Ports & endpoints
Everything Agentissimo serves binds loopback only — 127.0.0.1 and ::1, never
0.0.0.0. See The loopback boundary.
| Surface | Port | Notes |
|---|---|---|
| Desktop app | 9085 | Default. First instance binds this. |
| Additional instances | next free port | Auto-selected; shown on launch. |
| Docs site | 4322 | Documentation preview. |
The API shape
Section titled “The API shape”The dashboard talks to the engine over HTTP and a single multiplexed event
stream. UI state updates arrive over one Server-Sent Events stream at
/api/events. Close the window and reopen it — the stream reconnects and
state is restored.
Process-supervising endpoints
Section titled “Process-supervising endpoints”Endpoints that supervise child processes or touch worktrees add a second guard on top of the loopback bind: they reject any non-loopback caller with HTTP 403. The bind keeps outsiders off the port; the guard is defense in depth behind it.