UI Customization
This is only available in the Enterprise Edition. Please add your license key to activate it.
| Variable | Description |
|---|---|
LANGFUSE_UI_API_HOST | Customize the hostname that is referenced in the settings. Defaults to window.origin. |
LANGFUSE_UI_DOCUMENTATION_HREF | Customize the documentation link reference in the menu and settings. |
LANGFUSE_UI_SUPPORT_HREF | Customize the support link reference in the menu and settings. |
LANGFUSE_UI_FEEDBACK_HREF | Replace the default feedback widget with your own feedback link. |
LANGFUSE_UI_LOGO_DARK_MODE_HREFLANGFUSE_UI_LOGO_LIGHT_MODE_HREF | Co-brand the Langfuse interface with your own logo. Langfuse adapts to the logo width, with a maximum aspect ratio of 1:3. Narrower ratios (e.g., 2:3, 1:1) also work. The logo is fitted into a bounding box, so there are no specific pixel constraints. For reference, the example logo is 160px x 400px. |
LANGFUSE_UI_DEFAULT_MODEL_ADAPTER | Set the default model adapter for the LLM playground and evals. Options: OpenAI, Anthropic, Azure. Example: Anthropic |
LANGFUSE_UI_DEFAULT_BASE_URL_OPENAI | Set the default base URL for OpenAI API in the LLM playground and evals. Example: https://api.openai.com/v1 |
LANGFUSE_UI_DEFAULT_BASE_URL_ANTHROPIC | Set the default base URL for Anthropic API in the LLM playground and evals. Example: https://api.anthropic.com |
LANGFUSE_UI_DEFAULT_BASE_URL_AZURE_OPENAI | Set the default base URL for Azure OpenAI API in the LLM playground and evals. Example: https://{instanceName}.openai.azure.com/openai/deployments |