LangChain Hub

LangChain Hub is a free community library of prompt templates for the LangChain ecosystem. Developers browse, share, and reuse prompts for chains and agents. LangChain is an open-source framework for building apps with language models. The hub saves time by offering tested starting points. Check smith.langchain.com/hub for the collection. A prompt template is a reusable prompt with slots you fill in for each task. The community adds new templates, so the library keeps growing. You can publish your own templates for others to use.

Key Features

1. Shared Prompt Templates

Browse prompt templates made by the LangChain community. Find starting points for common LLM tasks.

2. Chains and Agents Support

Templates cover both chains and agents. Chains link steps in order; agents decide actions on their own.

3. Reusable and Versioned

Pull a template and fill in your values. Versioning keeps prompts stable as they improve.

4. Community Contributions

Anyone can share their own templates with the hub. The collection grows with real-world use cases.

Frequently Asked Questions (FAQ)

What is LangChain?

An open-source framework for building applications with language models. It helps connect LLMs to data and tools.

Does the hub cost anything?

No. It is a free community library.

How do I use a template?

Find one on the hub, pull it into your LangChain app, and fill in the variables.

Can I share my own prompts?

Yes. The hub accepts community contributions so others can reuse your templates.

What are chains and agents?

Chains link LLM steps in order. Agents use an LLM to decide which steps to take.

Conclusion

LangChain Hub is a useful library of community prompt templates. Reusable, versioned prompts save developers real time on chains and agents. It is free and growing with community help. For LangChain builders, it is the first place to look for prompts. Browse the collection at smith.langchain.com/hub today. Contribute your own templates to help others too.