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Project comparison
Langchain4j vs langchain
Compare adoption, momentum, maintenance health, and project basics before choosing which tool to evaluate deeper.
Langchain4j
LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a unified API over popular LLM providers and vector stores, and makes implementing tool calling (including MCP support), agents and RAG easy. It integrates seamlessly with enterprise Java frameworks like Quarkus and Spring Boot.
Best matched with other agent tools.
11.9K
Stars
0
Weekly
69/100
Health
142.3K
Stars
+599
Weekly
86/100
Health
Quick Take
Adoption
langchain has the larger GitHub footprint with 142.3K stars.
Momentum
langchain is currently growing faster at +599 stars this week.
Maintenance
langchain has the stronger automated maintenance signal at 86/100. This is not a security or fit verdict.
Side-by-side evidence
Use these signals to narrow your choice, then confirm setup, license, and fit upstream.
| Signal | Langchain4j | langchain |
|---|---|---|
| Evidence status | Basic listing· 2d ago | Recently verified· 2d ago |
| GitHub stars | 11.9K | 142.3K |
| Weekly growth | 0 | +599 |
| Health score | Healthy69/100 |
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