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OpenTakeoff

OpenTakeoff is an MCP server that adds web browsing tools to AI assistants such as Claude Desktop, Claude Code and Cursor. Construction takeoff for AI agents: load plans, set scale, measure, count, export with provenance. It has 687 GitHub stars, is released under the AGPL-3.0 license and runs locally with npx -y opentakeoff-mcp.

github.com/Kentucky-ai/opentakeoff (opens in a new tab)

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

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Install OpenTakeoff

Generated from the server's MCP registry entry. Replace your-value with your own values.

Claude Desktop

claude_desktop_config.json
{
  "mcpServers": {
    "opentakeoff": {
      "command": "npx",
      "args": [
        "-y",
        "opentakeoff-mcp"
      ]
    }
  }
}

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

Claude Code

claude mcp add --transport stdio opentakeoff -- npx -y opentakeoff-mcp

Cursor

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

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

VS Code

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

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 OpenTakeoff

The measurement engine for building plans—built so an AI agent can drive it, and so an estimator wants to. A takeoff is the act of measuring quantities off a construction drawing. OpenTakeoff does it two ways over one engine: 58 MCP tools for an agent, and a browser canvas for a person. Agents and people share the takeoff document and quantity calculations. Each sheet carries its calibration; measurements carry geometry, method and authorship.

  • aec
  • construction
  • construction-tech
  • estimating
  • flooring
  • measurement
  • pdf
  • pdfjs
  • quantity-takeoff
  • takeoff

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FAQ

OpenTakeoff FAQ

Still curious? Email info@appsgit.com.

How do I install the OpenTakeoff MCP server?

Add the command npx -y opentakeoff-mcp 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 OpenTakeoff free?

The server is open source under the AGPL-3.0 license, so running it is free. It does not declare any required API key.

Is OpenTakeoff actively maintained?

The most recent commit was on Oct 25, 2026. The latest release is mcp-v0.9.100, published Oct 25, 2026. appsgit only lists MCP servers with a commit in the last six months.