Self-host OpenTakeoff
mcp-v0.9.100AI-native construction takeoff engine for PDF plans
- Stars
- 712
What is OpenTakeoff?
OpenTakeoff is a construction takeoff engine for measuring quantities from PDF building plans. It provides two interfaces sharing the same geometry and quantity engine: a browser canvas for human estimators and an MCP server for AI agents. Estimators drag in PDF plans or ZIP plan sets, set scale per sheet, trace rooms and finishes, and export CSV, Excel, marked-up PDF, and DXF. The MCP server (opentakeoff-mcp) exposes 58 tools over stdio for agents to load plans, set scale, measure polygons, derive base and transitions, sweep symbols, and export marked plansets. Every measurement records its scale, method, and authorship for full provenance. Agent work lands as dashed pencil proposals until a human approves it. The app is client-only with no backend, no account, and no uploads. Self-hosting is done by building the static web/dist and serving it from any static host, with a noted MIME-type fix for .mjs files. The MCP server runs via npx, Docker, or as an MCPB bundle for Claude Desktop.
Should you self-host OpenTakeoff?
OpenTakeoff scores 56/100 on selfhost.directory (how scoring works) and ranks #22 of 45 in Project Management. It has 712 GitHub stars.
It shipped 9 stable releases in the past year. The latest, mcp-v0.9.100, came out on 25 October 2026. New versions land roughly every 4 days.
Setup is moderate: expect some configuration beyond a single command. It is AGPL-3.0-licensed and written mostly in Typescript.
Its closest alternative on selfhost.directory is Plane (86/100, 61 588 stars). It scores higher overall, so compare the two before you pick. See OpenTakeoff vs Plane side by side.
Features
- Browser canvas
- Human review workflow
- Markups and annotations
- Microsoft 365 annotation syncExperimental, engine-proven but tenant-unproven
- Multi-format exports
- PDF takeoff measurement
- Provenance tracking
- Revision History
- Roll goods seam layout
- Schedule import
- Stitched sheetsHuman-only in canvas; not exposed via MCP
- Symbol sweep
- Transitions derivationWall-separated transitions withheld as questions since doorway location unknown
- Voice takeoffGated off by default; enable with VITE_COMMAND_BOX=1
OpenTakeoff README
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