Open source video editing for agents

This is mcut Studio, the editor built on the mcut SDK. On a desktop browser an agent is editing it live, and you can take over.

An agent is editing this video.

1get_summary1 track, 1 clip, 20.0 s

{
  "id": "r1",
  "type": "get_summary"
}

2run_operator edit.addTextAtPlayheadtitle at the playhead

{
  "id": "r2",
  "type": "run_operator",
  "payload": {
    "operatorId": "edit.addTextAtPlayhead",
    "input": {
      "text": "Big Buck Bunny"
    }
  }
}

3run_action effects.fade-open-closefade in and out on the title

{
  "id": "r3",
  "type": "run_action",
  "payload": {
    "actionId": "effects.fade-open-close",
    "input": {}
  }
}

4run_action view.aspect-9-16canvas 1080 x 1920

{
  "id": "r4",
  "type": "run_action",
  "payload": {
    "actionId": "view.aspect-9-16",
    "input": {}
  }
}

5undocanvas back to 1280 x 720
```
{
  "id": "r5",
  "type": "undo"
}
```
6undofade removed
```
{
  "id": "r6",
  "type": "undo"
}
```
7redofade restored
```
{
  "id": "r7",
  "type": "redo"
}
```
8redovertical again
```
{
  "id": "r8",
  "type": "redo"
}
```

Studio is not public yet. Join the waitlist for the first build.

Two ways to make the same edit

From TypeScript

engine.dispatch({
  "type": "updateProject",
  "width": 1080,
  "height": 1920
})

The agent's action ran this command through engine.dispatch.

Read the quickstart

From an agent

{
  "id": "r4",
  "type": "run_action",
  "payload": {
    "actionId": "view.aspect-9-16",
    "input": {}
  }
}

The MCP server exposes this request as a tool.

Connect an agent

# core SDK
bun add @mcut/timeline @mcut/editor @mcut/compositor @mcut/media @mcut/react @mcut/transcription

# caption providers
bun add @mcut/transcription-assemblyai @mcut/transcription-local @mcut/transcription-ai-sdk ai

# CLI
bunx @mcut/cli --help