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Project comparison
Langchain4j vs Hermes Agent
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.
11.9K
Stars
0
Weekly
74/100
Health
Hermes Agent
The agent that grows with you
144.7K
Stars
0
Weekly
80/100
Health
Quick Take
Adoption
Hermes Agent has the larger GitHub footprint with 144.7K stars.
Momentum
Langchain4j is currently growing faster at 0 stars this week.
Maintenance
Hermes Agent has the stronger health score at 80/100.
Side-by-side Metrics
| Signal | Langchain4j | Hermes Agent |
|---|---|---|
| GitHub stars | 11.9K | 144.7K |
| Weekly growth | 0 | 0 |
| Health score | 74 | 80 |
| Contributors | 400 | 1.0K |
| Commits per week | 28.2 | 610.4 |
| Open issues | 730 | 10.2K |
| Language | Java | Python |
| License | Apache-2.0 | MIT |
| Last commit | 19h ago | 15h ago |
| Last release | 1.14.1 | v2026.5.7 |
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