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mcp/harbor
Claude Desktop

VRChat MCP for Claude Desktop

io.github.basic-bit/vrchat-mcp

MCP server for VRChat friends, worlds, groups, events, notifications, and VRCX history.

client:Claude Desktop transport:stdio runtime:npm

Install VRChat MCP in Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json · windows: %APPDATA%\Claude\claude_desktop_config.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "vrchat-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@basicbit/vrchat-mcp"
      ],
      "env": {
        "VRCHAT_MCP_CONFIG_FILE": "<VRCHAT_MCP_CONFIG_FILE>",
        "VRCHAT_MCP_USER_AGENT": "<VRCHAT_MCP_USER_AGENT>",
        "VRCHAT_MCP_LOG_LEVEL": "<VRCHAT_MCP_LOG_LEVEL>",
        "VRCHAT_MCP_COOKIE_STORE": "<VRCHAT_MCP_COOKIE_STORE>",
        "VRCHAT_MCP_COOKIE_FILE": "<VRCHAT_MCP_COOKIE_FILE>",
        "VRCHAT_MCP_ALLOW_WRITES": "<VRCHAT_MCP_ALLOW_WRITES>",
        "VRCHAT_MCP_UPLOAD_ROOTS": "<VRCHAT_MCP_UPLOAD_ROOTS>"
      }
    }
  }
}

Settings → Developer → Edit Config opens this file. Restart the app after saving. Claude Desktop docs

VRChat MCP in other clients

VRChat MCP MCP server