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three.ws Assistant Widget

local MCP server

three.ws Assistant Widget is a local MCP server: Generate a paste-ready embed for a floating 3D avatar chatbot on any website. Install it from npm as @three-ws/assistant-mcp.

Installation

Terminal

claude mcp add assistant-widget -e THREE_WS_BASE=... -- npx -y @three-ws/assistant-mcp

Run in your project folder. Add --scope user to use it everywhere.

Claude Desktop, Cursor & other clients

Add to claude_desktop_config.json or .cursor/mcp.json.

{
  "mcpServers": {
    "assistant-widget": {
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/assistant-mcp"
      ],
      "env": {
        "THREE_WS_BASE": "..."
      }
    }
  }
}

Fill in the environment variables with your own credentials.

What you need

  • Runtime: Node.js 18+ (runs with npx).
  • MCP client: Claude Code, Codex, Antigravity, Claude Desktop, Cursor or any other client that speaks MCP over stdio.
  • Environment variables: THREE_WS_BASE

Summary

Generate a paste-ready embed for a floating 3D avatar chatbot on any website.

three.ws Assistant Widget vs similar servers

ServerStarsTypeAPI keyRuntime
three.ws Assistant Widget218LocalYesnpm
three.ws Concierge218LocalYesnpm
three.ws 3D Studio218HostedNoNone
three.ws 3D Studio (free)218HostedNoNone
three.ws Avatars218LocalYesnpm

Questions

It reads one environment variable: THREE_WS_BASE. Set them in your MCP config before starting the server.

Node.js 18+ (runs with npx), plus an MCP client such as Claude Code, Codex, Claude Desktop or Cursor.

three.ws Assistant Widget is a local MCP server distributed as the npm package @three-ws/assistant-mcp.

Run: claude mcp add assistant-widget -e THREE_WS_BASE=... -- npx -y @three-ws/assistant-mcp

Run: codex mcp add assistant-widget --env THREE_WS_BASE=... -- npx -y @three-ws/assistant-mcp

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