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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.

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Java
13.4k
2.9k
428 contributors
Apache License 2.0
website
AchievementsView all →
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Momentum

How fast langchain4j/langchain4j is gaining stars, and where it lands on Trendshift and GitHub Trending

Activity and trending

Stars, forks and merged pull requests each day or month, lined up with the repository's rank on Trendshift Trending

Sep 13 – Nov 12, 2026

Stars +317 in 61 days

051015
13

Forks +291 in 61 days

02040
35

Merged PRs 270 in 61 days

051015
15

Trendshift Trendingwhere the repository ranked each day it made the top 25

Not in the Trendshift top 25 in this period

Sep 13Sep 21Sep 29Oct 7Oct 15Oct 23Oct 31Nov 8
The left and right arrow keys step from day to day; Home and End go to the first and the last

Stars, forks, merged pull requests and Trendshift Trending rank, by day
DayStars gainedForks gainedMerged PRs
Sun, Sep 13, 2026+3+10
Mon, Sep 14, 2026+13+612
Tue, Sep 15, 2026+8+35
Wed, Sep 16, 2026+8+69
Thu, Sep 17, 2026+8+20
Fri, Sep 18, 2026+10+32
Sat, Sep 19, 2026+0+40
Sun, Sep 20, 2026+5+00
Mon, Sep 21, 2026+8+01
Tue, Sep 22, 2026+6+41
Wed, Sep 23, 2026+9+30
Thu, Sep 24, 2026+2+31
Fri, Sep 25, 2026+0+14
Sat, Sep 26, 2026+4+11
Sun, Sep 27, 2026+4+10
Mon, Sep 28, 2026+7+21
Tue, Sep 29, 2026+6+25
Wed, Sep 30, 2026+7+65
Thu, Oct 1, 2026+7+19
Fri, Oct 2, 2026+6+31
Sat, Oct 3, 2026+3+50
Sun, Oct 4, 2026+2+20
Mon, Oct 5, 2026+1+215
Tue, Oct 6, 2026+1+26
Wed, Oct 7, 2026+6+211
Thu, Oct 8, 2026+8+32
Fri, Oct 9, 2026+3+37
Sat, Oct 10, 2026+0+30
Sun, Oct 11, 2026+3+40
Mon, Oct 12, 2026+8+34
Tue, Oct 13, 2026+8+54
Wed, Oct 14, 2026+6+141
Thu, Oct 15, 2026+9+812
Fri, Oct 16, 2026+3+258
Sat, Oct 17, 2026+3+300
Sun, Oct 18, 2026+0+350
Mon, Oct 19, 2026+7+272
Tue, Oct 20, 2026+0+32
Wed, Oct 21, 2026+9+74
Thu, Oct 22, 2026+6+75
Fri, Oct 23, 2026+6+312
Sat, Oct 24, 2026+3+20
Sun, Oct 25, 2026+5+30
Mon, Oct 26, 2026+10+39
Tue, Oct 27, 2026+7+215
Wed, Oct 28, 2026+6+29
Thu, Oct 29, 2026+5+27
Fri, Oct 30, 2026+8+12
Sat, Oct 31, 2026+2+40
Sun, Nov 1, 2026+5+00
Mon, Nov 2, 2026+7+713
Tue, Nov 3, 2026+5+18
Wed, Nov 4, 2026+6+29
Thu, Nov 5, 2026+4+21
Fri, Nov 6, 2026+7+510
Sat, Nov 7, 2026+4+20
Sun, Nov 8, 2026+1+20
Mon, Nov 9, 2026+6+29
Tue, Nov 10, 2026+9+214
Wed, Nov 11, 2026+4+212
Thu, Nov 12, 2026+0+00
Total+317+291270
  • 1#1 on the list
  • 7Rank that day
  • Not trending
1

    • GitHub trending history

    Where the repository ranked on GitHub Trending, one dot for each day it was on a list

    Mar 7, 2024 – Jun 7, 2025Best #13

    #1#5#10#15#20#25
    Top 10
    Oct 2023AprOctAprOctAprOct
    The left and right arrow keys step from day to day; Home and End go to the first and the last

    Mentions and achievements

    Where people are talking about langchain4j/langchain4j, and every badge it has earned
    1. Oct 121 post

      • I built Telar, an open-source Kotlin Multiplatform library for AI agent workflows as typed graphs (early alpha, feedback wanted)

        Read full on Reddit

        r/Kotlin

    2. 3 months earlier
    3. Jul 261 post

      • • Unified API over 20+ LLM providers and 30+ vector stores • Supports tool calling, agents, RAG, and MCP integration • Seamless integration with Quarkus, Spring Boot, Helidon, and Micronaut

        Read full on X, posted by @the_osps

        @the_osps · x.com

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