The Spark USDC wallet helps you easily store, send, and receive digital assets. You can perform cross-chain token transactions at any time, explore NFT marketplaces and dApps, and discover more opportunities. An integrated wallet for the Spark USDC ecosystem, it provides you with a secure on-chain experience.
Why choose Spark USDC wallets with OneKey

Take control of the safety that belongs to you
No real-name verification required. We collect and track no user data. Your wallet belongs only to you.

100% open-source and transparent
Spark USDC wallet is a fully open-source wallet; every line of code can be audited and verified by security experts. Security is not based on promises, but on transparency.

Intelligent Risk Protection
Built-in dApp phishing protection and suspicious token folding features automatically detect risky contracts to prevent malicious approvals or asset theft.

Global support
Provide 24/7 multilingual customer support to resolve your issues at any time.
FAQ’s
What is Spark USDC?
Spark USDC Vault (sUSDC) is a yield-bearing savings vault for USDC built by Spark. Users deposit USDC and receive sUSDC tokens that automatically accrue yield through an increasing redemption rate. It is built on the ERC-4626 tokenized vault standard, making sUSDC transferable and composable with other DeFi protocols it continues earning yield wherever it's held.
sUSDC is Spark's V1 USDC savings product, backed by the Sky Savings Rate. Yield is generated through Spark's integration with the Sky ecosystem, where Spark's position as Prime Agent gives it direct access to Sky liquidity. With over 4,300 holders and deployed since March 2025, it is one of Spark's most established savings products.
What is the best Spark USDC wallet?
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How to use a Spark USDC wallet?
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