Alt (also styled ALTxyz) is a digital marketplace and vault platform for trading-card collectors and investors. Founded in 2020, it enables users to buy, sell, consign, and securely store graded cards, while offering lending programs backed by their vaulted holdings. Its ecosystem blends financial flexibility with a collector-first design, serving users in more than 70 countries.

At the core of Alt’s platform is Alt Value, a proprietary engine that aggregates verified sales data to deliver real-time pricing across millions of cards. This technology powers its Fixed Price Marketplace and Liquid Auctions, which run weekly to provide continuous liquidity and transparent price discovery.

In 2025, Alt introduced Alt Rewards and Snap-to-Sell, tools that make it easier for collectors to sell cards, earn benefits, and access flexible liquidity options within the Alt ecosystem.