Acp

Cursor in JetBrains and the End of IDE Lock-In

One of the quietest but most important developer-tooling stories of March 2026 is that Cursor is now available directly inside JetBrains IDEs through the Agent Client Protocol, or ACP, registry.

At first glance, this looks like a convenience feature. Cursor users can keep their preferred agent while staying in IntelliJ IDEA, PyCharm, or WebStorm. JetBrains users get access to a popular agentic workflow without switching editors. Nice, but not transformative.