Estimate a concrete pour with a change order

Size a concrete pour and its rebar grid, price a mid-job change order, then roll everything into one materials takeoff.

Workflow

Step 1 of 4

Concrete Calculator

Get cubic yards, bag count, and waste-adjusted volume for the pour.

concrete({"shape": "slab"})

Step 2 of 4

Rebar Calculator

Size the rebar grid and bar count for the same slab.

rebar({"length": 20, "width": 12})

Step 3 of 4

Change Order Calculator

Price a scope change discovered mid-pour.

change_order({"original_contract": 100})

Step 4 of 4

Bill of Materials / Takeoff Aggregator

Aggregate the pour, rebar, and change order into one takeoff.

bill_of_materials({"items": []})

Install

One command wires up every tool below for Claude Code:

claude mcp add --transport http wingman https://wingmanprotocol.com/mcp

Claude Desktop, Cursor and Continue configs are on /install. A free key (500 calls/month, no card) is on /pricing; beyond that it is x402 pay-per-call in USDC on Base.