Overview
Research summary
Langfuse connects observability and evaluation in a shared workflow for developing LLM applications. It records hierarchical traces, model usage and costs, manages prompts, runs dataset experiments and supports automated scoring alongside human annotation. Applications can send telemetry through SDKs, integrations or OpenTelemetry-compatible instrumentation.
Teams can use the hosted service or deploy the platform themselves. The repository's core code is MIT-licensed, but designated enterprise directories are covered by a separate licence, so the complete distribution has mixed licensing. Langfuse is useful when tracing, prompt changes and quality evaluation need to be inspected together instead of in separate tools.
Repository summary
- Stars
- Unavailable
- Open issues
- Unavailable
- Last push
- Unavailable
- Commits, 90 days
- Unavailable
- Repository activity
- Not scored
- Version
- Unavailable
Recorded catalogue figures. View repository data and provenance →
Classification
Pricing & services
Paid services available
The provider offers paid products or services. Free options may also be available.
Commercial offering checked 2026-10-02.
Licence scope
The ee/, web/src/ee/ and worker/src/ee/ directories have separate commercial terms.
Implementation
Recorded implementation details and interfaces for Langfuse.
Implementation details
TypeScript web application and workers with SDKs, APIs and CLI access.
- Languages
- TypeScript
- Repository type
- source
Recorded interfaces and capabilities
Licence scope
The ee/, web/src/ee/ and worker/src/ee/ directories have separate commercial terms.
Repository
Repository snapshots, release information and recorded maintenance signals.
Repository snapshot
- Stars
- Unavailable
- Open issues
- Unavailable
- Last push
- Unavailable
- Commits, 90 days
- Unavailable
- Repository activity
- Not scored
- Archived
- Not recorded
Repository activity is a snapshot, not a quality or popularity ranking. It combines recent-push freshness (50%), 90-day commits (30%) and issue pressure (20%).
Maintenance and provenance
- Catalogue snapshot
- 2026-10-06
Documentation
Recorded references and research provenance for this entry.
Recorded sources 9
- https://langfuse.com Project page · Research reference
- https://github.com/langfuse/langfuse Linked repository · Research reference
- https://github.com/langfuse/langfuse/blob/main/LICENSE Research reference
- https://langfuse.com/faq/all/self-hosting-langfuse Research reference
- https://github.com/langfuse/langfuse-docs/blob/main/components/layout/Footer.tsx Research reference
- https://langfuse.com/blog/2024-11-17-launch-week-2 Research reference
- https://www.youtube.com/watch?v=9MzdiL9tUe0 Research reference
- https://www.youtube.com/oembed?url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D9MzdiL9tUe0&format=json Research reference
- https://langfuse.com/pricing Commercial offering evidence
Research metadata
- Research date
- 2026-10-01
- Catalogue snapshot
- 2026-10-06
Community & social 5 channels
Video
- YouTubeLangfuseOfficialLearningDemosEvents
Link details for YouTube — Langfuse
- Last checked
Communities
- GitHub Discussionsgithub.com/langfuse/langfuse/discussionsOfficialSupportFeedback
- Discorddiscord.com/invite/7NXusRtqYUOfficialDiscussion
Social & updates
- Xx.com/langfuseOfficial
- LinkedInwww.linkedin.com/company/langfuseOfficial