IntelliJ IDEA – the Leading IDE for Professional Development in Java and Kotlin
AI Assistant
TutorialsHow to Use AI Agents in IntelliJ IDEA With ACP
The Agent Client Protocol (ACP) defines a common contract between a client – like IntelliJ IDEA – and an agent. IntelliJ IDEA already includes several ACP-compatible agents: Codex, Claude Agent, and Junie. Beyond these bundled options, the ACP Registry provides more choices, and teams can register internal or unlisted agents through acp.json.
The key idea is the boundary. IntelliJ IDEA remains the environment where you navigate the project, inspect code, and review changes. Across the ACP connection, each agent maintains its own models, behavior, authentication, and agent-side tools.
