A Local Web UI for Pi Agent Sessions

Exploring the Pi Web UI module

Sometimes a terminal is ideal. Sometimes you want a browser tab for inspecting a session, attaching to an engine, and following events. The Pi Web UI module explores that second workflow with a local Bun-based server and Pi RPC integration.

What the local module does

The implementation includes endpoints for listing and searching sessions, attaching to or starting an engine, inspecting and closing engines, and accessing workspace files. A browser can connect to an engine over WebSocket to receive session state and events and send supported Pi RPC commands.

For developers who already have access to a checkout of the module, its package defines these commands to run from the module directory:

bun run start
bun run check
bun run test

Its default bind address is loopback on port 3030; PI_WEBUI_HOST and PI_WEBUI_PORT can change it. These are source-declared commands, not a claim that a fresh deployment has been tested on every platform.

Security comes before convenience

The server can access Pi sessions, files, and engines with the server user's permissions. Authentication is optional in the inspected implementation: if PI_WEBUI_TOKEN is unset, requests are allowed without a token. Keep it on loopback, review the code and your environment, and do not expose it as a public or multi-user service without appropriate authentication, isolation, and security review. A token in a URL can also leak through browser history or logs.

Availability

This article describes a local module, not a generally available public release. No public repository or one-command public installation is linked here. If you want a browser-based interface for your Pi or agent workflow, get in touch to discuss availability and a custom implementation.

Build a safer, more usable interface for your AI workflow. Email Nikhil at Swamix Global AI Solutions · swamix.com