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Vrchat MCP Server

by BASIC BIT
Developer ToolsUse Caution4.3MCP RegistryLocal
Free

Server data from the Official MCP Registry

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

About

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

Security Report

4.3
Use Caution4.3High Risk

VRChat MCP is a well-structured local MCP server with thoughtful security design for its intended use case. Authentication is properly scoped to local browser-based login with credential storage in OS keychains. The codebase shows good practices around permission boundaries (stdio by default, loopback-only HTTP), though the breadth of VRChat API access through generated read/write routers and the ability to perform account actions warrant user awareness. Minor code quality concerns and lack of explicit audit logging for sensitive operations are present but do not constitute critical vulnerabilities. Supply chain analysis found 5 known vulnerabilities in dependencies (0 critical, 2 high severity). Package verification found 1 issue.

3 files analyzed · 12 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

File System Read

Reads files on your machine. Normal for tools that analyze or process local data.

File System Write

Writes or modifies files on your machine. Check that this is expected for the tool.

HTTP Network Access

Connects to external APIs or services over the internet.

env_vars

Check that this permission is expected for this type of plugin.

process_spawn

Check that this permission is expected for this type of plugin.

clipboard

Check that this permission is expected for this type of plugin.

What You'll Need

Set these up before or after installing:

Path to a JSON config file for settings not supplied through environment variables.Optional

Environment variable: VRCHAT_MCP_CONFIG_FILE

Descriptive User-Agent for VRChat API requests.Optional

Environment variable: VRCHAT_MCP_USER_AGENT

Log level for stderr diagnostics.Optional

Environment variable: VRCHAT_MCP_LOG_LEVEL

Cookie storage backend for VRChat authentication. The keychain mode falls back to file storage if the OS keychain is unavailable.Optional

Environment variable: VRCHAT_MCP_COOKIE_STORE

Cookie file path used when VRCHAT_MCP_COOKIE_STORE is file.Optional

Environment variable: VRCHAT_MCP_COOKIE_FILE

Allow non-GET VRChat API write operations. Defaults to true for local full-capability use; set to false for read-only mode.Optional

Environment variable: VRCHAT_MCP_ALLOW_WRITES

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-basic-bit-vrchat-mcp": {
      "env": {
        "VRCHAT_MCP_LOG_LEVEL": "your-vrchat-mcp-log-level-here",
        "VRCHAT_MCP_USER_AGENT": "your-vrchat-mcp-user-agent-here",
        "VRCHAT_MCP_CONFIG_FILE": "your-vrchat-mcp-config-file-here",
        "VRCHAT_MCP_COOKIE_FILE": "your-vrchat-mcp-cookie-file-here",
        "VRCHAT_MCP_ALLOW_WRITES": "your-vrchat-mcp-allow-writes-here",
        "VRCHAT_MCP_COOKIE_STORE": "your-vrchat-mcp-cookie-store-here"
      },
      "args": [
        "-y",
        "@basicbit/vrchat-mcp"
      ],
      "command": "npx"
    }
  }
}

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Vrchat MCP Server - MCP server for VRChat friends, worlds, groups, events, | MCP Marketplace