---
title: "LangChain"
description: "Framework for building apps on top of language models. Pricing: Free, hybrid."
canonical: "https://vetted.tools/tools/langchain"
source: "https://vetted.tools/tools/langchain.md"
---

# LangChain

Framework for building apps on top of language models. Pricing: Free, hybrid.

Source: https://vetted.tools/tools/langchain

Framework for building apps on top of language models

- Slug: `langchain`
- Website: [https://langchain.com](https://langchain.com)
- Free version: yes
- Starting price: free
- Pricing model: hybrid
- Technical level: 4 of 5
- Platforms: Python, JavaScript, API
- API available: yes
- Documentation: [https://python.langchain.com/docs](https://python.langchain.com/docs)
- Categories: [Automation](https://vetted.tools/tools/automation), [Data Science](https://vetted.tools/tools/data-science), [Development](https://vetted.tools/tools/development)

## Features

- Prompt management
- Chain operations
- Agent frameworks
- Memory systems
- Tool integration
- Vector store integration

## What people use it for

- Custom AI applications
- Chat interfaces
- Document processing
- Knowledge bases
- Automated workflows

## From the vendor

Framework for developing applications powered by language models, enabling complex chains of operations and integration with external tools.

## Elsewhere on this site

- Home: https://vetted.tools/index.md
- Use cases: https://vetted.tools/use-cases.md
- Tools: https://vetted.tools/tools.md
- The brief: https://vetted.tools/brief.md
- Assessment: https://vetted.tools/assessment.md
- Site summary for agents: https://vetted.tools/llms.txt
- Every published page in one file: https://vetted.tools/llms-full.txt
- Every URL the site publishes: https://vetted.tools/sitemap.xml