Abacus.AI on new websites

1. Abacus.AI appeared on about 930 new sites in the last 30 days.^[1]
2. Almost all new Abacus.AI sites also use React.
3. It is unusually common on .site domains: 12% of the domains running it, against 2.1% of domains across new sites.

The line is the 7-day average share of new sites that use Abacus.AI, day by day for the last 90 days and weekly before that (left of the dashed line). The shaded areas were measured against a different set of sites, so the line can step there without Abacus.AI itself changing.^[2][3]

#	Movement	Tool	Share of all sites	Share of category	Bar
1	▼1	Anthropic	0.1%	25.8%
2	–	Abacus.AI	0.1%	21.6%
3	▲1	OpenAI API	0.1%	20.0%
4	–	Google Gemini API	<0.1%	10.2%
5	–	One API	<0.1%	5.6%

All-time shares across the new sites we track: of all of them, and of the sites using any AI API tool. All 198 in AI API

Tool	Sites with both	vs all new sites	Bar
Envoy	3,197	204x
Auth.js	1,754	121x
Next.js	3,311	7.1x
Lucide Icons	3,086	5.7x
Motion	909	4.5x

Tools that turn up far more often on Abacus.AI sites than on new sites in general, and how many times as common each one is there.

1,197 of the 3,360 sites using Abacus.AI are product launches we list individually. The other 2,163 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. They are included in the StackScope API and in Stackdar alerts.

Site	Found	Also detected
Sydney Beach Challenge sydneybeachchallenge.com	Oct 17
FitMind IA Personal fitmind-ia.app · Health	Oct 17
Better Muse AI — We don't make Muse. We make Muse work better for you. bettermuseai.com · Productivity	Oct 16
TRADE ESTATE – Vom Unterlagenordner zum verkaufsfertigen Objekt tradeestate.ai · Germany	Oct 16
WorkThread — UK & European employment and HR compliance software dmg-workthread.com · Hiring & HR · United Kingdom	Oct 16
CyberThread — AI network threat detection for UK businesses dmg-cyberthread.com · Developer Tools · United Kingdom	Oct 16
NightShift Trader — AI Strategy Agents That Trade While You Sleep nightshifttrader.com · Finance	Oct 16
RootMatch — Find Love From Your Roots rootmatch.app · Social	Oct 16
TradeTable — The Trusted Trade Desk for Pokemon TCG tradetable.live · Games	Oct 16
Lapis Finds — Discover What Works for You lapisfinds.com · Health	Oct 15
DadKonekte — Mizik, Ritm ak Konesans dadkonekte.com	Oct 15
RiskThread — H&S Risk Assessments dmg-riskthread.com	Oct 15

Showing the most recent 12 of 1,197.

The StackScope API serves all 3,360 sites using Abacus.AI, filterable and exportable, from £15 a month.

1. These figures cover websites that went live since April 2026, not the web as a whole.
2. Grey: before 8 July 2026, we only tracked launches from launch platforms. From that date we crawl the wider web as well, so the share is measured against a much larger set of sites. For one continuous measure, view launch platforms only.
3. Amber: 8 July to 10 September 2026, before we improved our infrastructure to index new sites much sooner, often on the day they go live. Sites found that early often haven't finished setting up, so anything usually added after launch reads lower from 10 September. We record each site as it was when we found it.
4. Country comes from what each site says about itself, such as a company registration, legal terms or a phone number, not just its domain ending. Too few sites state their country plainly for the usual count, so this one also counts single signals: a country domain ending, a phone number (for North America, its area code), a location the site declares in its own page metadata, or a country-specific vendor stack and the page language where they agree and nothing contradicts them. Read these as likely rather than certain.
5. Green hosting is the share whose web host The Green Web Foundation lists as running on green energy, among sites checked since 1 April 2026, against the same share for every new site we checked over that time. Data from The Green Web Foundation.