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obs-mcp-server

by LarsCanGit
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obs-mcp-server

An MCP (Model Context Protocol) server for controlling OBS Studio via the built-in obs-websocket plugin. Lets Claude control your scenes, recording, streaming, audio, and more.

Requirements

  • OBS Studio 28 or later (obs-websocket is built in)

  • Node.js 18 or later

Related MCP server: LMStudio-MCP

OBS Setup

  1. Open OBS Studio

  2. Go to Tools → WebSocket Server Settings

  3. Check Enable WebSocket server

  4. Set a password (recommended)

  5. Note the port (default: 4455)

Installation

npm install

Create a .env file in the project root:

OBS_WS_URL=ws://localhost:4455
OBS_WS_PASSWORD=your_password_here

Claude Desktop Config

Add the following to your claude_desktop_config.json:

{
  "mcpServers": {
    "obs": {
      "command": "node",
      "args": ["C:\\path\\to\\obs-mcp-server\\obs-mcp-server.js"]
    }
  }
}

Or use npx (no cloning required):

{
  "mcpServers": {
    "obs": {
      "command": "npx",
      "args": ["-y", "obs-mcp-server"],
      "env": {
        "OBS_WS_PASSWORD": "your_password_here"
      }
    }
  }
}

Available Tools

Status & Scenes

Tool

Description

get_status

Current scene, streaming state, recording state + timecodes

list_scenes

List all scenes in the active collection

set_scene

Switch to a named scene

Recording & Streaming

Tool

Description

start_recording

Start recording

stop_recording

Stop recording (returns output file path)

toggle_recording

Toggle recording on/off

start_streaming

Start streaming

stop_streaming

Stop streaming

Sources

Tool

Description

list_sources

List all sources in a scene

set_source_visibility

Show or hide a source

Audio

Tool

Description

list_audio_inputs

List all audio inputs with mute/volume state

set_mute

Mute or unmute an audio input

toggle_mute

Toggle mute on an audio input

set_volume

Set volume (0.0–1.0) on an audio input

Canvas

Tool

Description

set_canvas_resolution

Set base/output resolution and FPS (global per collection)

Scene Management

Tool

Description

create_scene

Create a new empty scene

remove_scene

Delete a scene

rename_scene

Rename a scene

Scene Collections

Tool

Description

list_scene_collections

List all collections, show active

set_scene_collection

Switch to a different collection

create_scene_collection

Create a new scene collection

Profiles

Tool

Description

list_profiles

List all profiles, show active

set_profile

Switch to a different profile

create_profile

Create a new profile

remove_profile

Delete a profile

Misc

Tool

Description

save_screenshot

Save a screenshot of the current output to disk

Notes

  • Canvas resolution is a global OBS setting — it applies to all scenes in the current collection. Use separate scene collections for different aspect ratios (e.g. 16:9 vs 9:16 for YouTube Shorts).

  • Audio input kinds default to Windows (wasapi_*). On macOS, update the list_audio_inputs handler to use coreaudio_input_capture / coreaudio_output_capture.

License

MIT

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A
license - permissive license
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Maintenance

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Tools

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