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Langfuse on new websites

Open-source LLM observability and tracing platform. CSP host langfuse.com indicates LLM call tracing.

Sites using Langfuse
15
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
#48
of 204 tools, all time
First seen May 18, 2026
Last seen Oct 19, 2026
Website langfuse.com

What we found

  1. Langfuse appeared on 2 new sites in the last 30 days.[1]

Share of new sites using Langfuse

0.0000% 0.0001% 0.0002% 0.0003% 0.0004% 10 Sep Oct

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

Who uses Langfuse

Domain ending 15 sites
EndingSitesShareBar
.ai 4 26.7%
.app 3 20.0%
.com 2 13.3%
.dev 2 13.3%
.io 1 6.7%
.space 1 6.7%
.uk 1 6.7%
.xyz 1 6.7%

AI API on new sites

# Movement Tool Share of all sites Share of category Bar
1 ▼1 Anthropic 0.1% 25.7%
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%
…
48 ▲21 Langfuse <0.1% 0.1%

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 #49 in AI API, up from #70 in August. All 204 in AI API

Recently launched products built on Langfuse

10 of the 15 sites using Langfuse are product launches we list individually. The other 5 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
Heysell — AI-менеджер з продажу в переписці heysell.app Oct 19 Next.js Vercel Google Fonts Helicone
NALAR: Media Literacy Simulation bernalar.xyz · Education Sep 5 Next.js React Vercel Google Gemini API
Turn Views & Clicks Into Real Income wayo-ads.com · Marketing Aug 5 Next.js React Bing Ads CARTO
Luca — Microcrédito grupal, factoraje y PO Financing byluca.ai · Finance Aug 3 Next.js React Vercel Cloudflare Turnstile
Auren auren.space Jul 22 Next.js React Anthropic Cloudflare
PsyMind — Personalized meditations just for You psymind.app · Health Jul 19 Vercel Anthropic Google Fonts Google Gemini API
Bucket - Emma, the AI operations agent for experience operators trybucket.ai · Productivity · United States Jul 13 Next.js React Vercel Cloudflare
ThoughtFuel — Uplevel your personal brand on LinkedIn | ThoughtFuel thoughtfuel.ai · Marketing · Singapore Jul 10 Next.js React Vercel Driver.js
PLOTT plott.uk · Marketing · United Kingdom May 28 Next.js React Vercel Amazon SES
Agents IA autonomes pour PME — PilotCrew pilotcrew.io · AI · France May 18 Next.js React Vercel Amazon SES

Watches, exports and the API give you all 15 sites using Langfuse, 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 Langfuse when we detect Langfuse 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

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.