The clients
Cymose is one tree you reach from three places.
The full product at web.cymose.app — the branching canvas, every operation, every model. A subscription; the free tier is real.
Obsidian
Section titled “Obsidian”The Cymose for Obsidian plugin branches a conversation across a real Obsidian canvas, in your vault, in Obsidian’s own file format. It runs on a free Cymose account or your own OpenRouter key, and can pull a tree you planned on the web onto a canvas (read-only). Apache-2.0.
Terminal
Section titled “Terminal”Cymose Code is a terminal coding client — a session graph in a local SQLite
store, tools under a path jail and command allowlist, model chain and failover.
It runs on a Pro or Max plan (an agent turn costs an order of magnitude more than
a chat turn), on your own key or ours. Apache-2.0; the plan gate is one if in
an open repository.
Install:
curl -fsSL https://cymose.app/install.sh | sh