Cash Stash

cash stash - neobank for 1 billion moms powered by degen yields with automated bridges

Cash Stash

Created At

ETHGlobal New York 2026

Project Description

Just Earn It

A wallet so easy that our moms can all put in $1 and start earning 5-10% APY in 5 minutes.

We abstracted away most of web3. Gave it near instant on-ramp and off-ramp. And always automatically earns degen yields that have low-to-no risk of impermanent loss.

We offer maximum APY by automatically accessing the best vaults and stable-stable pairs in any DEX in every chain (regardless of whether or not it is EVM compatible).

When necessary, the back-end bridges automatically. And while we're at it, we invented a new asset class: netting liquidity. After DeFi came vaults, and now the latest in even-less-sexy-but-stable APYs.

 

How it's Made

The initial mock UI was created in Lovable using a prompt derived from the application specification, design goals, and target technology stack. The application is planned as a React.js + TanStack SSR containerized application hosted on AWS Lightsail to support public availability and future development.

Partner technologies, Privy and Blink, were selected to help achieve the goal of creating a financial application that feels familiar and accessible to both non-crypto and crypto-native users. Privy serves as the foundation upon which Cash Stash is built, handling user onboarding through email-based account creation, embedded wallet management, and transaction signing behind the scenes.

A key innovation of the platform is the integration of non-EVM blockchain infrastructure through a Privy-based account experience. This allows users to interact with a non-EVM network using familiar authentication and wallet flows while accessing financial opportunities that would otherwise require specialized wallets, bridges, and blockchain knowledge.

By leveraging this architecture, users can deposit stablecoins into yield-generating products on the underlying network and potentially access returns that exceed those available from comparable on-chain savings and lending platforms. The complexity of cross-chain interactions, account management, transaction signing, and blockchain infrastructure is abstracted away, creating an experience that more closely resembles a traditional financial application while retaining the benefits of decentralized finance.

In addition, the application includes an integrated bridging solution designed to make asset transfers as seamless as possible for users. Rather than requiring users to navigate external bridge interfaces, funds can be transferred directly through the application experience, reducing friction and simplifying access to the underlying yield opportunities.

The bridge serves as a convenience layer that helps users move stablecoins between supported networks while maintaining a streamlined onboarding and funding process. Combined with Privy-powered account management and embedded transaction signing, this approach enables users to access non-EVM yield strategies through a familiar financial application experience with minimal blockchain-specific knowledge.

Blink further enhances the platform's funding capabilities by providing additional crypto-native methods for users to deposit and top up account balances from external sources. Together, these technologies reduce onboarding friction, simplify asset movement, and provide a user experience that bridges the gap between traditional finance and decentralized financial infrastructure.

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