Cinevva Game Creator MCP Server (com.cinevva/game-creator)

This MCP server connects an MCP client to a live Cinevva game session. It lets you edit game files, import CC0 assets, and preview changes through playtesting with screenshots and simulated input. The server can also present the game as a playable widget within chat.

🛠️ Key Features

Drive a live Cinevva game session
Edit game files
Import CC0 assets
Preview changes via playtesting (screenshots, simulated input)
Show the game as a playable widget in chat

🚀 Use Cases

Iterating on 3D browser game code from an MCP client
Importing CC0 library assets into an active session
Reviewing results using screenshots generated during simulated playtesting

⚡ Developer Benefits

Remote hosted MCP server reachable via Streamable HTTP transport
OAuth 2.0 authentication with dynamic client registration
Client access to game code for reading and editing

⚠️ Limitations

Described as a hosted server endpoint (not an embedded/local tool)
Capabilities are tied to Cinevva’s hosted game session workflow

Cinevva Game Creator MCP Server

Build and edit real 3D browser games from Claude, Cursor, Claude Code, or any MCP client. This is the public home of Cinevva's hosted MCP server: connect once and the AI you already use can read your game's code, edit it, import assets from a CC0 library, rig 3D models, playtest with screenshots and simulated input, and show the game as a playable widget right in the chat.

Server URL

code

https://api.cinevva.com/create/mcp

Remote server, Streamable HTTP transport, OAuth 2.0 with dynamic client registration. You log in with your Cinevva account when your client connects. A free account works.

Add to Cursor

Setup

Claude (claude.ai and desktop): Settings → Connectors → Add custom connector. Name it Cinevva, paste the server URL, click Connect, and log in with your Cinevva account.

Claude Code:

bash

claude mcp add --transport http cinevva https://api.cinevva.com/create/mcp

Cursor: use the Add to Cursor button above, or add to ~/.cursor/mcp.json:

json

{
  "mcpServers": {
    "cinevva": { "url": "https://api.cinevva.com/create/mcp" }
  }
}

Cline: see llms-install.md, or add to your MCP settings:

json

{
  "mcpServers": {
    "cinevva": { "type": "streamableHttp", "url": "https://api.cinevva.com/create/mcp" }
  }
}

Gemini CLI: add to ~/.gemini/settings.json:

json

{
  "mcpServers": {
    "cinevva": { "httpUrl": "https://api.cinevva.com/create/mcp" }
  }
}

Full guide with screenshots and troubleshooting: cinevva.com/guides/mcp-server

How it works

File tools act on the authoritative server copy of your game, so your AI can read and edit code with or without a browser tab open. If you have the game open at cinevva.com/create, your tab picks up changes automatically. Runtime tools (console logs, screenshots, input simulation, asset import, rigging) drive a live browser session: open your game and click External agent in the creator toolbar to share it.

Tools

Group	Tools
Read	`list_game_files`, `read_files`, `search_game_file`, `read_console_logs`, `take_screenshot`
Edit	`edit_files`, `write_files`, `delete_files`, `rename_files`
Preview	`game_ready`, `show_game` (renders the game as a playable in-chat widget on supported hosts)
Assets	`search_assets`, `list_asset_packs`, `import_asset`, `search_fonts`
3D rigging	`rig_model`, `apply_animation`, `list_animations`, `get_task_status`
Testing	`execute_js`, `simulate_input`, `list_live_sessions`
Docs	`list_library_docs`, `search_library_docs`, `read_library_docs`

Games are plain web games (Three.js or 2D canvas) served from <gameId>.cinevva.games. Editing and asset import are free, 3D rigging spends credits from your Cinevva balance.

Registry

Published on the official MCP registry as com.cinevva/game-creator.

Cinevva Game Creator