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langfuse license, foundation and stars

LLM application frameworks · Custom or mixed (see the LICENSE file) (source-available) · 36,885 stars

GitHub

Open source agent evals & observability: Trace, evaluate, and improve LLM applications with one open platform.

License history

LICENSE file

Custom or mixed (see the LICENSE file) No license change recorded since the repository was created in 2023.

Latest release

No GitHub releases published; the project releases elsewhere (tags or its own site).

About and history
Repository
langfuse/langfuse · created May 18, 2023
Website
langfuse.com
Language
TypeScript
Foundation
None; run by its maintainers
GitHub detects
NOASSERTION (a custom or multi-license file; the license above is read from the file itself)
Stars per week
309 (GitHub weekly snapshots)

Weekly snapshots

Week ofStars
Nov 2, 202636,885
Oct 19, 202636,253
Oct 12, 202635,814
Sep 28, 202635,364
Sep 21, 202635,033

Changes

Stars per weekNov 2, 2026

Gains about 309 stars a week, up from 305.

Stars per weekOct 23, 2026

Gains about 305 stars a week, up from 260.

Stars per weekOct 14, 2026

Gains about 260 stars a week, down from 331.

Stars per weekOct 4, 2026

Gains about 331 stars a week.

TrackedSep 25, 2026

Now tracked, from langfuse/langfuse on GitHub.