← Back to Leaderboard
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.
Best matched with other agent tools.
12.8K
Stars
+820
Weekly
88/100
Health
251.1K
Stars
+74.1K
Weekly
95/100
Health
Quick Take
Adoption
hermes-agent has the larger GitHub footprint with 251.1K stars.
Momentum
hermes-agent is currently growing faster at +74.1K stars this week.
Maintenance
hermes-agent has the stronger automated maintenance signal at 95/100. 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 | hermes-agent |
|---|---|---|
| Evidence status | Basic listing· 2026-10-04 09:17 UTC | Verified snapshot· 2026-10-04 09:19 UTC |
| GitHub stars | 12.8K | 251.1K |
| Weekly growth | +820 | +74.1K |
| Health score | Strong88/100 | Strong95/100 |
| Contributors | 453 | 2.2K |
| Commits per week | 37.0 | 876.8 |
| Open issues | 832 | 24.6K |
| Language | Java | Python |
| License | Apache-2.0 | MIT |
| Last commit | 2026-07-31 17:14 UTC | 2026-10-04 09:18 UTC |
| Last release | 1.18.1 | v2026.7.20 |
Weekly AI open-source movers
Get the fastest-growing projects, useful MCP servers, and technical reads in one weekly email.