Atmosphere

Real-time for the JVM — WebSocket, SSE, rooms, presence, AI streaming, and MCP. One dependency for Spring Boot or Quarkus.

Start the Tutorial View on GitHub

20-Chapter Tutorial

Build a complete real-time application from scratch. Covers @ManagedService, transports, rooms, AI streaming, MCP, clustering, and production deployment.

AI / LLM Platform

@AiEndpoint with pluggable adapters for Spring AI, LangChain4j, Google ADK, and Embabel. Tool calling, conversation memory, filters, and routing built in.

MCP Server

Expose tools, resources, and prompts to AI agents with @McpServer annotations. Works with Claude Desktop, VS Code Copilot, and Cursor.

Spring Boot & Quarkus

First-class starters with auto-configuration, native image support, Micrometer metrics, and OpenTelemetry tracing.