About UltraContext
UltraContext is an open source context SDK from impossibl that captures, stores and serves the working context of AI coding agents. Its tagline is to control what agents see, and its aim is to give every agent the same context everywhere instead of leaving it locked inside separate sessions.
It works in three steps. A background daemon captures sessions from your agents and syncs them in real time to your own ultracontext. Sessions are stored on your context server filesystem, which can be mounted as a portable filesystem and organized with tools such as QMD, Gbrain or your own. A command line interface then lets agents pull relevant context on demand wherever they run, with search handled by the context server so the agent's context window stays lean.
It suits developers who use several coding agents and want shared, searchable history that they own and host. It installs as a global npm package, and the site links to documentation and a changelog.
The project is open source, and the site publishes no pricing.