langchain4j/langchain4j — LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the J…

Description and use

langchain4j/langchain4j: langchain4j/langchain4j helps turn isolated prompts and tools into repeatable agent workflows.. Use it for coordinate multi-agent workflows; add tool-use pipelines. Medium: useful for prototypes or internal workflows, with dependency and maintenance checks before production.

Problem

langchain4j/langchain4j helps turn isolated prompts and tools into repeatable agent workflows.

Outcome

Medium: useful for prototypes or internal workflows, with dependency and maintenance checks before production.

Workflow

• coordinate multi-agent workflows
• add tool-use pipelines
• standardize agent memory

Evidence

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.

Source