langgraph4j/langgraph4j
🚀 LangGraph for Java. A library for develop AI Agentic Architectures in the Java ecosystem. Designed to work seamlessly with both Langchain4j and Spring AI. observed · 2026-08-28
Health v2 · maintenance only
86/100
- Activity 98
- Release rhythm 84
- Longevity 64
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 5
- age_days: 898
- days_rel: 24
- days_push: 14
- n_releases_24m: 84
Adoption not part of the score
1947 stars · 275 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
LangGraph4j is a Java library for building stateful, multi-agent applications with LLMs, inspired by the Python LangGraph project. It lets developers define cyclical graphs of agents, tools, and custom logic, and integrates with Langchain4j and Spring AI.
Use cases
- build multi-agent AI workflows in Java
- orchestrate LLM agents with stateful graphs
- add memory and context to LLM applications
- implement agent handoffs and tool calling in Java
- port LangGraph-style agent architectures to the JVM
- integrate agentic workflows with Spring AI or Langchain4j
When to choose
- you're on the JVM and want LangGraph-like agent orchestration
- you already use Langchain4j or Spring AI and need stateful multi-agent workflows
- your application requires cyclical graphs, memory, and agent collaboration
When to avoid
- you're building in Python and can use the original LangGraph directly
- you need simple single-prompt LLM calls without agent orchestration
- you're on a Java version older than 17
Facets
library · maturity active
agent-framework workflow-automation llm-inference rag large-language-models artificial-intelligence developer-tools jvm langgraph langchain4j spring-ai multi-agent stateful-graphs llm-orchestration ai-agents
2 sources
- readme: https://github.com/langgraph4j/langgraph4j · fetched 2026-08-28 · d664642e1eed
- homepage: https://langgraph4j.github.io/langgraph4j/ · fetched 2026-08-29 · af9fba370e5b
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| langgraph4j/langgraph4j | main | 86 |
For agents
markdown · JSON · MCP: product_card(name="langgraph4j/langgraph4j")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem