KAST, a global financial platform built on stablecoin rails, has announced the launch of KAST Earn Vaults, a new stablecoin yield product that enables users to earn returns on their stablecoin balances while maintaining liquidity and day-to-day usability.
The KAST Earn Vaults product is powered by Gauntlet, a decentralised finance (DeFi) risk management firm, as KAST expands its offering toward an all-in-one neobank designed for the stablecoin era. The launch is positioned as part of KAST’s broader mission to modernise everyday banking by combining stablecoin infrastructure with consumer-friendly financial tools.
KAST Earn Vaults are designed to address a key limitation of traditional banking. While conventional savings accounts often offer interest rates that struggle to keep pace with inflation, the new product allows users to put their stablecoins to work on-chain, accessing yield opportunities typically associated with DeFi without the operational complexity. One-click deposits, no gas fees, and no lock-ups are intended to simplify the user experience.
The first Earn Vault integrates the Gauntlet USD Alpha Vault, enabling KAST customers to earn between 5% and 9% APY on USDC and USDT. The strategy optimises yield within predefined risk parameters, automatically rebalancing capital across Base, Arbitrum, Optimism, and Ethereum Mainnet to capture competitive rates in real time.
Founded in 2018, Gauntlet provides risk management services across more than $42 billion in assets within leading DeFi protocols, with over $2 billion currently deployed in its self-custodial vault strategies. Its risk models are used by major institutions, including Coinbase and Gemini. Through the partnership, KAST aims to introduce institutional-grade risk management into a consumer-focused stablecoin product.
A key differentiator of KAST Earn Vaults is their integration with the KAST Card that facilitates global stablecoin payments. Funds deposited in Earn Vaults continue to generate yield until the moment a transaction is made, allowing users to spend directly from their interest-earning balance. The card can be used at more than 50 million merchants across over 150 countries, creating a direct link between saving and spending stablecoins.
This model is positioned as an alternative to traditional banking, particularly for users seeking USD-denominated savings that combine liquidity with returns, including those in high-inflation regions.
Raagulan Pathy, Founder and CEO of KAST, said:
“We’re building the financial infrastructure for the stablecoin-native economy, and our partnership with Gauntlet is foundational to that mission. We’ve designed KAST Earn to deliver what traditional banks can’t. A sustainable, USD pegged yield with complete flexibility. Our users earn yield while they sleep and can spend it on coffee the next morning with their KAST Card. KAST users do not have to choose between returns, safety, and usability – they get all three.”
The Gauntlet USD Alpha Vault marks the first phase of KAST’s Earn roadmap. The company plans to expand the offering with additional vaults supporting BTC, ETH, and SOL, alongside a broader range of risk-adjusted options tailored to different user profiles, from conservative savers to growth-oriented investors.
