Sizely for AI assistants and developers

Sizely finds ready-made furniture from online shops that fits a particular niche or free wall. It searches by centimetres, not by category. Sizely currently searches more than 3,000 pieces of furniture from 1 online shop (as of 10 November 2026). AI assistants such as ChatGPT, Gemini or Claude, and your own tools, can search Sizely directly, without an account or API key. With country you choose the country whose shops are searched (Germany by default).

How to ask your assistant

Name Sizely and your measurements, for example:

“Search sizely.de for a shelf for my niche: 40 cm wide, 30 cm deep, at most 180 cm high. Use the JSON search at https://www.sizely.store/api/search.”

Search by link

Niche 60 cm wide, 35 cm deep, all furniture: https://www.sizely.store/at/en/?type=niche&width=60&depth=35
Wall 80 cm wide, all furniture: https://www.sizely.store/at/en/?type=wall&width=80
Wall 120 cm wide, chests of drawers only, white, up to 300 euros: https://www.sizely.store/at/en/?type=wall&width=120&category=chests-and-sideboards&color[]=white&max_price=300
Niche 40 cm wide, 30 cm deep, at most 180 cm high, shelves only: https://www.sizely.store/at/en/?type=niche&width=40&depth=30&height=180&category=shelves

JSON search

The same search as JSON at https://www.sizely.store/api/search, with English parameters and values (see below):

Machine-readable description (OpenAPI): https://www.sizely.store/api/openapi.json. Short version for language models: llms.txt.

Parameters

type: niche (default, walls on the left and right) or wall (free wall).
width: Width in cm, required.
depth: Depth in cm, required for a niche.
height: Maximum height in cm.
tolerance: Niche: how many cm narrower the furniture may be, default 3. Empty means any narrower.
depth_tolerance: How many cm shallower than the depth the furniture may be.
overhang: Wall: how many cm wider the furniture may be, default 0.
max_price: Maximum price in euros.
category: wall-units (Wall units), shoe-cabinets (Shoe cabinets), chests-and-sideboards (Chests of drawers & sideboards), cabinets (Cabinets & wardrobes), shelves (Shelves), seating (Armchairs, sofas & chairs), tables (Tables), beds (Beds), baby-furniture (Baby furniture), floor-lamps (Floor lamps), other (Other furniture). Optional, the default is all furniture. Only set it when someone explicitly wants a certain kind of furniture, and do not ask for one: often a different kind fits. Finer kinds such as tv-units are listed in the response under subcategories.
color[]: One or more: white, black, grey, beige, light-wood, dark-wood, red, pink, yellow, green, blue. Sizely detects the colour from the product image.
country: Country of the shops, default de. Links lead to the pages of that country.
language: Language of the links: the language of the country (default) or en.
limit: Number of results, 1 to 60, default 20.

The first version at /api/suche with German parameters (ort, breite, ...) still redirects here.

Response

Matches are in results, closest fit first, each with title, brand, shop, width, depth and height in cm, price in euros, detected colours, image, the product page on Sizely (url) and the buy link (buy_url). dimensions_confirmed_by_users counts how often visitors confirmed the dimensions.

Rules

Please link buy_url for buying. It leads to the shop via Sizely.
Prices and availability come from the shops, as of the last nightly import.
Up to 120 requests per hour and IP address. Responses may be cached for 10 minutes.