Wallets & Payments

Crypto Wallet Development

Build secure, multi-chain crypto wallets with MPC custody, ERC-4337 account abstraction, biometric auth, and native DeFi integration. Custodial, non-custodial, and institutional wallet solutions.

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Core Capabilities

👛

Multi-Chain Support

Single wallet supporting Ethereum, Bitcoin, Solana, Polygon, BSC, Arbitrum, and 20+ chains with unified balance view and transaction history.

🔐

MPC Custody

Multi-Party Computation key management — no single point of failure. Keys are split across distributed parties for institutional-grade security.

⚡

Account Abstraction (ERC-4337)

Smart contract wallets with social recovery, session keys, gas sponsorship, batched transactions, and passkey authentication.

🔄

Built-in DeFi

Swap, stake, bridge, and earn yield directly within the wallet. WalletConnect v2, dApp browser, and protocol integration.

🛡️

Security Architecture

HSM integration, biometric auth, hardware wallet support (Ledger/Trezor), AML screening, and transaction simulation before signing.

📱

Cross-Platform

iOS, Android, web, and browser extension with consistent UX. React Native and Flutter options for rapid multi-platform deployment.

Our Process

1

Wallet type selection: custodial, non-custodial, MPC, or smart contract wallet based on your use case and compliance needs.

2

Chain integration: configure blockchain nodes, APIs, and indexers for all target chains.

3

Key management architecture: implement the chosen security model (MPC, HSM, secure enclave, or smart contract).

4

Frontend development: build mobile and web UIs with seamless onboarding, biometric auth, and intuitive TX flows.

5

Security audit: comprehensive penetration testing, code audit, and key management verification before launch.

Frequently Asked Questions

What types of wallets do you build?+
We build custodial wallets (exchange wallets), non-custodial wallets (user-controlled keys), MPC wallets (multi-party computation for distributed key management), and smart contract wallets with ERC-4337 account abstraction.
What is account abstraction (ERC-4337)?+
Account abstraction turns wallets into smart contracts, enabling features like social recovery, session keys, gas sponsorship, batched transactions, and multi-signature — all without changing the Ethereum protocol.
Which blockchains do you support?+
All major chains: Ethereum, BSC, Polygon, Solana, Arbitrum, Optimism, Avalanche, Bitcoin, Tron, TON, and any EVM-compatible or custom chain.
How do you handle key management?+
We implement HSM (Hardware Security Module) integration, MPC threshold signatures, Shamir's Secret Sharing, and secure enclave storage. For user-facing wallets, we support seed phrase, social recovery, and passkey-based auth.
Can the wallet integrate with DeFi protocols?+
Yes. We build wallets with native DeFi integration — swap, stake, lend, bridge, and yield farming — all accessible from within the wallet interface via WalletConnect and direct smart contract interaction.

Related Services

Crypto Payment GatewayStablecoin DevelopmentCEX DevelopmentDEX Development

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