it primarily relies on remote services or has no dependency on the local environment.

Enables users to get expert help with Isaac Sim scripting, USD (Universal Scene Description), Python snippets, and API usage through NVIDIA's USDCode AI assistant. Provides specialized guidance for 3D graphics and simulation development workflows.

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