# 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](/content/docs/rbac/index.html)
- [Protected Prompt Labels](/content/docs/prompt-management/features/prompt-version-control#protected-prompt-labels/index.html)
- [Data Retention Policies](/content/docs/data-retention/index.html)
- [Audit Logs](/content/changelog/2025-01-21-audit-logs/index.html)
- [Server-Side Data Masking](/content/self-hosting/security/data-masking#server-side-ingestion-masking-ee/index.html)
- [UI Customization](/content/self-hosting/administration/ui-customization/index.html)
- [Organization Creators](/content/self-hosting/administration/organization-creators/index.html)
- [Org Management API and SCIM](/content/docs/administration/scim-and-org-api/index.html)
- [Instance Management API](/content/self-hosting/administration/instance-management-api/index.html)

See [pricing page](/content/pricing-self-host/index.html) for more details on 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>
```

Enterprise self-hosted deployments use limited telemetry for license compliance. See the [telemetry documentation](/content/self-hosting/security/telemetry/index.html) for the exact fields that are collected.

## Questions?

If you have any questions about licensing, please [contact us](/content/support/index.html).

* * *

If you experience any issues when self-hosting Langfuse, please:

1. Check out [Troubleshooting & FAQ](/content/self-hosting/troubleshooting-and-faq/index.html) page.
2. Use [Ask AI](/content/docs/ask-ai/index.html) to get instant answers to your questions.
3. Ask the maintainers on [GitHub Discussions](/content/gh-support/index.html).
4. Create a bug report or feature request on [GitHub](/content/issues/index.html).

Enterprise-grade support is available when self-hosting Langfuse. Learn more on our [pricing page](/content/pricing-self-host/index.html).