RemoteFree server, account needed

R3 MCP server

org.r3js/r3

Build 3D web apps: physics, audio, music, Blender import. Live edits, undo, versions, publishing.

Website

Install R3 in Claude Code

Claude Code
claude mcp add --transport http r3js-r3 https://mcp.r3js.org/mcp
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "r3js-r3": {
      "url": "https://mcp.r3js.org/mcp"
    }
  }
}

Frequently asked questions

What does the R3 MCP server do?

Build 3D web apps: physics, audio, music, Blender import. Live edits, undo, versions, publishing.

Is the R3 MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does R3 run locally or remotely?

Remote. Hosted by the provider. You connect with a URL, nothing to install.

How do I add R3 to Claude Code?

Run: claude mcp add --transport http r3js-r3 https://mcp.r3js.org/mcp

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