This page may contain stale information. Last updated: 2026-09-23
Definition
The Agent Client Protocol (ACP) standardizes the connection between an IDE or agentic development environment and an agent’s full harness — planning, logic, tools, model routing, and observability. JetBrains Air and Xcode 27 are primary adopters; complements model-context-protocol (tool access).
Key Points
- 2026-09-22: jetbrains Air launches with ACP Registry — multi-vendor agents (Junie, Claude Agent, Codex, Gemini CLI, Copilot, OpenCode) under unified governance (2026-09-22-jetbrains-air-agentic-development, 2026-09-22-jetbrains-air-infoworld-corroboration)
- 2026-08-04: kiro-crew orchestrates agents behind ACP with live Activity view (2026-08-04-aws-kiro-crew-official-blog)