OpenTakeoff

What it is

OpenTakeoff is a construction takeoff engine for measuring quantities from building plans, with a browser canvas for people and an MCP server for AI agents. The browser app opens PDF plan sets, images and ZIP plan sets, processing them locally without an account or plan upload. It reports square feet, square yards, linear feet and each, and can produce waste-adjusted order quantities, supporting-materials lists and roll-goods cuts. Exports include CSV, Excel and marked PDF files. The MCP server runs through `npx -y opentakeoff-mcp` and supports Claude Code, Claude Desktop, Cursor and other stdio MCP clients. Agent measurements remain pending proposals until a person approves them in the browser canvas. In the default browser workspace, plans, measurements, annotations, materials and project settings are processed on the device and stored in browser storage. Optional connections include Google Drive, Microsoft 365 cloud storage, configured AI providers and a scanned-schedule service that can send a selected image to Google Gemini. The free, Apache-2.0 licensed project can be forked for self-hosting. One-Click Area is temporarily gated, and room-detection verbs are not registered in the default MCP build.

Who it suits. OpenTakeoff suits construction professionals and developers measuring plan quantities, including those who want a browser workflow or MCP access for AI agents. Users seeking a self-hosted setup can fork the Apache-2.0 project.

Verdict

OpenTakeoff pairs a local browser takeoff canvas with an MCP interface, and its free plan avoids account and upload requirements for the default workflow. Note the temporarily gated area feature and review agent proposals in the canvas before relying on them.

Plans and prices

From OpenTakeoff's own pricing page, checked 30 Sept 2026. Every plan

What the maker publishes

Agent integration

The MCP server runs through `npx -y opentakeoff-mcp` and supports Claude Code, Claude Desktop, Cursor and other stdio MCP clients. source

Agent review

Agent measurements remain pending proposals until a person approves them in the browser canvas. source

Area measurement

The engine measures areas in square feet or square yards for floors, ceilings and walls. source

Cloud integrations

Documentation describes optional Google Drive and Microsoft 365 connections that use the user's sign-in and permissions to synchronize project files. source

Company founding

LinkedIn lists Kentucky AI as founded in 2026. source

Company headquarters

LinkedIn lists Shelbyville, Kentucky as Kentucky AI's headquarters. source

Company ownership

LinkedIn classifies Kentucky AI as privately held and in software development. source

Company size

LinkedIn lists Kentucky AI as having 2–10 employees. source

Count measurement

Count tools record fixtures, devices and doors as eaches. source

Data sharing

Connected AI providers can receive the tool results, images, quantities and project information requested by the user's MCP client. source

Default feature limit

One-Click Area is temporarily gated while its flood engine is re-validated; the default MCP build does not register its room-detection verbs. source

Developer runtime

The agent guide requires Node 20 or newer and provides an npx configuration without cloning or building. source

Docker deployment

The MCP README documents Docker image creation, interactive execution and read-only plan-volume mounts. source

Documentation depth

The repository provides separate user and agent manuals, an MCP reference, changelog, feature map, wiki and contributor guidance. source

Exports

The app exports CSV, Excel and marked PDF files. source

Google Drive team mode

The user guide describes a Google Drive Projects root where PDFs and hidden OpenTakeoff sidecar files live in project folders. source

Headquarters

Shelbyville, Kentucky, United States source

Human review workflow

Agent-created shapes remain pending and dashed until a person reviews and accepts them. source