Web3 Wallet Development
Secure, multi-chain wallets your users will trust — mobile, browser, and embedded.
We build production-grade Web3 wallets used by millions: mobile apps, browser extensions, embedded SDKs, MPC vaults, and abstraction-layer smart accounts. Every wallet ships with key management, gas sponsorship, and dApp connectivity baked in.
What We Build
Everything you need, end-to-end
Mobile Wallets
Native iOS / Android wallets with biometric unlock, push signing, and multi-chain support out of the box.
Browser Extensions
Lightweight Chrome / Firefox extensions with dApp connectors, EIP-1193 providers, and hardware wallet bridges.
MPC & Multi-Sig Vaults
Threshold-signature and multi-sig infrastructure for treasuries, DAOs, and institutional custody.
Account Abstraction
ERC-4337 smart accounts with paymasters, session keys, and social recovery flows.
Embedded Wallet SDKs
White-label SDKs so your app onboards Web2 users with email or social login — wallets generated invisibly.
Security & Audits
Third-party audits, formal verification, secure enclave integration, and pen-tested signing flows.
Our Process
How we ship
- 01
Discovery
We map your users, chains, custody model, and compliance needs into a technical spec.
- 02
Architecture
AI-assisted C4 diagrams covering key storage, signing flows, RPC routing, and recovery.
- 03
Build
Sprint-based development with weekly demos. Cross-platform from day one.
- 04
Audit
Independent security audit, fuzz testing, and bounty-program kickoff before launch.
- 05
Launch & Ops
Mainnet deployment, monitoring, hot-fix retainer, and ongoing chain integrations.
Tech Stack
Built with the best tools
Case Studies
We've done this before
Smart Account Abstraction Wallet: Next-gen Infrastructure
We contributed to the development of an Abstracted Wallet built on ERC-4337, delivering seamless, gasless, and secure Web3 access for mainstream adoption. This modular wallet stack integrates pluggable modules for chain-specific logic, advanced bundler/paymaster routing, and ZK-supported workflows for identity and collateral validation. With support for real-world assets (RWAs), NFTs, and soulbound tokens (SBTs), the Abstracted Wallet unifies identity, asset management, and transaction orchestration in a cross-platform UX spanning mobile, web, and desktop.
MPC Wallet: Secure Sharded Key Infrastructure
We developed a Multi-Party Computation (MPC) wallet that leverages Shamir’s Secret Sharing protocol for key sharding and secure custody. By distributing private key shares across multiple parties, the solution eliminates single points of failure while ensuring secure signing operations. This wallet stack provides enterprise-grade security, flexibility for institutional adoption, and seamless integration with dApps through standardized abstraction layers. The MPC Wallet is designed for developers, institutions, and retail users who require secure, scalable, and recovery-ready key management.
Logistics With Web3: A Decentralized Ecosystem
We excel in the role of Blockchain Architects, resolving critical logistics challenges through innovative Web3 solutions. This project simplifies logistics for non-Web3 users by bridging technical barriers, tokenizing space consumption for efficient resource allocation, streamlining decentralization onboarding, and enhancing asset location traceability across the Web3.0 landscape. With successful implementations, our work demonstrates how transparency, efficiency, and security can be achieved in modern logistics.
FAQ
Common questions
What types of Web3 wallets does Blockhertz build?
We build custodial, non-custodial, and MPC wallets across EVM chains, Solana, and Cosmos. Deliverables include hardware wallet integration (Ledger/Trezor), DeFi protocol connectors, and multi-chain asset management.
How long does a Web3 wallet development project take?
A standard multi-chain wallet MVP takes 6–10 weeks. Timeline depends on the number of supported chains, hardware wallet integration, and DeFi features required.
Do you build mobile Web3 wallets?
Yes. We build cross-platform mobile wallets using React Native with native biometric authentication, WalletConnect v2, and deep links for dApp browser integration.
What security standards do your wallets follow?
All wallets undergo smart contract auditing, key management review, and penetration testing before delivery. We follow EIP-4337 (account abstraction) standards where applicable.
Can you add DeFi features like staking or swapping to an existing wallet?
Yes. We integrate DEX aggregators (1inch, Uniswap), staking modules, and lending protocol connectors into existing wallet codebases.
Let's talk
Ready to build it?
Tell us what you're building. We'll send back an architecture, a timeline, and a real quote within 48 hours.