What is langchain4j?
langchain4j is a infrastructure that LangChain4j is an open-source Java library that simplifies the integration of LLMs into Java applications through a unified API, providing access to popular LLMs and vector databases. It makes impleme. It has a Nerq Trust Score of 72/100 (B). 10.9K GitHub stars. Published by langchain4j. Last analyzed October 2026.
Why This Score
- ⚠️ Security: 1/100 — Some security concerns
- ⚠️ Maintenance: 1/100 — Maintenance activity is low
- ✅ Community: 10.9K stars, 0 downloads — Large community
- ✅ Transparency: License: Apache-2.0 — Clear licensing
Trust & Safety Overview
What langchain4j Does
langchain4j is a agent in the infrastructure category. LangChain4j is an open-source Java library that simplifies the integration of LLMs into Java applications through a unified API, providing access to popular LLMs and vector databases. It makes implementing RAG, tool calling (including support for MCP), and agents easy. LangChain4j integrates seamles. It is published by langchain4j and is open source. With 10.9K GitHub stars and 0 downloads, it has a large and active community of users and contributors.
Who Should Use langchain4j
langchain4j is well-suited for production use given its strong trust score and active community.
Details
| Author | langchain4j |
|---|---|
| Category | infrastructure |
| License | Apache-2.0 |
| Type | agent |
| Source | View on GitHub |
| Security Score | 1/100 |
| Activity Score | 1/100 |
How to Get Started
Check the trust score before installing:
curl nerq.ai/v1/preflight?target=langchain4j-langchain4j
Setup guide · Full safety report · Production review · Is it safe?
Safer Alternatives
| Tool | Trust | Stars |
|---|---|---|
| n8n | 69 | 177.3K |
| langflow | 77 | 145.4K |
| dify | 70 | 130.8K |
| open-webui | 60 | 124.5K |
| gemini-cli | 56 | 99.5K |
Frequently Asked Questions
Last updated October 2026. Trust scores based on automated analysis of public data.