Yes. It is free and open source (MIT license).

Do I need to know how to code to use LangGraph?

Yes. You need to write code to use it.

What does LangGraph work with?

According to its own documentation, it works with LangChain, LangSmith, Deep Agents, OpenAI, and Gemini.

What is LangGraph good for?

Building agents that resume after crashes or interruptions, adding human review steps into an agent's workflow, giving an agent short-term and long-term memory, and debugging and tracing what an agent did step by step.

LangGraph

LangGraph is a framework that helps developers build long-running agents that keep their state and resume after failures.

What it is good for

Building agents that resume after crashes or interruptions
Adding human review steps into an agent's workflow
Giving an agent short-term and long-term memory
Debugging and tracing what an agent did step by step

At a glance

Who it is for

Setup

Requires programming

Level 5 of 5. You need to write code to use it.

Cost

Free and open source

Type

Framework or SDK

Tasks

Works with

LangChain, LangSmith, Deep Agents, OpenAI, Gemini

Momentum

Rank this week: #43 in builder tools
Best rank: #36 week 41, 2026
Stars gained last week: +435
GitHub stars: 44,321

GitHub numbers as of Nov 2, 2026. Updated weekly.

GitHub stars for LangGraph: 42,062 on Sep 24, 2026, 44,321 on Nov 2, 2026. Source: GitHub.

Ranking history

First ranked in week 40, 2026.

Official links

Setup steps are on the official pages. We do not repeat them here, since they change.

Questions

Is LangGraph free?: Yes. It is free and open source (MIT license).
Do I need to know how to code to use LangGraph?: Yes. You need to write code to use it.
What does LangGraph work with?: According to its own documentation, it works with LangChain, LangSmith, Deep Agents, OpenAI, and Gemini.
What is LangGraph good for?: Building agents that resume after crashes or interruptions, adding human review steps into an agent's workflow, giving an agent short-term and long-term memory, and debugging and tracing what an agent did step by step.

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