# LangChain
> LangChain is an open-source framework designed to facilitate the creation of applications using large language models. It provides a modular set of abstractions for document loading, vector storage, prompt management, and agentic workflows, enabling developers to 'chain' various components together.
- URL: https://optimly.ai/brand/langchain
- Slug: langchain
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## Full Details / RAG Data
### Overview
LangChain is listed in the AI Directory.
LangChain is an open-source framework designed to facilitate the creation of applications using large language models. It provides a modular set of abstractions for document loading, vector storage, prompt management, and agentic workflows, enabling developers to 'chain' various components together.
### Metadata
| Field       | Value |
|-------------|-------|
| Name        | LangChain |
| Slug        | langchain |
| URL         | https://optimly.ai/brand/langchain |
| Last Updated | 2026-03-21T01:30:37.876Z |
### Links
- Canonical page: https://optimly.ai/brand/langchain
- JSON endpoint: /brand/langchain.json
- LLMs.txt: /brand/langchain/llms.txt