LangChain

AI Agents Open-source API
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About LangChain

LangChain is a framework for building LLM-powered applications. Provides tools for chains, agents, memory, and retrieval. The foundation for many agentic AI applications with extensive integrations.

Key Highlights

  • Category: AI Agents
  • Pricing: Free & open-source — Open-source, LangSmith hosted platform has paid tiers
  • API: Developer API available for integration
  • Website: langchain.com
  • Developer: Documentation available

Pricing

Open-source, LangSmith hosted platform has paid tiers

Developer Resources

Documentation Official docs and guides

Developer Notes

LangChain itself is a framework rather than a standalone API service, so it does not have a central API with standardized auth methods or rate limits. Developers can build APIs using LangChain libraries, which integrate with external APIs (e.g., via API keys for services like OpenAI). Key endpoints depend on the application built; SDKs are available in Python and JavaScript for integration.

Frequently Asked Questions

What is LangChain?

Framework for building LLM applications and agents. Discover more on IntelligenceForMe.

Is LangChain free?

LangChain is free and open-source software. Open-source, LangSmith hosted platform has paid tiers

What are the best alternatives to LangChain?

Browse similar tools in our AI Agents category to compare features and pricing. IntelligenceForMe curates the best AI tools to help you find the right fit.

Does LangChain have an API?

Yes, LangChain provides a developer API for integration into your applications and workflows. Check the <a href="https://docs.langchain.com/" target="_blank" rel="noopener">official documentation</a> for details.

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