One-Time Passcode is a Normal Spell Card.
Spell Cards are usually activated from the hand on your turn unless their type gives another timing window.
On the current TCG and OCG Forbidden & Limited lists tracked here, One-Time Passcode is Unlimited.
YGOPRODeck lists One-Time Passcode for these formats: Common Charity, TCG, OCG, Master Duel.
A listed print of One-Time Passcode appears in 2-Player Starter Set (STAS-EN016) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for One-Time Passcode is about $0.04 on Cardmarket (prices change frequently).
