Unified Smart Wallet for Cross-Chain Address Management
Web3 Platform / Infrastructure Provider
Impact at a glance
Single identity across EVM chains
ERC-4337 account abstraction
Safe-based custody patterns
Overview
Cross-chain identity is a real headache in Web3 — users end up with a different wallet address on every network, which makes onboarding confusing and custody messy for any serious wallet product. UniDev built a multi-chain account abstraction wallet system on ERC-4337 and Safe-based custody patterns that gives every user the exact same address across every EVM-compatible chain.
Client results
- Less user confusion from multiple addresses
- Stronger security story through abstraction
- Faster path to multi-chain app adoption
Who this is for
- Wallet & custody teams
- Web3 infra providers
- Products targeting serious multi-chain users
The problem
- Users had different wallet addresses on different chains
- Managing multiple addresses caused confusion and errors
- Poor UX for multi-chain applications
- Custody gets messy for any serious wallet product without a unified identity layer
What we built
- ERC-4337 account abstraction wallet system
- Safe-based multi-sig custody for institutional-grade security
- Custom deterministic deployment logic so the address never changes across chains
- Gas abstraction and session management layered on top of the ERC-4337 foundation
Key features
Screenshots
Tech stack
Our role
- 1.Account abstraction architecture
- 2.Smart wallet integration (Safe, ERC-4337)
- 3.Cross-chain deployment strategy
Why clients choose this
Demonstrates UniDev’s ability to build advanced Web3 wallet infrastructure — one address across every EVM chain, institutional-grade custody, and the deterministic deployment logic that makes it possible.
Next step
Building wallets or onboarding? Let's align security, UX, and chain coverage.
Tell us about your timeline and stack—we'll reply with a clear path to launch.