Roblox 3D Generator MCP
Generates valid JSON for creating or modifying 3D models in Roblox Studio from natural language prompts.
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@Roblox 3D Generator MCPcreate a modern house with glass windows and a flat roof"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Roblox 3D Generator MCP
Servidor MCP para generar JSON de modelos 3D de Roblox Studio usando la API de
Anthropic. El repo no incluye ninguna API key: cada usuario debe configurar su
propia clave con ANTHROPIC_API_KEY.
Que hace
Expone la herramienta MCP
generate_roblox_3d.Recibe un
prompty una lista opcionalselectioncon objetos seleccionados.Devuelve JSON valido para crear modelos nuevos o modificar objetos existentes.
Usa reglas de posicion, apilado, cilindros, techos, soportes, efectos y jerarquia pensadas para Roblox Studio.
Related MCP server: BlockbenchMCP
Instalacion
python3 -m venv .venv
source .venv/bin/activate
pip install -r requirements.txt
cp .env.example .envEdita .env y coloca tu clave:
ANTHROPIC_API_KEY=your-anthropic-api-keyEjecutar
python server.pyEl servidor MCP usa stdio. No imprime una URL porque lo debe lanzar un cliente MCP, como Claude Desktop, Codex u otro host compatible.
Configuracion MCP
Usa mcp_config.example.json como base y cambia las rutas absolutas:
{
"mcpServers": {
"roblox-3d-generator": {
"command": "/absolute/path/to/.venv/bin/python",
"args": ["/absolute/path/to/server.py"],
"env": {
"ANTHROPIC_API_KEY": "your-anthropic-api-key"
}
}
}
}Tambien puedes usar .env local para desarrollo. No subas .env a GitHub.
Herramientas MCP
generate_roblox_3d
Parametros:
prompt: descripcion del objeto o cambio que quieres generar.selection: lista opcional de objetos seleccionados. Cuando hay seleccion y el prompt pide corregir o ajustar, el servidor devuelvemodifications.
Ejemplo de entrada:
{
"prompt": "Crea una torre medieval con antorchas y techo inclinado",
"selection": []
}server_info
Devuelve el nombre del servidor, el modelo configurado, si hay API key cargada y el limite de tokens configurado.
Seguridad
Nunca escribas una API key directamente en
server.py.Usa
.envo variables de entorno del cliente MCP..envesta ignorado por Git.Si alguna clave real estuvo en un archivo compartido, revocala y crea una nueva en la consola de Anthropic.
Modelo
Por defecto usa claude-sonnet-4-6. Puedes cambiarlo con:
ANTHROPIC_MODEL=claude-sonnet-4-6This server cannot be deployed
Maintenance
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