System OneENGINE

SYSONE · OPEN-SOURCE INTEGRATIONS

Launch the app.
Connect your agent.

The public sysone package gives your apps and agents a launcher, SDK and MCP bridge for System One Engine.

Run sysone

App launcher · HTTP client · MCP bridge · Agent skill · MIT license

npx sysone
View on npm ↗Explore the source ↗

What the package includes

Design the small decisions your agent delegates to Jev. Use the typed service contracts from your application or launch the local MCP bridge. The included skill helps an agent choose a recipe and review uncertain results.

See setup and verification status for ChatGPT, Claude Code, Codex, Cursor and other MCP clients.

The engine is separate

The System One Engine application and studio are private-source software. The open-source launcher downloads a version-pinned, checksum-verified compiled runtime under its separate preview license. It starts the local engine and opens Studio. The npm package contains the launcher and integrations; application source remains private.

The app is available as a local preview. The public package can be inspected and built independently. Provider credentials stay with the engine.

Connect an app or agent ↗