Version: v3
License Key
All core Langfuse features and APIs are available in Langfuse OSS (MIT licensed) without any limits. Some additional features require a license key. See pricing page for more details on Langfuse Pro and Langfuse Enterprise.
Activating a License Key
After purchasing a license key, you can activate it by adding the following environment variable to your Langfuse deployment (both langfuse containers):
LANGFUSE_EE_LICENSE_KEY=<your-license-key>Feature Availability
All core Langfuse features and APIs are open source and MIT-licensed. They are available without any limits on usage when self-hosting.
| Feature | Cloud Free | Cloud Pro | Cloud Team | Self-Hosted OSS | Self-Hosted Pro | Self-Hosted Enterprise |
|---|---|---|---|---|---|---|
| Tracing & UI | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
| Integrations and SDKs | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
| Prompt Management | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
| Analytics / Dashboards | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
| Datasets | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
| Scores | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
| API access | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
There are some commercially licensed peripheral features:
| Feature | Cloud Free | Cloud Pro | Cloud Team | Self-Hosted OSS | Self-Hosted Pro | Self-Hosted Enterprise |
|---|---|---|---|---|---|---|
| LLM-as-a-Judge evaluations | ✅ | ✅ | ✅ | 🛑 | ✅ | ✅ |
| Prompt Playground | ✅ | ✅ | ✅ | 🛑 | ✅ | ✅ |
| Prompt Experiments | ✅ | ✅ | ✅ | 🛑 | ✅ | ✅ |
| Annotation Queues | ✅ | ✅ | ✅ | 🛑 | ✅ | ✅ |
| PostHog Integration | ✅ | ✅ | ✅ | 🛑 | ✅ | ✅ |
| Data Processing Agreement (DPA) | 🛑 | ✅ | ✅ | 🛑 | 🛑 | ✅ |
| Scheduled Exports to Blob Storage / S3 | 🛑 | 🛑 | ✅ | 🛑 | ✅ | ✅ |
| SOC2 & ISO27001 Reports | 🛑 | 🛑 | ✅ | 🛑 | 🛑 | ✅ |
| Project-level RBAC roles | 🛑 | 🛑 | ✅ | 🛑 | 🛑 | ✅ |
| Data Retention Policies | 🛑 | 🛑 | ✅ | 🛑 | 🛑 | ✅ |
| Audit Logs | 🛑 | 🛑 | ✅ | 🛑 | 🛑 | ✅ |
| UI Customization | 🛑 | 🛑 | 🛑 | 🛑 | 🛑 | ✅ |
| Organization Creators | 🛑 | 🛑 | 🛑 | 🛑 | 🛑 | ✅ |
| Organization Management API | 🛑 | 🛑 | 🛑 | 🛑 | 🛑 | ✅ |
Questions?
If you have any questions about licensing, please contact us (support).