See it in action

From the author's READMEInterface showing one-click area tracing on a patient room plan

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From the author's README Kentucky-ai ·Source

What you can do with it

• Measuring room areas and perimeters from architectural PDFs via Claude
• Automating material quantity takeoffs for flooring or wall finishes
• Syncing manual canvas measurements with AI-generated estimates in real-time

Verified live · 53 tools

We started this MCP server in an isolated sandbox and it exposed these tools:

• load_plan

  Open a plan PDF from disk. Default: replace the whole session (previous documents, scales, conditions, and shapes are cleared). merge: true ADDS the document to the working set instead (#152) — a bid

• sheet_info

  Sheet detail: dims (px and pt), vector segment count, whether the sheet has vector linework (measure_polygon runs on it; get_sheet_vectors returns the strokes), scale status, the detected scale sugges

• set_scale

  Set a sheet's scale — exactly ONE of: label (a standard scale, e.g. '1/4" = 1'-0"'), upp (real feet per image px), calibrate (two points along a known dimension plus its real feet), or use_detected (a

• propose_takeoff

  Open a PROPOSAL — a named batch of the shapes you are about to commit, with one identity (#365). Every shape you commit from here on (measure_polygon, measure_line, measure_surface, place_count, the s

• measure_polygon

  Measure a closed polygon you supply (min 3 vertices, image px): area_sf and perimeter_lf at the sheet's scale. Requires the scale to be set. Pass condition to commit it; role "deduct" subtracts. A roo

• cut_out

  Cut a REAL hole in a committed floor_area shape (#206) — the way the canvas cuts one (#137): the same lib/cutout.js boolean subtract, so the two surfaces can never disagree about what a hole holds. Th

• measure_line

  Measure an open polyline (min 2 points, image px): length_lf at the sheet's scale. Requires the scale to be set. Pass condition to commit it as a linear shape (base, transitions, feature strips, condu

• measure_surface

  Surface Area — wall SF (#146): trace an OPEN run along the wall in plan view (min 2 points, image px) and the quantity is traced LF × height. This is how wall tile, wainscot, and wall systems are take

• place_count

  Count markers — EA (#146): one point, one each. Thresholds, stair nosings, floor boxes, entrance mats — the scale-free quantity family. Commits one count shape per point (computed {count: 1}, exactly

• symbol_sweep

  Find EVERY instance of a repeated plan symbol from ONE example — drains, thresholds, fixtures, transition markers: marquee a tight seed_rect around a single instance and the vector linework is searche

• sweep_schedule_row

  Take off a schedule row's mark from the row itself — the estimator's own gesture: a transition type sometimes exists only as a schedule row plus tag markers scattered across the plan sheets, and this

• count_marks

  The COUNT TAKEOFF in one deterministic call — no seeds, no model, seconds: census every VALUE-ANNOTATED mark tag on the plan-role sheets, counted per schedule mark, committed as EA markers when asked.

• derive_base

  Mint the wall base from committed rooms (#148) — the estimator's most mechanical derivation: base LF = room perimeter − stated door openings. For every floor_area shape of source_condition, commits ON

• derive_transitions

  Mint the transition where two finishes MEET (#202) — the derivation that follows derive_base, and the line an estimator draws by hand on every job. Pass the two finish tags and the tag the transition

• takeoff_summary

  Per-condition totals (floor/wall/border SF, LF, EA, SY, with and without waste) plus grand totals — the Report's numbers, computed by the same rules. Numbers only: the deliverable that SHOWS the work

npx -y opentakeoff-mcp · 22/10/2026

Safety check

From the README