Company research
As of May 5, 2026
Hacker News mentions decreased 63.2% over the last 30 days. Hacker News is discussion volume, not adoption.
Langfuse
Open-source LLM observability platform. Monitor and debug AI applications.
AI InfrastructureFounded January 2023#5 of 54 in AI Infrastructure
Updated May 29, 2026
Follow this company
Follow this company to revisit its latest research cards from your account.
Company profile
What is Langfuse?
Langfuse provides observability for LLM applications. Track prompts, responses, and costs. Open-source alternative to proprietary tools.
History
Research history
2 research updates
Ai Infrastructure
Langfuse: Hacker News mentions decreased 63.2% over the last 30 days
LatestAi Infrastructure
Langfuse: Hacker News mentions decreased 66.7% over the last 30 days
1 metricLatest company data
Primary data point
Downloads
26.9M/30d
- npm
- 5.4M
- PyPI
- 21.4M
Tracked packages: npm langfuse; PyPI langfuse
▲ +8%npm + PyPI: Updated 1d ago
Other data points
Dependent projects
583
- npm
- 128
- PyPI
- 455
Projects depending on tracked packages: npm langfuse; PyPI langfuse
npm + PyPI: Updated 9h ago
GitHub stars
28.2K
Main repository stars
Updated 9h ago
Hacker News
12/30d
Position #18 in category discussion
Updated 9h ago
Repository health
Maintenance data from the main open-source repository.
Key-person riskSource: GitHub public event dataUpdates: WeeklyCaveat: Minimum developers needed for half of recent code changes. Lower = higher concentration risk.Methodology →
4
External contributorsSource: GitHub public event dataUpdates: WeeklyCaveat: Based on push events; may undercount contributors who only open PRsMethodology →
7
% of recent contributors outside the core team
Releases (30d)Source: GitHub release dataUpdates: WeeklyCaveat: Published releases in the last 30 daysMethodology →
0
Repository usage
Public repositories and source files importing packages tied to Langfuse.
Repos importingMetric: Public GitHub repos using company packagesSource: ecosyste.ms Packages APIScope: UTC daily snapshotUpdates: DailyFreshness: 48h target; 48h expected source lagConfidence: HighCaveat: Public GitHub dependency data only; private repos and direct API use outside those packages are not visible.Methodology →
40%
About Langfuse
Langfuse provides observability for LLM applications. Track prompts, responses, and costs. Open-source alternative to proprietary tools.
FoundersMax-Julian Scholtz, Lukas Müller
Funding
$5M · 3 roundsRaised $5M total. Category position #5 of 54 in AI Infrastructure.
Seed2024
$40KBurda Principal Investments
Seed2024
$4MLightspeed Venture Partners
Seed2023
$500KY Combinator
Investors
Burda Principal InvestmentsLightspeed Venture PartnersY Combinator
Tracked packages (2)
1 npm, 1 PyPI
langfuse
npmMain npm packagelangfuse
Open-source LLM observability platform. Monitor and debug AI applications.
langfuse
PyPIMain PyPI packagelangfuse
Open-source LLM observability platform. Monitor and debug AI applications.