Hopper

About

Hopper is the pioneering agentic development environment designed for mainframe systems. It serves as a Cursor equivalent for mainframes, integrating a genuine TN3270 terminal with specialized panels for datasets, jobs, members, and spool output. An AI agent operates throughout z/OS workflows, capable of examining datasets, reading and editing PDS members, writing JCL, submitting jobs, interpreting JES output, explaining errors, and assisting developers in debugging mainframe processes more rapidly. Hopper is supported on Windows, Linux, and macOS.