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Babylon.js MCP Servers
Build and edit Babylon.js node materials, geometry, particles, GUIs and graphs through tool calls
Official · Babylon.js JavaScript Local · stdio DesignDeveloper tools
59 popularity score ★ 26k ↓ 1.6k/wk
Connect your client
Local (npm)
Add in one click
Opens the app, which asks before it adds the server.
Or add it by command or config
Claude CodeTerminal
claude mcp add babylon-js-servers -- npx -y @babylonjs/mcp-servers nmeClaude Desktopclaude_desktop_config.json
{
"mcpServers": {
"babylon-js-servers": {
"command": "npx",
"args": [
"-y",
"@babylonjs/mcp-servers",
"nme"
]
}
}
}Cursor~/.cursor/mcp.json
{
"mcpServers": {
"babylon-js-servers": {
"command": "npx",
"args": [
"-y",
"@babylonjs/mcp-servers",
"nme"
]
}
}
}VS Code.vscode/mcp.json
{
"servers": {
"babylon-js-servers": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@babylonjs/mcp-servers",
"nme"
]
}
}
}Codex~/.codex/config.toml
[mcp_servers.babylon-js-servers]
command = "npx"
args = ["-y", "@babylonjs/mcp-servers", "nme"]Gemini CLITerminal
gemini mcp add --scope user babylon-js-servers npx -- -y @babylonjs/mcp-servers nmeWhat it does
Babylon.js MCP Servers is a single npm package from the Babylon.js project that bundles seven MCP servers, one for each of the Babylon.js visual editors: Node Material Editor (nme), Node Geometry Editor (nge), Node Render Graph Editor (nrge), Node Particle Editor (npe), GUI Editor (gui), Flow Graph Editor (flow-graph) and Smart Filters Editor (smart-filters). Each one is started on its own, either through the dispatcher (npx -y @babylonjs/mcp-servers nme) or through its own binary such as babylonjs-nme-mcp-server.
The servers let an assistant create, edit, validate, import and export Babylon.js authoring graphs held in memory: add blocks, connect ports, set block properties, check the graph for problems and export it as the JSON the Babylon.js editors and runtime load. The Node Material server can also import from and save to Babylon.js snippets.
The graph servers can start a local editor session server and return a session URL. Pasting that URL into the matching Babylon.js editor's MCP session panel shows live updates from the server and pushes editor changes back. It needs Node.js and no account or key.
What it needs
| Runtime | Node.js |
|---|
Tools 45
create_material- Node Material server: create an in-memory Node Material graph.
validate_material- Node Material server: validate a Node Material graph.
export_material_json- Node Material server: export the graph as NME JSON.
create_geometry- Node Geometry server: create a Node Geometry graph.
validate_geometry- Node Geometry server: validate a Node Geometry graph.
export_geometry_json- Node Geometry server: export the graph as JSON.
create_particle_system- Node Particle server: create a node particle system graph.
validate_particle_system- Node Particle server: validate a particle system graph.
export_particle_system_json- Node Particle server: export the particle system as JSON.
create_render_graph- Node Render Graph server: create a render graph.
create_gui- GUI server: create a Babylon.js GUI.
add_control- GUI server: add a control to a GUI.
set_properties- GUI server: set properties on a GUI control.
describe_gui- GUI server: describe the current GUI.
export_gui_json- GUI server: export the GUI as JSON.
create_graph- Flow Graph server: create a flow graph.
connect_data- Flow Graph server: connect data ports between blocks.
connect_signal- Flow Graph server: connect signal ports between blocks.
export_graph_json- Flow Graph and Node Render Graph servers: export the graph as JSON.
stop_session_server- Stop the local live editor session server.
create_filter_graph- Smart Filters server: create a Smart Filter graph.
list_filter_graphs- Smart Filters server: list graphs in memory.
delete_filter_graph- Smart Filters server: delete a graph.
clone_filter_graph- Smart Filters server: clone a graph.
clear_all- Smart Filters server: clear all graphs.
list_block_types- List available block types.
get_block_type_info- Get details on a block type.
list_categories- List block categories.
describe_graph- Describe a graph.
describe_block- Describe one block in a graph.
add_block- Add a block to a graph (used by all graph servers).
add_blocks_batch- Add several blocks at once.
remove_block- Remove a block from a graph.
set_block_properties- Update a block's properties.
get_block_properties- Read a block's properties.
connect_blocks- Connect an output port to an input port.
connect_blocks_batch- Make several connections at once.
disconnect_input- Disconnect a block input.
list_connections- List connections in a graph.
validate_graph- Validate a graph and report problems.
list_issues- List validation issues.
import_filter_graph_json- Import a Smart Filter graph from JSON.
export_filter_graph_json- Export a Smart Filter graph as JSON, optionally to a file.
find_blocks- Search blocks in a graph.
find_block_types- Search block types.