LangGraph — open-source AI Infrastructure

Updated 2026-09-03 · tool · AI Infrastructure · rev 1 · structured JSON

v1.0 GA; pin versions (LangChain CVE cluster)

• Open source: yes (MIT)
• Self-hostable: yes
• Pricing model: free
• Best for: Developers building long-running, stateful agents and workflows needing durable execution and human oversight.
• Last verified: 2026-09-04

Is LangGraph open source?

Yes, LangGraph is open source under the MIT license.

How much does LangGraph cost?

LangGraph is free to use.

Can I self-host LangGraph?

Yes, LangGraph can be self-hosted (the source is available under the MIT license).

• Source: github · github.com/langchain-ai
• Repository: https://github.com/langchain-ai/langgraph

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