Langfuse

Open-source LLM observability and evaluation platform

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About Langfuse

Langfuse is an open-source platform for tracing, evaluating and monitoring LLM applications. In everyday use, it captures traces and scores, manages prompts, runs dataset experiments and offers dashboards for cost and quality. For teams moving agents from prototype to production, that focus on reliability and visibility matters more than adding another layer of fragile automation.

Langfuse key facts

Category: AI Agents
Pricing: Freemium — a free tier lets you start, and paid plans are available if you need more.
Focus areas: observability, evals, tracing
Official site: langfuse.com

About the AI Agents category

Autonomous AI agents that plan and execute tasks for you — general agents, AI browsers, AI employees, app builders, and coding agents. The AI Agents category on Tools Hub currently lists 156 tools. Alongside Langfuse, it includes Helicone, Portkey, LiteLLM, Braintrust.

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More in AI Agents

Comparing tools in the AI Agents category? These related listings are worth a look: Helicone — AI gateway and observability for LLM apps; Portkey — AI gateway for reliable production LLM apps; LiteLLM — Unified interface for calling 100+ LLM APIs.