Craft Quantities MCP

An official MCP server providing access to 1,160 construction calculators, job takeoffs, and unit conversions. It allows agents to search for calculators, run computations for materials and quantities, convert units, and retrieve source citations for building codes and standards, supporting tasks like house estimation, quote checking, and material planning without providing pricing data.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-19Operated by Craft Quantities

MCP endpoint (Streamable HTTP)

https://api.craftquantities.com/mcp

Vendor documentation

What you can do with it

Search for construction calculators by job type
Run calculations for material quantities
Convert between metric and US customary units
Retrieve source citations for building codes

Tools advertised by the last live check:

search
fetch
get_calculator
calculate
convert_units
get_sources
open_in_site_link
get_takeoff
run_takeoff
get_example
run_example
create_project_file_from_calculations
create_project_file_from_takeoffs
create_project_file_from_house
create_project_file_from_plan
create_project_file_from_drawing
check_quote
estimate_house
get_planner
plan_room
plan_project
create_drawing
import_quote
diagnose_symptom
solve_backwards
market_documents
translate_term
create_supplier_quote_request
get_benchmark
measure_sketch
export_drawing
layout_reinforcement
calculate_batch
update_project
classify_items
resolve_id
plan_programme
optimise_cuts

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http craft-quantities-mcp https://api.craftquantities.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add craft-quantities-mcp --url https://api.craftquantities.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable craft-quantities-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "craft-quantities-mcp": {
      "url": "https://api.craftquantities.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "craft-quantities-mcp": {
      "type": "streamableHttp",
      "url": "https://api.craftquantities.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start craft-quantities-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "craft-quantities-mcp": {
      "type": "http",
      "url": "https://api.craftquantities.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http craft-quantities-mcp https://api.craftquantities.com/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "craft-quantities-mcp": {
      "url": "https://api.craftquantities.com/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "craft-quantities-mcp": {
      "serverUrl": "https://api.craftquantities.com/mcp"
    }
  }
}

Ground your agent in cited data

Craft Quantities MCP gives your agent tools. Koskamo gives it reviewed, cited facts to check its answers against. Add it as a second MCP server; public reads need no API key.

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