Vrchat MCP Osc MCP Server

Vrchat MCP Osc becomes available to MCP clients through the vrchat mcp osc mcp server. vrchat-mcp-osc - VRChat AI Assistant Integration.

What Vrchat MCP Osc does

By leveraging OSC (Open Sound Control) to communicate with VRChat, VRChat MCP OSC allows AI assistants such as Claude to: - Control avatar parameters and expressions - Send messages in VRChat - Respond to various VR events And more—all through the high-level API provided by the Model Context Protocol.

Key capabilities

• Avatar Control — Manipulate avatar parameters and expressions
• Movement Control — Direct avatar movement and orientation
• Communication — Send messages through VRChat's chatbox
• Menu Access — Toggle VRChat menu and interface elements
• Avatar Information — Query avatar properties and parameters
• Seamless VRChat Integration — Automatic detection of avatar configurations

Tools it exposes

Once connected, the assistant can call these 10 tools directly:

• get_avatar_name — Retrieves the current avatar's name
• get_avatar_parameters — Lists available avatar parameters
• set_avatar_parameter — Sets a specific avatar parameter
• set_emote_parameter — Triggers avatar emotes
• move_avatar — Moves the avatar in a specific direction
• look_direction — Controls avatar's view direction
• jump — Makes the avatar jump
• menu — Toggles the VRChat menu
• voice — Toggles voice features
• send_message — Sends a message to the VRChat chatbox

Installing the vrchat mcp osc mcp server

The server is distributed via npm as vrchat-mcp-osc, so most clients can run it without a manual build step. Add it to your MCP client's configuration and restart the client to pick it up — the copy-paste configs for Claude Desktop, Claude Code and Cursor are on this page.

Where it fits

Developer-tool servers are usually the first ones people connect, because they turn "help me with this code" into an assistant that can actually read the repo and act on it. Vrchat MCP Osc sits in that group, and the shape of its toolset — get_avatar_name, get_avatar_parameters, set_avatar_parameter among others — tells you what it is really for. Worth comparing against the other developer tools servers in this directory before you commit to one, since several overlap in scope but differ sharply in setup cost and permissions.

Practical notes

• This server runs locally, so it operates with whatever access your machine and its credentials already have. Scope that deliberately rather than by default.
• With 10 tools exposed, expect a noticeable bump in prompt size — disable it in projects that never use Vrchat MCP Osc.
• Maintained by Krekun, written in TypeScript.
• MCP clients ask for confirmation before each tool call by default. Keep that on while you learn what the vrchat mcp osc mcp server actually does with your data.
• Every entry in this directory is reviewed by hand before it goes live, and details are checked against the project's own documentation.