
quantity-takeoff
Auditable construction takeoffs with locked waste and conservative purchase rounding.
What it can do
What data it sees
Do you need an account
No: the server works without sign-in
Auditable construction takeoffs with locked waste and conservative purchase rounding.
How to connect
How to connect quantity-takeoff to Claude
The server address to paste into Claude settings:
https://mcp.viridisconservation.com/quantity-takeoff/mcp
- Open Claude (claude.ai or the desktop app).
- Go to Settings → Connectors.
- Click Add custom connector.
- Paste the server address copied below into Remote MCP server URL and click Add.
- In a chat, click + → Connectors and switch the new connector on.
Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.
Authorization
After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.
How to connect quantity-takeoff to ChatGPT
The server address to paste into ChatGPT settings:
https://mcp.viridisconservation.com/quantity-takeoff/mcp
- Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
- Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
- Open Settings → Connectors and click Create.
- Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
- Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
- In a new chat open + → Apps/Connectors and enable the connector.
OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.
Authorization
On first use ChatGPT opens the service's sign-in window. Sign in and approve access.
How to connect quantity-takeoff to Cursor
The server address to paste into Cursor settings:
https://mcp.viridisconservation.com/quantity-takeoff/mcp
Fastest: click Open in Cursor below and confirm the prompt.
Manually:
- In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
- Paste the JSON copied below into
~/.cursor/mcp.json(per project:.cursor/mcp.jsonin the repo root). - Save the file. The server appears in the MCP list; authorize it there if asked.
Authorization
If the service needs sign-in, an authorize button appears next to the server in the MCP list.
Server tool list (7)
Raw names from tools/list. Only developers need these.
| calculate_takeoff | Calculate an auditable material takeoff from explicit geometry or a supported SmartScale/ProtoGen measurement payload. Returns net, explicit waste-adjusted, and conservative purchase quantities. This is a planning estimate, not a guaranteed material order or professional certification. |
| list_assemblies | List supported assemblies, required dimensions, formulas, waste defaults, and the current material-pack digest. |
| get_assembly | Return one assembly's formula, required dimensions, material factors, purchase increment, sources, and material-pack lineage. |
| list_material_pack | List the bundled material pack version, digest, coverage, shapes, rebar sizes, roof pitches, and explicit unsupported policy. |
| get_material_pack | Return the bundled factors, densities, coverages, waste defaults, purchase increments, unit conversions, sources, and raw-pack SHA. |
| verify_result | Recompute a takeoff audit hash, notary payload, pack currency, and QT9 unit-resolved conservation. Pass the prior result object as JSON. |
| describe_agent | Return fleet-standard capabilities, version, pack digest, disclaimer, composition role, and pricing. |