Xean (Chao Xu)

A mathematical research agent that explores problems and checks arguments using persistent notes.

• Developer / Organization: Chao Xu and contributors
• Category: Open-source research & review agents
• Purpose: Explore mathematical problems with persistent, checked research notes.
• Key features: A mathematical research workflow built on Pi Durable, combining exploration, coordination and solution checking.
• Availability: Open-source software; MIT
• License: MIT (source (opens in a new tab))
• Website / Source code: https://github.com/chaoxu/xean (opens in a new tab)
• Version: GitHub release v4.4.0
• Version source: Official release or documentation (opens in a new tab)
• Last checked: 2026-11-01