LangChain
Framework for building applications with large language models
AI Agent FrameworksFree + LangSmith paid★ 98,000Works with OpenClaw
About LangChain
LangChain is the most popular framework for building applications powered by language models. It provides modular components for prompt management, chains, agents, memory, and retrieval — making it easier to build complex AI workflows.
Features
Chain composition
RAG pipelines
Agent toolkits
Memory systems
Streaming
Multi-model
LangGraph
The tally
FOR
- +Massive ecosystem and community
- +Modular and composable
- +Supports every major LLM provider
- +Excellent documentation
- +LangSmith for monitoring
AGAINST
- −Can be overly complex for simple tasks
- −Frequent breaking changes
- −Abstraction overhead
- −Steep learning curve
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