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Kiln

Kiln is an MCP server that adds developer tools to AI assistants such as Claude Desktop, Claude Code and Cursor. Build and revise procedural 3D assets with your coding agent. It has 296 GitHub stars, is released under the MIT license and runs locally with npx -y @instruktlabs/kiln.

github.com/instruktlabs/kiln (opens in a new tab)

Data as of from the GitHub API; description from the project's repository. Report an error

View on GitHub (opens in a new tab)

Install Kiln

Generated from the server's published package. Replace your-value with your own values.

Claude Desktop

claude_desktop_config.json
{
  "mcpServers": {
    "kiln-instruktlabs": {
      "command": "npx",
      "args": [
        "-y",
        "@instruktlabs/kiln"
      ]
    }
  }
}

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

Claude Code

claude mcp add --transport stdio kiln-instruktlabs -- npx -y @instruktlabs/kiln

Cursor

.cursor/mcp.json
{
  "mcpServers": {
    "kiln-instruktlabs": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@instruktlabs/kiln"
      ]
    }
  }
}

Project file; use ~/.cursor/mcp.json to enable it in every project.

VS Code

.vscode/mcp.json
{
  "servers": {
    "kiln-instruktlabs": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@instruktlabs/kiln"
      ]
    }
  }
}

Config formats checked against the official docs on Oct 7, 2026: modelcontextprotocol.io (opens in a new tab), code.claude.com (opens in a new tab), cursor.com (opens in a new tab), code.visualstudio.com (opens in a new tab).

About Kiln

Build and revise 3D assets with your coding agent. Your agent writes JavaScript using Kiln's geometry and material helpers. Kiln runs the program, returns rendered views and structural checks, and exports a GLB. Keep the editable source to refine the asset later.

  • 3d
  • agent-tools
  • ai-agents
  • game-assets
  • glb
  • gltf
  • mcp
  • mcp-server
  • model-context-protocol
  • procedural-generation

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FAQ

Kiln FAQ

Still curious? Email info@appsgit.com.

How do I install the Kiln MCP server?

Add the command npx -y @instruktlabs/kiln to your MCP client: put it in claude_desktop_config.json for Claude Desktop, run claude mcp add for Claude Code, or add it to .cursor/mcp.json (Cursor) or .vscode/mcp.json (VS Code). The snippets on this page are ready to paste.

Is Kiln free?

The server is open source under the MIT license, so running it is free. It does not declare any required API key.

Is Kiln actively maintained?

The most recent commit was on Oct 26, 2026. The latest release is v1.5.0, published Oct 25, 2026. appsgit only lists MCP servers with a commit in the last six months.