Agent frameworks
LangChain4j
Idiomatic JVM integration for models, tools, and retrieval using Java application patterns.
Overview
Research summary
LangChain4j is a Java library for integrating language models into JVM applications. It provides common interfaces for model providers and embedding stores, plus utilities for tool calling, retrieval-augmented generation, and agent workflows. Developers can expose application behavior through typed interfaces and integrate with frameworks such as Spring Boot or Quarkus. Its provider and storage abstractions help applications switch integrations without rewriting all orchestration logic. LangChain4j is a distinct Java project with its own repository and release lifecycle, rather than an entry duplicating the Python LangChain distribution.
Repository summary
- Stars
- Unavailable
- Open issues
- Unavailable
- Last push
- Unavailable
- Commits, 90 days
- Unavailable
- Repository activity
- Not scored
- Version
- Unavailable
Recorded catalogue figures. View repository data and provenance →
Classification
Pricing & services
Paid services unknown
Whether the provider offers paid products or services has not been established.
Licence scope
Implementation
Recorded implementation details and interfaces for LangChain4j.
Implementation details
Java language-model application and agent library
- Languages
- Java
- Repository type
- source
Recorded interfaces and capabilities
Licence scope
Repository
Repository snapshots, release information and recorded maintenance signals.
Repository snapshot
- Stars
- Unavailable
- Open issues
- Unavailable
- Last push
- Unavailable
- Commits, 90 days
- Unavailable
- Repository activity
- Not scored
- Archived
- Not recorded
Repository activity is a snapshot, not a quality or popularity ranking. It combines recent-push freshness (50%), 90-day commits (30%) and issue pressure (20%).
Maintenance and provenance
- Catalogue snapshot
- 2026-10-06
Documentation
Recorded references and research provenance for this entry.
Recorded sources 5
- https://docs.langchain4j.dev Project page
- https://github.com/langchain4j/langchain4j Linked repository · Research reference
- https://docs.langchain4j.dev/intro/ Documentation
- https://github.com/langchain4j/langchain4j/blob/main/README.md Research reference
- https://api.github.com/repos/langchain4j/langchain4j Research reference
Research metadata
- Research date
- 2026-10-02
- Catalogue snapshot
- 2026-10-06
Community & social 4 channels
Communities
- Discorddiscord.gg/JzTFvyjG6ROfficial
- GitHub Discussionsgithub.com/langchain4j/langchain4j/discussionsOfficial
Link details for GitHub Discussions
- Last checked
Social & updates
- Blueskybsky.app/profile/langchain4j.devOfficial
- Xx.com/langchain4jOfficial