Framework for chaining LLM calls, tools and retrieval.
A large ecosystem for building LLM applications in Python or TypeScript, covering prompts, tool calling, retrieval and agents.
Key info
- Pricing
- Open source
- Category
- Frameworks
- Best for
- Intermediate
- Cost
- Free and open source (MIT)
- Language
- Python and TypeScript
- Install
- pip install langchain, or npm install langchain
- Related
- LangGraph for agent workflows, LangSmith for testing and tracing
- Models
- Swap between OpenAI, Anthropic, Google, local models and more
- Good for
- Apps that connect a model to your own data and tools
Related reading
- Fundamentals
Row level security is the security boundary
If your database rows are protected by a check in your application code, they are not protected. Anything holding a key can talk to the database directly, an…
Expert