FAQOverview

FAQ

These FAQs are the most common questions we receive. If your question is not answered below, please open a new discussion on GitHub Discussions.

Categories

API

How to authenticate with the Langfuse API?Are there any limits to the Langfuse API?

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Auth

I have forgotten my passwordInviting co-workers to LangfuseWhere is my Langfuse project?

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Cloud

What data regions does Langfuse Cloud support?How to manage different environments in Langfuse?How do I upgrade my Langfuse account?

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Datasets

I have setup Langfuse, but I do not see any traces in the dashboard. How to solve this?

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Features

How do I track LLM cost and tokens in Langfuse?How can I manage my prompts with Langfuse?

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Help

How can I receive support?How do I report an issue/feedback/bug?Where do I find my Langfuse API keys?

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Integration LangChain

How to customize the names of observations within a Langchain trace?Langsmith Alternative? Langfuse vs. LangsmithWhat is LangChain Expression Language (LCEL)?

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Integration OpenAI

How to trace the OpenAI Assistants API?

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Product

Monitoring AI Research Assistants - Ensuring Accuracy and ReliabilityHow Remberg Improves Transparency of AI Features with LangfuseBraintrust Data Alternatives? The best LLMOps platform?The best LLMOps Platform? Helicone AlternativesArize Phoenix Alternative? Langfuse vs. Phoenix LLM Observability

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Prompt Management

How do I link prompt management with tracing in Langfuse to see which prompt versions were used?

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Security

What data regions does Langfuse Cloud support?

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Self Hosting

Are prebuilt ARM images available?Are older versions of the SDK compatible with newer versions of Langfuse?I cannot connect to my docker deployment, what should I do?I have forgotten my passwordHow can I restrict access on my self-hosted instance to internal users?

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Setup

How to use Langfuse Tracing in Serverless Functions (AWS Lambda, Vercel, Cloudflare Workers, etc.)What data regions does Langfuse Cloud support?How to manage different environments in Langfuse?I have setup Langfuse, but I do not see any traces in the dashboard. How to solve this?Where do I find my Langfuse API keys?

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Tracing

How to use Langfuse Tracing in Serverless Functions (AWS Lambda, Vercel, Cloudflare Workers, etc.)How do I link prompt management with tracing in Langfuse to see which prompt versions were used?How to manage different environments in Langfuse?I have setup Langfuse, but I do not see any traces in the dashboard. How to solve this?

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GitHub Discussions

We use GitHub Discussions to answer technical questions while making them easy to find. Feel free to open a new thread to get help by the community and Langfuse team.

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