A login key is a hardware security key (a YubiKey or similar WebAuthn device) that lets a staff member sign in by tapping the key against a register — no code to read, no phone to dig out. One tap and they're in. Faster than email or text-message codes at a busy counter, and more secure than a PIN.

In the Admin mode, open Staff — each row's Login Key column carries the Add key action that starts the pairing flow. To sign in with a key once it's paired, pick a location on the sign-in card and tap Sign in using key.

Hardware

Two pieces of gear cover the standard setup: an NFC reader plugged into the register's USB port, plus per-staff YubiKeys. The reader is what staff tap their key against; the YubiKey is the key itself. Direct USB also works without a reader — the YubiKey doubles as a USB device — so a register without a reader can still take key sign-ins.

• YubiKey (e.g. YubiKey 5 NFC). The physical key — small, keychain-sized, with a metal Y contact pad. Each staff member gets their own; Rundoo pairs the key to a Staff record, and from then on that key signs that staff in.
• NFC reader (e.g. Identiv uTrust 3700 F). A small USB puck staff tap their YubiKey against. Optional — keys also work plugged directly into a USB port — but a reader speeds up rotations at a busy counter, since clerks tap without unplugging between shifts.

For sourcing and the broader register-station gear list, see Hardware setup.

Setting up a key

Setup is a one-time flow an admin runs per staff member: plug in the NFC reader, pair the staff's YubiKey, test the sign-in. Plan on five minutes per person, most of that spent waiting for the browser's security prompts.

Step 1: Plug in the NFC reader

Connect the NFC reader to an open USB port on the register computer. The reader is plug-and-play on macOS and on current Windows builds — no driver install for the common path. If you're adding readers to more counters, order them through your implementation lead.

Step 2: Open the staff list in Admin

In the Admin mode, open the Staff tab from the left sidebar. Each staff row has a Login Key column with an Add key action when no key is paired, or Edit key once one is.

In Admin mode, open Staff from the left sidebar.

The Login Key column on the Staff list — Add key starts the pair.

<aside> ♻️

Deactivate and reuse keys between staff. When someone leaves, open their row and deactivate the key — you can then walk through this same flow to pair the same physical YubiKey with a different staff member. The hardware doesn't need to be discarded.

</aside>

Step 3: Start the pair from the Set up staff key modal

Clicking Add key opens the Set up staff key modal. Tap Set up key → to begin the pair. Rundoo hands off to your browser's security prompt from here.