← Back to changelog
Steffen Schmitz
March 3, 2025
Langfuse Java Client
Steffen SchmitzLangfuse offers a new Java API client for easy integration with your Java applications.
Langfuse added a new Java API client that allows you to easily integrate Langfuse with your Java application. Now, you can fetch prompts and submit scores using the Langfuse API directly from your Java code.
To install the Langfuse Java API client, add the following to your pom.xml:
<dependencies>
<dependency>
<groupId>com.langfuse</groupId>
<artifactId>langfuse-java</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
</dependencies>
<repositories>
<repository>
<id>github</id>
<name>GitHub Package Registry</name>
<url>https://maven.pkg.github.com/langfuse/langfuse-java</url>
</repository>
</repositories>and create a client like this:
import com.langfuse.client.LangfuseClient;
import com.langfuse.client.resources.prompts.types.PromptMetaListResponse;
LangfuseClient client = LangfuseClient.builder()
.url("https://cloud.langfuse.com") // 🇪🇺 EU data region
// .url("https://us.cloud.langfuse.com") // 🇺🇸 US data region
// .url("http://localhost:3000") // 🏠 Local deployment
.credentials("pk-lf-...", "sk-lf-...")
.build();
PromptMetaListResponse prompts = client.prompts().list();To instrument your Java application check out our Spring AI Example.
For all details, head over to the new langfuse-java repository.