Seeker's USDC Earn Vault Puts Your Idle Stablecoins Into Kamino

Solana Mobile has launched the USDC Earn Vault in Seed Vault Wallet, a one-tap way for Seeker owners to earn variable yield on USDC through Kamino's SOL/BTC lending market. It went live on August 19, 2026, with no lockup, no minimum deposit, and no withdrawal fee.

The Seeker USDC Earn Vault is the first native yield product built into Seed Vault Wallet, the self-custody wallet that ships on every Seeker device. Until now, stablecoins sitting in that wallet just sat there. Moving them into a lending position meant opening a dApp, connecting, approving, and managing the position yourself.

How does the Seeker USDC Earn Vault work?

You tap "Deposit" on the Seeker Seed Vault Wallet home tab, pick an amount, and your USDC starts earning immediately. There's no minimum, no cap, and no waiting period before yield begins accruing.

Behind that tap, the vault splits your deposit two ways:

95% goes into Kamino's SOL/BTC Market USDC lending pool, where borrowers pay interest to draw USDC against SOL and BTC collateral.
5% stays in a reserve buffer so withdrawals can settle without unwinding the lending position first.
A flat 0.25% annual platform fee is already subtracted from the APY shown in the wallet.

Yield accrues continuously and compounds automatically. You don't claim anything, restake anything, or move a position between pools when rates shift. The live APY updates on the home tab, so the number you see is the rate the pool is paying right now.

Withdrawals work the same way in reverse. Most settle instantly out of the reserve. Larger ones get processed in the same transaction, drawing from the Kamino position directly. There's no exit queue or minimum holding period.

Kamino's SOL/BTC market is where the yield comes from

The interest comes from borrowers. Kamino's SOL/BTC Market is an isolated lending market where users deposit SOL or BTC as collateral and borrow USDC against it. Those borrowers pay a variable rate, and that rate is what flows back to depositors. When borrowing demand rises, the APY rises. When it falls, so does your yield.

Kamino runs separate markets rather than one shared pool, so the risk in the SOL/BTC Market is scoped to SOL and BTC collateral. A blowup in some unrelated long-tail asset on another Kamino market doesn't reach into this one.

Kamino is one of the larger lending protocols on Solana, with over $1.25 billion in TVL as of August 21, 2026, according to DefiLlama. Solana Mobile cites 20 external audits and no bad debt incidents in the protocol's history as the reason it picked Kamino as the venue.

Who can use it, and what to know first

You need a Seeker running the latest version of Seed Vault Wallet, and you need to be in a supported region. The Earn Vault is not available in the United States, the United Kingdom, or Canada.

The launch lands during Seeker Summer, Solana Mobile's ongoing campaign that has distributed up to 89 million SKR tokens worth roughly $626,000, with more than half of the distributed supply staked by recipients.

The USDC Earn Vault is live now in Seed Vault Wallet. Update the app on your Seeker, check the APY on the home tab, and decide from there.