OBS MCP

OBS-MCP connects any MCP-compatible AI assistant to OBS Studio, giving it full control over your stream and recordings through 147 tools covering the entire obs-websocket v5 protocol — scenes, sources, scene items, inputs and the full audio mixer, filters, transitions, streaming, recording, virtual camera, replay buffer, media playback, studio mode, and objective output stats. On top of raw control, it ships pipeline tools that do the actual job in one call instead of making the AI hand-assemble a filter chain — clean_audio_input builds a verified Noise Gate → Noise Suppression → Compressor chain instead of guessing at OBS's internal filter parameter names.

OBS-MCP itself runs entirely on your machine. It's a local WebSocket client that talks directly to OBS Studio's built-in obs-websocket server — your stream, recordings, and scene setup never leave your computer. The AI "brain" lives wherever you already run it: Claude Desktop / Claude Code / Cursor / any MCP client. You bring the AI, OBS-MCP handles OBS.

Works With

OBS-MCP works with any AI client that supports the Model Context Protocol:

• Claude Desktop — Anthropic's desktop app

• Claude Code — CLI agent

• Cursor — AI code editor with MCP support

• Any other MCP-compatible client

Quick Start

1. Get OBS-MCP

Option A: Click the green Code button above → Download ZIP → extract to a folder

Option B: Clone with git:

git clone https://github.com/xDarkzx/OBS_MCP.git

2. Install

cd OBS_MCP
pip install -e .

This gives you the obs-mcp command.

3. Enable the WebSocket server in OBS

OBS Studio ships obs-websocket built in since v28 — nothing to install.

1. Open OBS Studio.

2. Tools → WebSocket Server Settings.

3. Check Enable WebSocket server.

4. Note the Server Port (default 4455) and, if you set one, the Server Password.

4. Add OBS-MCP to your AI client

{
  "mcpServers": {
    "obs": {
      "command": "obs-mcp",
      "env": {
        "OBS_HOST": "localhost",
        "OBS_PORT": "4455",
        "OBS_PASSWORD": "your_password_here"
      }
    }
  }
}

Leave OBS_PASSWORD empty ("") if you didn't set one in OBS. Check your client's MCP documentation for the config file location.

5. Talk to your AI

With OBS running and the WebSocket server enabled, ask your AI assistant to switch scenes, start streaming, clean up your mic audio, or check your dropped-frame stats — it now has real tools to do it.

Related MCP server: ATEM MCP Server

Features

147 tools total — full coverage of the obs-websocket v5 protocol (the one intentional omission, Sleep, only functions inside request batches, which this version doesn't implement yet).

clean_audio_input — the pipeline tool

Every other tool here is a thin, faithful wrapper over one obs-websocket request. This one isn't — it's the actual thing a streamer wants ("make my mic sound clean") instead of the mechanism ("create three filters with the right internal parameter names in the right order"):

clean_audio_input(input_name="Mic/Aux")

Builds a Noise Gate → Noise Suppression (RNNoise) → Compressor chain in the correct signal order, using parameter keys verified against OBS Studio's actual filter source (plugins/obs-filters/*.c) — not guessed from the UI. Skips any stage that's already present instead of duplicating it.

Requirements

• OBS Studio 28+ (obs-websocket v5 ships built in from v28 onward)

• Python 3.10+

• An MCP-compatible AI client

Troubleshooting

Development

# Install dev dependencies
pip install -e ".[dev]"

# Run tests
pytest tests/ -x -q

Adding New Tools

1. Create a module in obs_mcp/tools/ (or add to an existing one).

2. Export a register(mcp: FastMCP) function.

3. Define your tools with @mcp.tool() decorators, calling client.execute("RequestType", **params).

4. Add the module name to _EXPECTED_MODULES in tool_registry.py.

5. That's it — the tool registry auto-discovers it on startup.

See CONTRIBUTING.md for full guidelines.

Support

Found a bug or want a feature? Open an issue.

If OBS-MCP has helped your stream, consider buying me a coffee:

Your support helps keep this project maintained and free for everyone.

Documentation

• Installation Guide — Detailed setup for Windows, macOS, Linux and every supported MCP client

• Tools Reference — Every tool grouped by domain, with a one-line description and signature

• Architecture — Connection layer, tool registry, pipeline tools, protocol reference

• Contributing — How to add tools and contribute

• Changelog — Version history and release notes

License

Apache License 2.0 — see LICENSE for details.

Built by Daniel Hodgetts • 𝕏 @daehonz1