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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.

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The Langfuse AI assistant helps you find answers about Langfuse’s features, integrations, and best practices. It’s trained on our documentation, GitHub discussions/issues, and API.

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API

Are there any limits to the Langfuse API?

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Article

Monitoring AI Research Assistants - Ensuring Accuracy and ReliabilityWhat are the common challenges of building LLM applications?Chatbot Monitoring with Advanced ObservabilityLLM Analytics 101 - How to Improve your LLM appWhat is LLM Observability & Monitoring?

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Auth

I want to delete / cancel / close my Langfuse accountI have forgotten my passwordInviting co-workers to LangfuseWhere is my Langfuse project?

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Case Studies

How Remberg Improves Transparency of AI Features with LangfuseHow Huntr Uses Langfuse to improve their LLM app developmentHow Mava Uses Langfuse to Improve their Usage of OpenAI's API

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Cloud

I cannot see my organization in LangfuseHow do I cut my Langfuse Cloud bill?How to manage different environments in Langfuse?How do I upgrade my Langfuse account?

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Comparison

Braintrust Data Alternatives? The best LLMOps platform?The best LLMOps Platform? Helicone AlternativesArize Phoenix Alternative? Langfuse vs. Arize AI for LLM ObservabilityLangSmith Alternative? Langfuse vs. LangSmith

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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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Evaluation

How to create and manage Score Configs in Langfuse?I have setup Langfuse, but I do not see any traces in the dashboard. How to solve this?Ten Reasons to Use Langfuse for LLM Observability, Evaluations and Promp ManagementHow to capture User Feedback for Evaluation of LLM apps?

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Help

How can I receive support?How do I report an issue/feedback/bug?

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Integration

How to customize the names of observations within a Langchain trace?How to trace the OpenAI Assistants API?What is LangChain Expression Language (LCEL)?

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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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Observability

How to use Langfuse Tracing in Serverless Functions (AWS Lambda, Vercel, Cloudflare Workers, etc.)How do I track LLM cost and tokens in Langfuse?Why are the input and output of a trace empty?How to enable or disable Langfuse tracing?Link prompt management with tracing in Langfuse

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Platform

Are there any limits to the Langfuse API?I cannot see my organization in LangfuseHow do I cut my Langfuse Cloud bill?I want to delete / cancel / close my Langfuse account19 Questions about Langfuse Answered

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Product

19 Questions about Langfuse AnsweredWhich packages and projects are using Langfuse?How can I self-host Langfuse?Ten Reasons to Use Langfuse for LLM Observability, Evaluations and Promp Management

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Prompt Management

How to configure retries and timeouts when fetching prompts?How to measure prompt performance?Link prompt management with tracing in LangfuseHow can I manage my prompts with Langfuse?Ten Reasons to Use Langfuse for LLM Observability, Evaluations and Promp Management

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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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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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