Skip to content

Installation

Prerequisites
  • Install Java Development Kit (JDK) 8+

Use java reference documentation targetting your operating system to install a Java Development Kit. You can then validate your installation with the following command.

java --version
  • Install Apache Maven (3.8+)

Samples and tutorials have been designed with Apache Maven. Use the reference documentation top install maven validate your installation with 

mvn -version

Core Dependency

${project.version} (Latest version) =

To install the latest version of langchain4j with Maven, add the following dependency to your pom.xml file.

 <dependency>
    <groupId>dev.langchain4j</groupId>
    <artifactId>langchain4j</artifactId>
    <version>${project.version}</version>
</dependency>

To install with Gradle here is the line to add to the build.gradle file:

implementation 'dev.langchain4j:langchain4j:${project.version}'

External Stores

If you save your embeddings in an external vector store database, you can use the following dependency:(_here we use pinecone but several are available) to learn more please check the integration page

 <dependency>
    <groupId>dev.langchain4j</groupId>
    <artifactId>langchain4j-pinecone</artifactId>
    <version>${project.version}</version>
</dependency>

With Gradle it will translate to:

implementation 'dev.langchain4j:langchain4j-pinecone:${project.version}'
Last update: 2023-08-31