Size soil and fertilizer for a raised bed

Calculate the soil volume needed for a raised bed, work out the fertilizer needed to hit a target nitrogen rate, then mulch the top.

Workflow

Step 1 of 3

Raised-Bed Soil Calculator

Calculate the soil volume needed for a raised bed's dimensions.

raised_bed({"length_ft": 20, "width_ft": 12})

Step 2 of 3

Fertilizer Calculator

Work out fertilizer amount for the bed's square footage and target rate.

fertilizer({"area_sqft": 100, "n_percent": 15})

Step 3 of 3

Mulch / Ground-Cover Calculator

Calculate mulch to top-dress the finished bed.

mulch({"length_ft": 20, "width_ft": 12})

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.