LangChain4j

Microsoft and LangChain4j: A Partnership for Secure, Enterprise-Grade Java AI Applications - Microsoft for Java Developers Discover how Microsoft and LangChain4j are empowering Java developers to build secure, scalable AI applications. Learn about OpenAI SDK integration, Azure support, and robust security enhancements in ...

New Blog post - 🤝 @microsoft.com + @langchain4j.dev = secure and scalable #Java #AI including Azure + OpenAI Java SDK integration. Read: devblogs.microsoft.com/java/microso...

#Azure

Release 1.2.0 and 1.2.0-beta8 · langchain4j/langchain4j Announcements We are excited to announce the release of the stable (1.2.0) version for the next batch of modules: langchain4j-anthropic langchain4j-azure-open-ai langchain4j-bedrock langchain4j-go...

#LangChain4j 1.2.0 is out!🎉

github.com/langchain4j/...

Yay, my talk on next-level @langchain4j.dev features got accepted at #BaselOne 🥳 Ready to see how to use AI for speeding up drug development? 😊

Session Catalog - IBM TechXchange 2025 Uncover the highlights and experiences that await you on our meticulously planned agenda – explore over 1,000 sessions and labs.

Come see me talk about @langchain4j.dev at IBM TechExchange October 6 - 9 in Orlando, USA. reg.tools.ibm.com/flow/ibm/tec...

GitHub - bertjan/quarkus-langchain-ollama-mcp-example: Example MCP client and server with Quarkus, Langchain4j and Ollama. Example MCP client and server with Quarkus, Langchain4j and Ollama. - bertjan/quarkus-langchain-ollama-mcp-example

Played around a bit with MCP integration with @quarkus.io, @langchain4j.dev and Ollama during the yearly hackathon with the @openvalue.eu Utrecht team.

Built a small example setup with 2 @quarkus.io apps - an MCP client that connects to an MCP server over HTTP:
github.com/bertjan/quar...

Guardrails | LangChain4j Guardrails is an experimental feature. Its API and behavior might change in future versions.

In case you missed the latest @langchain4j.dev release, a new feature that snuck in is #guardrails! You can validate LLM input & output!

docs.langchain4j.dev/tutorials/gu...

Release 1.1.0, 1.1.0-rc1 and 1.1.0-beta7 · langchain4j/langchain4j Announcements We are excited to announce the release of version 1.1.0-rc1 (release candidate 1) for the next set of modules: langchain4j-anthropic langchain4j-azure-open-ai langchain4j-bedrock lan...

#LangChain4j 1.1.0 is out! 🎉

This release includes the next batch of RC1 modules, along with some great new features!

github.com/langchain4j/...

Thank you to everyone who attended my talk "#RAG & #Tools with @langchain4j.dev" at #SouJava's 30-year celebration. The slides from my talk are available at speakerdeck.com/edeandrea/so...

30-Year #CelebrationWeek Free online Java conference with Java Champions & Enthusiasts from around the globe

Are you utterly confused about #RAG, #Tools, and #MCP? Want to learn what they are, how they work, and what things you need to consider while using @langchain4j.dev?

If so, join me tomorrow at #SouJava's 30 year celebration week!

soujava.github.io/java30y-cele...

Retrieval Augmented Generation (RAG) with Google Gemini AI and Langchain4J Create a Retrieval Augmented Generation pipeline with Google Gemini AI and the Langchain4J plugin.

I had some fun working with Google Gemini AI and @langchain4j.dev, I wrote an article about how to build a Retrieval Augmented Generation (RAG) pipeline in @kestra.io to automate RAG.
kestra.io/blogs/rag-wi...

June 12, 2025 June 12, 2025 meetup

Thanks to Prof. Michel Charpentier for the insightful session last night on #functionalprogramming in #Java, and to @ericdeandrea.dev for the lightning talk on #Java and #AI with @langchain4j.dev.

We recorded last night's sessions. The recordings are available at www.youtube.com/playlist?lis...

Run local #java #AI #agents with #ADK, @langchain4j.dev and #ollama 🚀

Expanding ADK Java LLM coverage with LangChain4j Recently on these pages, I’ve covered ADK (Agent Development Kit) for Java, launched at Google I/O 2025. I showed how to get started writing your first Java agent, and I shared a Github template that ...

An interesting perspective: to extend #ADK for #Java with
@langchain4j.dev so your Java #Agents can use any model supported by #LangChain4j or #ollama (including #gemma, #qwen, #phi, etc.)

Read more about this future integration here:
glaforge.dev/posts/2025/0...

Learn some #springai and @langchain4j.dev today's @nljug.bsky.social #JSpring with @jbaru.ch and yours truly

JNation 2025 - Java meets AI: Build LLM-Powered Apps with LangChain4j Join us for a guided tour through the possibilities of the LangChain4j framework! Chat with virtually any LLM provider (OpenAI, Gemini, HuggingFace, Azu…

Thanks everyone who attended my @LangChain4j.dev deep dive with #JanMartiska at @JNationConf.bsky.social yesterday! We hope you found it helpful!

The slides are available here:

speakerdeck.com/edeandrea/jn...

Sessions - JNation 2025

Want to learn everything there is to know about @langchain4j.dev? If you're at @jnationconf.bsky.social , come see #JanMartiska and I dive deep into #Java, #AI, @langchain4j.dev, and @quarkus.io !

jnation.pt/sessions/

Using Structured Output with OVHcloud AI Endpoints - OVHcloud Blog If you want to have more information on AI Endpoints, please read the following blog post.You can, also, have a look at our previous blog posts on how use AI Endpoints. You can find the full code exam...

Je suis joie 🥳.

Le structured output avec AI Endpoints d'OVHcloud est dispo 🤩.

Premier step avant le function calling et le MCP 🚀 (notamment avec @langchain4j.dev 😍).

📝: blog.ovhcloud.com/using-struct... 📝

Il se peut que j'ai mis du #jbang et du #Java 😇.

👋

There is an @openrewrite.github.io recipe which does all the required canges:

mvn -U org.openrewrite.maven:rewrite-maven-plugin:6.7.0:run -Drewrite.recipeArtifactCoordinates=dev.langchain4j:langchain4j-openrewrite-recipes:1.0.0-rc1 -Drewrite.activeRecipes=dev.langchain4j.UpgradeToRc1AndBeta4

Crée ton assistant personnel avec Picocli et LangChain4J Le Lava JUG est une une association créée pour partager nos expériences des TIC et promouvoir les technologies autour de la plate-forme Java en Auvergne.

Cette semaine c'est avec plaisir que je serai du côté de Clermont-Ferrand pour le LavaJUG 😊 .

Au menu, faire une CLI avec Picocli et QuarkusIO 🤩 et créer son propre assistant personnel grâce à @langchain4j.dev et AI Endpoints d'OVHcloud 🤖 .

A jeudi, 19h 👋 .

🎟️ www.lavajug.org/2025/05/22/p...

Release 1.0.0 and 1.0.0-beta5 · langchain4j/langchain4j Announcements We are excited to announce the release of version 1.0.0 for the following artifacts: langchain4j-core langchain4j langchain4j-http-client langchain4j-http-client-jdk langchain4j-open...

#LangChain4j 1.0.0 is out! 🎉

Thank you so much to everyone who contributed in one way or another - this would not have been possible without you! 🙏

github.com/langchain4j/...

At #JCON2025, @lomagnette.bsky.social dives into #AI-powered form wizards: chat, click, done — all with #Quarkus + #LangChain4j. Curious how he tames full-stack complexity with Quarkus? His #JAVAPRO article connects the dots.

Read: javapro.io/2025/05/0...

@langchain4j.dev @quarkus.io

Release 1.0.0-rc1 and 1.0.0-beta4 · langchain4j/langchain4j Announcements We are excited to announce the release of version 1.0.0-rc1 (release candidate 1) for the following modules: langchain4j-core langchain4j langchain4j-http-client langchain4j-http-cli...

#LangChain4j 1.0.0-rc1 and 1.0.0-beta4 are out! 🎉

As we celebrate the second anniversary of #LangChain4j (yay!!!), we are excited to announce the release of version 1.0.0-rc1 for several of our modules. We plan to release the next set of modules soon!

github.com/langchain4j/...

Build AI Apps and Agents in Java: Hands-On with LangChain4j - JAVAPRO International Discover how to integrate AI models & LLMs seamlessly in Java using LangChain4j. Beginner or an advanced developer, this hands-on guide walks you through the key features, from basic AI interactions to powerful agentic systems. Start building smarter apps today!

Building #LLM-powered apps? Watch out: prompt injection, key leaks & data misuse are waiting. At #JCON2025, Lize Raes & Brian Vermeer share how to secure your #AI systems. Curious?

Start early with Lize´s #JAVAPRO article & join their talk: javapro.io/2025/04/2...

#LangChain4j @langchain4j.dev

Coming very soon thanks to @ericdeandrea.dev !

AI-Powered Form Wizards: Chat, Click, Done - JAVAPRO International Discover how Conversational AI Forms transform static forms into dynamic, guided experiences that boost data quality and ease of use.

Frustrated by messy forms? Join Loïc Magnette at #JCON2025 to explore how #AI + #Java make forms that guide, assist & adapt. Ready to rethink UX? Preview his #JAVAPRO article.

Read: javapro.io/2025/04/1...

#LangChain4j #Quarkus #AIUX #ConversationalUI @langchain4j.dev

It's up to you, it does not harm to keep it if you want

We have considered this recently, but it did not gain much support

Release 1.0.0-rc1 and 1.0.0-beta4 · langchain4j/langchain4j Announcements We are excited to announce the release of version 1.0.0-rc1 (release candidate 1) for the following modules: langchain4j-core langchain4j langchain4j-http-client langchain4j-http-cli...

#LangChain4j 1.0.0-rc1 and 1.0.0-beta4 are out! 🎉

As we celebrate the second anniversary of #LangChain4j (yay!!!), we are excited to announce the release of version 1.0.0-rc1 for several of our modules. We plan to release the next set of modules soon!

github.com/langchain4j/...

Yes, but there will be an @openrewrite.github.io recipe to make it as smooth as possible :)

YouTube video by Daniel Oh Function Calling Tools with Java AI

Learn how to implement a new Java AI application for function calling using #quarkus and #langchain4j youtu.be/glNUja_54cs?... @quarkus.io @langchain4j.dev j