Craft Quantities

Craft Quantities Calculators API

One calculator: what it asks, its answer in both systems, its sources and a link to its page.

GitHub OpenAPI

Operations 9

4 of 9 operations are conformant: apis.io called them with no credentials and the responses matched this contract. Checked 2026-11-12. how this works · status file

GET /calculate/{slug} Run a calculator (inputs in the query) conformant #
POST /calculate/{slug} Run a calculator #
GET /describe/{slug} A calculator's inputs, units, opening values, sources and version conformant #
GET /sources/{slug} A calculator's sources and a citation conformant #
POST /optimise-cuts Optimise a cut list: pieces from stock lengths, or rectangles nested on sheets #
POST /compare-on-job Compare two options on one job, with the crossover #
POST /guide-chain Run a guide's "Try the calculation" with your figures #
POST /stair Stair layout: straight, turned, concrete or steel #

Specifications

⚙
OpenAPI
https://artifacts.apis.io/craftquantities-com/openapi/craftquantities-com-calculators-api-openapi.yml

Schemas & Data

📊
JSONSchema
https://artifacts.apis.io/craftquantities-com/json-schema/craftquantities-com-calculate-result-schema.json

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API 
curl "https://apis.io/api/v1/apis/craftquantities-com:craftquantities-com-calculators-api"
All apis 
curl "https://apis.io/api/v1/apis?limit=25"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

craftquantities-com-calculators-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: Craftquantities Com Calculators API
  version: 1.6.0
  contact:
    url: https://craftquantities.com/api/
  license:
    name: CC BY 4.0
    url: https://creativecommons.org/licenses/by/4.0/
  description: 'Operations tagged Calculators across 2 of this provider''s published API definitions: craftquantities-com-openapi.json, craftquantities-com-openapi.yml. Each path carries the servers of the definition it was published in.'
servers:
- url: https://api.craftquantities.com/v1
tags:


# --- truncated at 32 KB (194 KB total) ---
# Full source: https://artifacts.apis.io/craftquantities-com/openapi/craftquantities-com-calculators-api-openapi.yml