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langgraph4j

langgraph4j/langgraph4j

A library for developing AI Agentic Architectures in Java

GraphCanon updated Sep 17, 2026 · GitHub synced Sep 17, 2026

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2.0k stars280 forksLast push Sep 15, 2026 Java MIT

Decision brief

LangGraph4j is a Java library for developing AI-agentic architectures that integrates seamlessly with Langchain4j and Spring AI.

Good fit when

  • When you are building an application in the Java ecosystem that requires integration with both Langchain4j and Spring AI.
  • If your project demands a latest stable version of dependencies due to reliability requirements or when you need consistent behavior across different development stages.

Avoid when

  • Avoid using it if your project strictly limits external dependency versions and necessitates an older version of Java (prior to 17), as LangGraph4j demands at least Java 17.
  • If you require the absolute latest features before official release, direct snapshot use might pose instability risks that could disrupt development cycles or production environments.
Pricing:
freemium - Available at no cost; commercial support and enterprise options may incur additional charges.
Requirements:
Min 1 GB RAM

Observed Jul 17, 2026 · Source: enrich:decision_facts

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Maintenance and security

Full trust report
Maintenance
Very active (1d since push)
As of Sep 17, 2026
Provenance
Not a fork · Organization account
As of Sep 17, 2026
Security (OSV)
No lockfile
As of Jul 15, 2026

Public GitHub metadata and optional OSV scans. Signals, not a guarantee. Trust methodology.

Install

git clone https://github.com/langgraph4j/langgraph4j

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Evidence and technical details

Sourced facts, taxonomy, compatibility claims, README excerpt, and machine-readable endpoints.

Overview

LangGraph4j provides functionalities to work with AI agents in the Java ecosystem and integrates seamlessly with Langchain4j and Spring AI.

Capability facts

Languages
java

Source: github.language · Sep 17, 2026

Categories

Tags

README

Getting Started Welcome to LangGraph4j! This guide will help you understand the core concepts of LangGraph4j, install it, and build your first application. Installation To use LangGraph4j in your project, you need to add it as a dependency. Maven: Make sure you are using Java 17...

For agents

This page has a .md twin and JSON over the API.

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