← Back to search
github Active AI dev

Repository profile

langchain4j/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.

Java Apache-2.0 main Stack scanned README.md
Stars
12,515
Forks
2,343
Watchers
112
Issues
795
Commits
3,688
Awesome lists
3

Repository updates

Follow repository updates

Get generated langchain4j/langchain4j development summaries by email, or follow the weekly and monthly RSS feeds.

Sign in to subscribe by email. RSS feeds are public.

Sign in to subscribe

Activity and growth

Tracked growth, recent movement, and commit velocity from stored repository snapshots.

Latest capture 2026-07-04 03:10

Star growth, last 7 days
No 7-day history
Commit velocity, last 7 days
No 7-day history
Stars since baseline
+422
Snapshot coverage
5

Tracked growth

5 captures since 2026-05-25

Stars from baseline +422

Time horizon

All tracked data

Stars history

Total stars

Commits history

Default branch commits

Detected stack

Frameworks, package managers, ecosystems, and dependency manifests found during catalog scans.

Scanned 2026-07-04 03:10

Stack signals
1
Package managers
2
Manifest files
80
Dependencies
1,362

Frameworks and tools

  • React frontend framework · high confidence
Maven npm java javascript

Dependency files

80 manifests
  • pom.xml java ecosystem, 2 dependencies
  • docs/package.json javascript ecosystem, 12 dependencies
  • integration-tests/pom.xml java ecosystem, 0 dependencies
  • langchain4j-agentic-a2a/pom.xml java ecosystem, 14 dependencies
  • langchain4j-agentic-mcp/pom.xml java ecosystem, 8 dependencies
  • langchain4j-agentic-patterns/pom.xml java ecosystem, 10 dependencies
  • langchain4j-agentic/pom.xml java ecosystem, 10 dependencies
  • langchain4j-anthropic/pom.xml java ecosystem, 16 dependencies
  • 72 more files

Classification

Searchable topics, generated tags, and stack labels that explain where this repository fits.

Topics
20
Tags
0
Stacks
1

AI development signals

Agent instructions and tool configuration paths found in the repository tree.

2 paths

AI agent config detected

2 config paths 2 files 0 directories
Agent instructions Gemini CLI

Similar repositories

Nearest indexed repositories by embedding similarity.

buhe/langchain-swift

🚀 LangChain for Swift. Optimized for iOS, macOS, watchOS (part) and visionOS.(beta)

433 stars
Swift 2 awesome lists

Metadata

Language
Java
License
Apache-2.0
Default branch
main
Created
2023-06-20
First commit
2023-06-20
Last pushed
2026-07-02
GitHub updated
2026-07-04
Last synced
2026-07-04 03:10
Stack detected
2026-07-04 03:10
Archived
no
GitHub Website

https://docs.langchain4j.dev

README

Appears in

3