Enterprise License Key

All core Langfuse features and APIs are available in Langfuse OSS (MIT licensed) without any limits.

When running Langfuse self-hosted, you use the same deployment infrastructure as Langfuse Cloud. There are no scalability limitations between the different versions.

Some additional Enterprise features require a license key:

• Project-level RBAC Roles
• Protected Prompt Labels
• Data Retention Policies
• Audit Logs
• Server-Side Data Masking
• UI Customization
• Organization Creators
• Org Management API and SCIM
• Instance Management API

How Langfuse Enterprise is packaged

Langfuse Enterprise (self-hosted) is an annual agreement with a flat fee sized on your billable units. One license key activates all of your deployments and environments (production, test, dev, QA), and billable units across all of them count toward sizing. Langfuse does not actively meter self-hosted usage; usage is reviewed together at renewal.

See the self-hosted pricing page for a feature comparison, or talk to us.

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>

Enterprise self-hosted deployments use limited telemetry for license compliance. See the telemetry documentation for the exact fields that are collected.

Questions?

If you have any questions about licensing, please contact us.