XOLO Keys is a collection of up to 10,000 Key Cards that was airdropped to all JRNY Club holders. The Keys can be exchanged (burned) for a Planet XOLO NFT or kept as a collectible. The window is opened indefinitely for exchanging Keys. These Keys can be obtained via OpenSea.
Holding a Key yields additional Stardust within the JRNY Club Discord server but does not stack based on the amount held.
The Villagers of XOLO and XOLO Keys supply are inversely related, meaning that when a key is exchanged (burned), the Key supply decreases, while at the same time, the Villagers of XOLO supply increases.