Langfuse
Berlin, Germany
Founded 2023
Langfuse is an open-source observability platform for LLM applications. It allows users to debug, analyze, and improve their language model applications with traces, spans and metrics. Langfuse serves enterprises and is built on agents, evals, and tracing technologies.
Websites:
Last Updated: April 9, 2026
Current Valuation
No valuation data available
Funding Summary
$4M
Total reported funding
Media Mention
February 28, 2026
Stripe: Langfuse Scales Cloud Billing while Metering Billions of Events
Announcement
January 26, 2026
Langfuse Blog: Langfuse joins ClickHouse
Key People
Core OSS Projects
Business Information
Technologies
LLMs
Observability
evals
LLMOps
Traces
Sectors
Enterprise
Licenses
MIT-Expat
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