Chess API on new websites

1. Chess API appeared on 1 new site in the last 30 days.^[1]

The line is the 7-day average share of new sites that use Chess API, since 7 October. It starts at our first detection.

#	Movement	Tool	Share of all sites	Share of category	Bar
1	–	LocalLogic	0.1%	22.7%
2	▼1	The Movie Database	<0.1%	6.7%
3	▲1	Daum Postcode	<0.1%	5.4%
4	▼1	ViaCEP	<0.1%	3.6%
5	▼1	Frankfurter	<0.1%	3.2%
6	▲2	Walk Score	<0.1%	2.8%
7	▼2	Dimensions	<0.1%	1.9%
8	▼2	Open Food Facts	<0.1%	1.8%
9	▼1	Postcodes.io	<0.1%	1.7%
10	▲9	NASA Open Data	<0.1%	1.7%
11	▼3	BigDataCloud	<0.1%	1.5%
12	▲7	Wikidata	<0.1%	1.5%
…
480		Chess API	<0.1%	<0.1%

All-time shares across the new sites we track: of all of them, and of the sites using any Data API tool. All 1534 in Data API

2 of the 3 sites using Chess API are product launches we list individually. The other 1 are new business and personal sites: they count towards the figures above but are not listed here. A watch sends them to you.

Site	Found	Also detected
MineChess | Play Chess with Mines and Sudoku Online minechess.com · Games	Oct 14
Chesscorpus — base de datos de ajedrez gratuita chesscorpus.org · Games	Aug 25

Watches, exports and the API give you all 3 sites using Chess API, from £15 a month.

1. These figures cover websites that went live since April 2026, not the web as a whole.