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melio-remotion-mcp-app

v1.1.0

Published

MCP App for creating animated Remotion video compositions with a live interactive player. Design videos through conversation with AI.

Readme

Remotion MCP App

An MCP App for AI-powered video creation. It combines an MCP server with an interactive widget — the model writes React/Remotion code, the server compiles it in real-time, and a live video player renders the result directly inside the chat.

Unlike a standard MCP server that only returns text, an MCP App bundles a full UI widget alongside its tools. The Remotion Player widget renders inline in any compatible client (ChatGPT, Claude, or custom apps built with mcp-use), giving the model a visual canvas it can iterate on.

Try it now

Connect to the hosted instance:

https://still-feather-l5mwy.run.mcp-use.com/mcp

Setup on ChatGPT

  1. Open Settings > Apps and Connectors > Advanced Settings and enable Developer Mode
  2. Go to Connectors > Create, name it "Remotion", paste the URL above
  3. In a new chat, click + > More and select the Remotion connector

Requires ChatGPT Pro, Team, Enterprise, or Edu. Full guide

Setup on Claude

  1. Open Settings > Connectors > Add custom connector
  2. Paste the URL above and save
  3. The Remotion tools will be available in new conversations

Requires Claude Pro, Max, Team, or Enterprise. Full guide

Demos

ChatGPT + Remotion MCP App

OpenAI demo

Claude + Remotion MCP App

Claude demo

Click the previews above to watch the full demos.

How it works

This is an MCP App — an MCP server paired with a UI widget. The two pieces work together:

  1. MCP Server -- exposes create_video tool + rule tools for teaching Remotion patterns
  2. Widget -- a Remotion Player that renders inline in the chat, receives compiled bundles from the server

The flow:

  1. The model calls create_video with React/Remotion source files
  2. The server compiles the project with esbuild (sub-second)
  3. The compiled bundle is sent back as structuredContent, and the widget renders it as a playable video
  4. For edits, the model calls create_video again with only changed files -- the widget updates in-place with a loading overlay
Model                    MCP App (Server + Widget)
  |                          |
  |-- create_video({files}) ->|
  |                          |-- esbuild compile
  |<- structuredContent -----|
  |                          |-- Widget renders video inline
  |                          |
  |-- create_video({edits}) ->|
  |                          |-- merge + recompile
  |                          |-- Widget updates in-place

Single tool design

There is one tool: create_video. It handles both creation and editing. The files parameter is always required -- for edits, only send changed files. The server merges them with the previous session state.

Rule tools

The server includes teaching tools derived from the remotion-best-practices skill that the model can call to learn Remotion patterns:

| Tool | Topic | |------|-------| | rule_react_code | Project structure, imports, entry file contract | | rule_remotion_animations | useCurrentFrame, frame-driven animation | | rule_remotion_timing | interpolate, spring, Easing configs | | rule_remotion_sequencing | Sequence, scene management, duration | | rule_remotion_transitions | TransitionSeries, fade, slide, wipe | | rule_remotion_text_animations | Typewriter effect, word highlighting | | rule_remotion_trimming | Trimming with negative Sequence from |

Widget (the "App" part)

The Remotion Player widget is what makes this an MCP App rather than a plain MCP server. It runs inside the chat interface and features:

  • Live video playback with controls
  • Animated loading state with shader gradient while the model writes code
  • Editing overlay (blur + gradient) when updating an existing video
  • Fullscreen mode
  • Error display with compilation error details

Local development

Prerequisites

  • Node.js 18+
  • npm or pnpm

Setup

git clone https://github.com/mcp-use/remotion-mcp-app.git
cd remotion-mcp-app
npm install
npm run dev

The server starts at http://localhost:3000/mcp.

Connect a client

Point any MCP client at http://localhost:3000/mcp. For example with mcp-use:

{
  "mcpServers": {
    "remotion": {
      "url": "http://localhost:3000/mcp"
    }
  }
}

Build and deploy

npm run build
npm run deploy

Project structure

index.ts                     -- MCP server, tool definitions, handler
utils.ts                     -- esbuild compilation, session state, response helpers
types.ts                     -- Shared types (VideoProjectData, VideoMeta)
rules/                       -- Remotion teaching content served by rule tools
resources/remotion-player/   -- Widget source (React + Remotion Player)
  widget.tsx                 -- Main widget component
  components/
    CodeComposition.tsx      -- Bundle compiler (eval + runtime shim)

Tool schema

create_video({
  files: string,            // REQUIRED -- JSON string of {path: code}
  entryFile?: string,       // Default: "/src/Video.tsx"
  title?: string,
  durationInFrames?: number, // Default: 150
  fps?: number,             // Default: 30
  width?: number,           // Default: 1920
  height?: number,          // Default: 1080
})

The files parameter is a JSON string mapping virtual file paths to source code:

{
  "/src/Video.tsx": "import {AbsoluteFill} from \"remotion\";\nexport default function Video() { return <AbsoluteFill />; }"
}

Session behavior

  • Each MCP session maintains its own project state
  • Calling create_video merges new files with the previous project
  • Metadata (title, fps, dimensions) carries forward unless overridden
  • Sessions are capped at 250 concurrent projects with LRU eviction

License

MIT -- see LICENSE for details.

Note: Remotion is a dependency with its own license. Free for individuals and companies with up to 3 employees. Larger organizations need a company license.


Built with mcp-use and Remotion. Rule tools adapted from the remotion-best-practices skill by Remotion.