Data Regions & Availability

Langfuse Cloud is designed for high availability and offers multiple data regions to meet your needs.

Our database and application run on AWS infrastructure, partly managed by Clickhouse.

Langfuse Cloud Regions

All data, user accounts, and infrastructure are completely separated between the regions. You can have accounts in each regions.

Connecting to a Region

To connect to a specific data region using the Langfuse SDKs, you need to set the base URL environment variable or pass it during initialization:

• Python: Set LANGFUSE_HOST environment variable or use the host parameter.
• JS/TS: Set LANGFUSE_BASEURL environment variable or use the baseUrl parameter.

Example base URLs:

• US: https://us.cloud.langfuse.com
• EU: https://cloud.langfuse.com
• HIPAA: https://hipaa.cloud.langfuse.com

Refer to the SDK documentation for detailed configuration instructions.

Choosing a Region

When selecting a data region, consider the following factors:

• Compliance and data privacy requirements: Choose the region that aligns with your organization’s data residency needs (e.g., GDPR often favors the EU region).
• Latency for Prompt Management: If using Langfuse Prompt Management, select the region closer to your application servers for lower latency when fetching prompts. This is hardly noticeable as the prompts are cached by the Langfuse SDK.
• Latency for UI access: Choose the region closer to your team’s location for a faster experience when using the Langfuse web interface.

Less critical factor:

• Tracing ingestion latency: Trace data is sent asynchronously in batches, making ingestion latency less of a direct concern for application performance.

Business Continuity & Availability

Self-hosted Instances

Alternatively, you can self-host Langfuse for full control over your data and infrastructure. For installation and configuration, see: Self-hosting guide

Contact

For questions about data regions or availability, contact [email protected].