Platforms & APIsOpen SourceUS
LangChain
LangChain
LangChain is a Platforms & APIs tool by LangChain. Framework for building LLM apps and agents.
Maker
LangChain
Category
Platforms & APIs
Pricing
Open Source
What it's best for
Building AI products — model access, inference, fine-tuning and deployment.
Official website ↗Frequently asked questions
What is LangChain?+
LangChain is a Platforms & APIs tool developed by LangChain. Framework for building LLM apps and agents.
Is LangChain free?+
LangChain is open-source / open-weights — free to self-host, often with optional paid hosting.
What is LangChain used for?+
Building AI products — model access, inference, fine-tuning and deployment.
Listed for information only. HotON.ai is not affiliated with the tools shown; visit the official site for current features, pricing and terms.