These tools integrates with

LangfusevsLangChain

OSS LLM engineering platform (acquired by ClickHouse, Jan 2026) versus The leading LLM app framework

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Choose Langfuse when…

  • •You want open-source LLM observability
  • •Self-hosting your tracing stack is important
  • •You need cost tracking across models and users

Choose LangChain when…

  • •You want a broad, flexible LLM orchestration toolkit
  • •You need integrations with many tools and data sources
  • •You're prototyping or exploring LLM app patterns

Side-by-side comparison

Field
Langfuse
LangChain
Category
Observability
Pipelines & RAG
Type
Open Source
Open Source
Free Tier
✓ Yes
✓ Yes
Pricing Plans
Cloud: $59/mo
—
GitHub Stars
⭐ 7,000
⭐ 93,000
Health
●95 — Active
●100 — Active

Langfuse

Open-source platform for tracing, evaluations, and prompt management. Self-hostable alternative to LangSmith with broad framework support. Acquired by ClickHouse in January 2026; OSS core continues with deeper ClickHouse-backed analytics.

Website ↗GitHub ↗

LangChain

Most widely used framework for building LLM applications. Chains, agents, RAG pipelines, and deep integrations with 300+ tools.

Website ↗GitHub ↗

Shared Connections12 tools both integrate with

CrewAILangGraphOpenHandsAutoGenLlamaIndexLiteLLMLangSmithRAGASPortKeyOpenAI APIVercel AI SDKLangWatch

Only Langfuse (19)

Claude CodeCursorLangChainDifyMastraAgnoDeepEvalHeliconePromptFooBraintrust

Only LangChain (21)

Semantic KernelQdrantChromaPineconeWeaviatepgvectorLangfuseAnthropic APIDSPyHaystack

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See how Langfuse and LangChain fit into the bigger picture — 235 tools, 543 relationships, all mapped.

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