vrchat-mcp

vrchat-mcp

A Model Context Protocol (MCP) server for structured VRChat API interaction.

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vrchat-mcp is an MCP server that enables structured and standardized interactions with the VRChat API. It offers a suite of tools to access and manage user, friend, avatar, world, group, favorite, invite, and notification data within VRChat. The server is designed for easy integration with applications like Claude Desktop and supports authentication, retrieval, and manipulation of key VRChat entities. It provides simple deployment and debugging options for developers.

Key Features

Implements Model Context Protocol for VRChat
Provides tools for user, friend, and group management
Supports avatar searching and switching
Facilitates world searching and favorite management
Handles instance creation and retrieval
Manages friend requests and invitations
Retrieves notifications and invite messages
Works seamlessly with Claude Desktop
Supports authentication via environment variables
Offers debugging tips and MCP Inspector integration

Use Cases

Integrating VRChat data access into third-party applications
Automating avatar and world selection in VRChat
Managing friends, groups, and favorites programmatically
Enabling users to interact with VRChat from platforms like Claude Desktop
Retrieving and handling notifications and invitations from VRChat
Facilitating group searches and joining via standardized tools
Centralizing VRChat account and content management for users
Streamlining deployment of VRChat tools for developers
Debugging and inspecting VRChat-related context protocols
Enhancing chatbot or assistant capabilities with VRChat connectivity

README

VRChat MCP

npm version License: MIT

日本語 | 한국어

This project is a Model Context Protocol (MCP) server for interacting with the VRChat API. It allows you to retrieve various information from VRChat using a standardized protocol.

Overview

The VRChat MCP server provides a way to access VRChat's API endpoints in a structured manner. It supports a wide range of functionalities, including user authentication, retrieving user and friend information, accessing avatar and world data, and more.

Usage

To start the server, ensure you have the necessary environment variables set:

bash
export VRCHAT_USERNAME=your_username
export VRCHAT_AUTH_TOKEN=your_auth_token

[!NOTE]

How to obtain AUTH TOKEN

You can use the following command to login and obtain an auth token:

$ npx vrchat-auth-token-checker

VRChat Username: your-username
Password: ********

# If 2FA is enabled
2FA Code: 123456

# Success output
Auth Token: authcookie-xxxxx

Command source code

Please handle the obtained token with care as it has a very long lifetime

Then, run the following command:

bash
npx vrchat-mcp

This will launch the MCP server, allowing you to interact with the VRChat API through the defined tools.

Usage with Claude Desktop

To use this MCP server with Claude Desktop, you do not need to run npx vrchat-mcp manually. Instead, add the following configuration to your Claude Desktop config file:

  • MacOS: ~/Library/Application Support/Claude/claude_desktop_config.json
  • Windows: %APPDATA%\Claude\claude_desktop_config.json
json
{
  "mcpServers": {
    "vrchat-mcp": {
      "command": "npx",
      "args": ["vrchat-mcp"],
      "env": {
        "VRCHAT_USERNAME": "your-username",
        "VRCHAT_AUTH_TOKEN": "your-auth-token"
      }
    }
  }
}

Then, start Claude Desktop as usual. If you have to use nodenv or nvm, you may need to specify the full path to the npx command.

Available Tools

This Model Context Protocol server provides the following VRChat-related tools:

User Related

  • vrchat_get_friends_list: Get a list of friends
  • vrchat_send_friend_request: Send a friend request

Avatar Related

  • vrchat_search_avatars: Search for avatars
  • vrchat_select_avatar: Select and switch to a specific avatar

World Related

  • vrchat_search_worlds: Search for worlds
  • vrchat_list_favorited_worlds: Get a list of favorited worlds

Instance Related

  • vrchat_create_instance: Create a new instance
  • vrchat_get_instance: Get information about a specific instance

Group Related

  • vrchat_search_groups: Search for groups
  • vrchat_join_group: Join a group

Favorites Related

  • vrchat_list_favorites: Get a list of favorites
  • vrchat_add_favorite: Add a new favorite
  • vrchat_list_favorite_groups: Get a list of favorite groups

Invite Related

  • vrchat_list_invite_messages: Get a list of invite messages
  • vrchat_request_invite: Request an invite
  • vrchat_get_invite_message: Get a specific invite message

Notification Related

  • vrchat_get_notifications: Get a list of notifications

Debugging

First, build the project:

bash
npm install
npm run build

Since MCP servers run over stdio, debugging can be challenging. For the best debugging experience, we strongly recommend using the MCP Inspector.

You can launch the MCP Inspector via npm with this command:

bash
npx @modelcontextprotocol/inspector "./dist/main.js"

Be sure that environment variables are properly configured.

Upon launching, the Inspector will display a URL that you can access in your browser to begin debugging.

Publishing

To publish a new version of the package, follow these steps:

  1. Pull the latest code from the main branch

    bash
    git checkout main
    git pull origin main
    
  2. Build the package

    bash
    npm run build
    
  3. Publish to npm

    bash
    npm publish
    
  4. Push changes to the remote repository

    bash
    git push origin main --tags
    

Contributing

Contributions are welcome! Please fork the repository and submit a pull request for any improvements or bug fixes.

License

This project is licensed under the MIT License. See the LICENSE file for details.

Star History

Star History Chart

Repository Owner

sawa-zen
sawa-zen

User

Repository Details

Language TypeScript
Default Branch main
Size 545 KB
Contributors 1
License MIT License
MCP Verified Nov 11, 2025

Programming Languages

TypeScript
91.61%
JavaScript
8.39%

Tags

Topics

ai claude cline mcp vrchat

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