LangChain / LangGraph

LangChain's open-source agent frameworks, including LangGraph, a low-level orchestration framework for building resilient agents.

Use case

Agent frameworks

Pricing tier

Free

Pricing note

LangGraph is MIT licensed. The separate LangSmith platform lists a $0 Developer seat and a $39/seat Plus plan.

Skill level*

Advanced

License

MIT (LangGraph)

Added

2026-10-15

Sources checked

• www.langchain.com
• github.com/langchain-ai/langgraph
• www.langchain.com/pricing

* Skill level and vibe badges are our own editorial labels. Pricing and plans change often; always confirm on the official site. Last checked 2026-10-15.