Spark Opens USDT Savings Vault to OKX Users via X Layer

Spark, an on-chain capital allocation platform, has opened its USDT savings vault to OKX customers. This allows users of the centralized exchange to earn onchain yield on their stablecoin balances from inside the OKX app without needing to open a wallet or bridge funds.

The arrangement aggregates customer deposits and routes them into Spark Savings USDT on X Layer, OKX's Ethereum Layer 2. Deposits sit in the same vault contract available to any X Layer user, not in a segregated OKX pool.

Spark's USDT deposits sit almost entirely on Ethereum, with the vault holding $359.9 million. The supply cap for the X Layer vault is set at 750 million USDT and its maximum yield at 6%.