LangChain
Framework for building LLM apps with tool use and agentic loops.
- python
- agent
- framework
- Publisher
- langchain.com
- Type
- Component Libraries
- Pricing
- Free tier available
- Built for AI
- AI-native
- Listing
- Official site
Why we list it
The standard agent framework — pair its tool-calling primitives with our tool-call and approval UIs.
More in Component Libraries
LangGraphStateful agent orchestration — build and visualize agent state machines.assistant-uiOpen-source toolkit of chat and agent UI components for React.CopilotKitFramework for building in-app AI assistants and copilots.LlamaIndexData framework for RAG — connect your data to LLMs with retrievers and indexes.
Browse all Component Libraries →This page is a curated listing, not affiliated with LangChain. Features, pricing and terms are set by langchain.com and can change — confirm them there before relying on the tool.