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Cartesia on new websites

Real-time AI voice synthesis and streaming TTS API

Sites using Cartesia
33
since May 2026
Last 30 days
0.0%
of new sites, to Oct 19
no change on the 30 days before
Last 7 days
0.0%
of new sites, 7-day average
no change on the week before
Rank in AI API
#31
of 204 tools, all time
First seen May 13, 2026
Last seen Oct 14, 2026

What we found

  1. Cartesia appeared on 4 new sites in the last 30 days.[1]

Share of new sites using Cartesia

0.0000% 0.0002% 0.0004% 0.0006% 0.0008% 10 Sep Oct

The line is the 7-day average share of new sites that use Cartesia, since 10 September.

Who uses Cartesia

Kind of site 17 sites with a known type
TypeSitesShareBar
Education 4 23.5%
Marketing 3 17.7%
Health 2 11.8%
Productivity 2 11.8%
Social 2 11.8%
AI 1 5.9%
Design 1 5.9%
Finance 1 5.9%
Hiring & HR 1 5.9%
Domain ending 33 sites
EndingSitesShareBar
.com 11 33.3%
.ai 6 18.2%
.app 5 15.2%
.io 3 9.1%
.live 2 6.1%
.ca 1 3.0%
.dev 1 3.0%
.online 1 3.0%
.org 1 3.0%

AI API on new sites

# 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% 20.1%
4 – Google Gemini API <0.1% 10.2%
5 – One API <0.1% 5.7%
…
31 ▲4 Cartesia <0.1% 0.2%

All-time shares across the new sites we track: of all of them, and of the sites using any AI API tool. Among September launches it ranked #32 in AI API, up from #36 in August. All 204 in AI API

Recently launched products built on Cartesia

29 of the 33 sites using Cartesia are product launches we list individually. The other 4 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
CallCourty AI — 24/7 First-Ring Court Intake & Docket Telephony callcourty.com · United States Oct 14 Next.js React Vercel Deepgram
KONWA konwa.live · Productivity Oct 10 Cloudflare Google Search Console Lark Suite
AirBubble · say it, it’s done airbubble.io · India Sep 22 Next.js React Vercel Google Search Console
SvaraCall AI — Affordable AI Outbound Calling Agent for Indian Businesses svaracall.com · Marketing · India Sep 12 Next.js React Vercel Cloudflare DNS
Finly finly-ai.com · Finance Sep 9 Next.js React Vercel Google Search Console
INTELLECTA intellecta-ai.com · Education Sep 5 Next.js React Railway Vercel
TrueVoize — Voice AI Agents for Indian Businesses truevoize.com · India Sep 4 Cloudflare Google Fonts Namecheap Email Forwarding
The IELTS Bro theieltsbro.com · Education · India Sep 3 React Vercel Amazon SES Anam AI
KI-Telefonstreich online starten | Carl Calls carlcalls.com · Switzerland Sep 1 Render Cloudflare Google Analytics Google Tag Manager
Parry — Defend your everyday. themateadvocate.app · Social Sep 1 Next.js React Netlify Google Sign-In
Free AI mock interviews you take out loud · Larpy trylarpy.com · Hiring & HR Aug 30 Next.js React Vercel Cloudflare DNS
Sestante — scrivi il tuo libro con l'AI sestante.ai Aug 26 Next.js React Vercel Auth.js

Showing the most recent 12 of 29.

Watches, exports and the API give you all 33 sites using Cartesia, from £15 a month.

Notes

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

How this page is made

FirstSited looks at each new website near the day it goes live and records what it was built with. We do not go back later, so these figures describe what sites launch with, not what they run today. A site counts towards Cartesia when we detect Cartesia on it at that look.

Every share on this page is a proportion of the new sites we were tracking at the time. Sites we found across the wider web count towards the figures, but only product launches are listed by name. How we detect technologies · How we find new sites

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