The framework-neutral ACP Streamable HTTP and WebSocket endpoint: routing, sessions, SSE mailboxes, the status and close-code table, the Origin check and shutdown, behind the host contract every server adapter implements

Test utilities for ACP SDK - InMemoryTransportPair, MockAcpAgent, MockAcpClient

The ACP endpoint as a Servlet 6 servlet, with WebSocket upgrades through Jakarta WebSocket 2.1, for any servlet container: Tomcat, Jetty, Undertow, Spring MVC

The ACP endpoint as a Spring WebFlux RouterFunction, Streamable HTTP and WebSocket on one path, for any WebFlux server: Reactor Netty, Tomcat, Jetty

Quarkus extension for ACP agents and clients: an @AcpAgent bean served over stdio, Streamable HTTP or WebSocket on the Quarkus HTTP server, and ACP clients configured from quarkus.acp.*