DeFi Wallet Development Company
We build DeFi and Web3 wallets for products where users swap assets, connect to dApps, bridge funds, stake tokens, manage on-chain positions, and sign smart contract interactions. OmiSoft can deliver the wallet as a standalone product or add the DeFi layer to an existing mobile or web app, with WalletConnect, transaction protection, approval controls, and support for EVM networks, Solana, and TRON.
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Core Features
DeFi Wallet Features for Safe On-Chain Actions
A DeFi wallet is the interface through which users approve and execute on-chain actions. These features make complex protocol interactions understandable before signing and manageable after submission.
WalletConnect and dApp Sessions
Connect the wallet to external dApps through WalletConnect or direct integrations. Users can review requested accounts and networks, approve connection permissions, switch chains, and close active sessions.
Transaction Preview Before Signing
Show the protocol, contract, assets, amounts, fees, slippage, and approval scope before a user signs. Supported transactions can also be simulated to identify unexpected balance or allowance changes.
Built-In DeFi Actions
Let users swap tokens, bridge assets, stake funds, provide liquidity, borrow, lend, and claim rewards without leaving the wallet. Each action is presented as a guided flow rather than a raw smart contract request.
Approval and Position Management
Display active token allowances, staking positions, liquidity positions, lending balances, rewards, and transaction status. Users can review and revoke contract approvals directly from the wallet.
Our Cases
Wallet and On-Chain Products We’ve Built
Our published work includes a DEX aggregator, a multi-chain mobile wallet, and a Telegram trading product. Each case demonstrates a different part of the wallet and transaction infrastructure we deliver.
Discuss a Similar Product
Web3
DEX Aggregator Solution: Custom App Development
DeFi/DEX aggregator dApp offering liquidity and rates across Ethereum, BSC, Optimism, and Polygon—an entry point to the Network ecosystem.
50 K
investments attracted
90 +
liquidity pools
4
months of product development
Crypto
Secure Multi-Chain Crypto Wallet with Fiat Integration and Cross-Chain Trading
Developed a Colombian cross-chain crypto wallet with major blockchain integration, fiat on-ramps, and full app store compliance.
2500 +
hours of development
85 K
Project Budget
7
person expert team
Telegram App
Ouinex Telegram Crypto Trading Bot Development for Effortless and Secure Crypto Trading
Ouinex is a centralized crypto exchange (CEX) focused on transparency, speed, and institutional-grade trading infrastructure.
To make crypto trading more accessible, Ouinex partnered with OmiSoft, a crypto trading bot development company, to build a Telegram-based trading app that allows users to manage accounts, trade, and handle funds without leaving the messenger.
45 %
faster user onboarding
30 %
higher engagement rate
0
security incidents post-launch
What We Do
DeFi & Web3 Wallet Development Services
Build a new DeFi wallet, add protocol functionality to an existing wallet, or embed a wallet layer into a Web3 product. We define the protocol, network, signing, data, and user-protection requirements before implementation.
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WalletConnect and dApp Integration
Integrate WalletConnect and direct dApp connections with session creation, account and chain changes, request handling, permission review, session expiry, and disconnect flows.
Swap and Bridge Integration
Add swap aggregators and cross-chain bridge routes with quote comparison, token approval checks, slippage settings, price-impact warnings, route status, and confirmation tracking.
Staking, Lending, and Liquidity Flows
Build deposit, withdrawal, staking, unstaking, reward-claim, lending, borrowing, and liquidity-pool flows. The wallet can also display user positions, lock periods, rewards, and protocol-specific status data.
Transaction Simulation and Signing Protection
Simulate supported transactions before signing and show expected asset, balance, allowance, and contract changes in readable form. Add warnings for unlimited approvals, unexpected recipients, or parameters that do not match the intended action.
DeFi Integration for Existing Wallets
Add DeFi functionality to an existing mobile or web wallet without rebuilding the entire product. We review the current wallet core, signing model, supported networks, frontend, backend, and API boundaries before defining the integration scope.
Need DeFi Functionality Inside a New or Existing Wallet?
Web3 Wallet Development
DeFi Wallet Delivery Models
The right delivery model depends on whether you need a complete wallet, a wallet layer inside an existing product, or protocol functionality added to an established application.
Why Build Your DeFi Wallet with OmiSoft
A DeFi wallet combines product UX, wallet infrastructure, protocol contracts, network behavior, and third-party services. We define how these parts work together before implementation and test each user flow through signing and confirmation.
Let's Build Your DeFi Wallet.
Max
CTO, Expert in Crypto Wallet Development
FAQ
Frequently asked questions
What is a DeFi wallet and how is it different from a regular crypto wallet?
A standard crypto wallet is mainly used to hold, send, and receive assets. A DeFi wallet also supports direct interactions with dApps and smart contracts, including swaps, bridges, staking, lending, liquidity pools, token approvals, and on-chain position management.
Can you add DeFi features to an existing crypto wallet?
Yes. We can add WalletConnect, swaps, bridges, staking, lending, liquidity pools, transaction previews, and approval management to an existing mobile or web wallet. Before implementation, we review the wallet core, custody model, signing flow, supported networks, backend services, and current API boundaries. For a broader custom wallet scope, see our custom crypto wallet development services.
Which DeFi protocols and connection methods can you integrate?
We integrate swap aggregators, bridges, staking contracts, lending protocols, liquidity pools, yield products, WalletConnect-based dApp connections, and custom smart contract flows. The final list is selected after checking protocol availability, supported networks, SDK or API dependencies, contract status, and maintenance requirements.
How do you protect users before they sign a DeFi transaction?
We can add transaction simulation for supported flows, readable transaction previews, price-impact and slippage warnings, contract and recipient checks, allowance visibility, and warnings for broad or unlimited token approvals. These controls help users understand the expected action before signing, but they do not replace an independent security audit of the wallet or protocol contracts.
Is a DeFi wallet always non-custodial?
No. Self-custody is common for standalone DeFi wallets, but embedded and account-abstraction products may use different key and recovery models. The right architecture depends on the product, target users, compliance requirements, and recovery experience. For self-custody, local key protection, and recovery architecture, see our non-custodial wallet development services.
Which blockchains do you support for DeFi wallet development?
Our current wallet stack covers EVM networks, including Ethereum, Polygon, BNB Chain, Base, Arbitrum, Optimism, and Avalanche, as well as Solana and TRON. Network selection also depends on whether the required DeFi protocols are available and maintained on that chain. For chain adapters, transaction handling, and network infrastructure, see our blockchain wallet development services.
Do you develop and audit DeFi smart contracts?
We can implement wallet-side contract interactions and develop custom smart contract functionality when it is part of the agreed scope. Engineering review and testing are included in delivery. A formal independent smart contract or application security audit is not presented as an OmiSoft certification and should be scoped as a separate workstream before production launch.
Do you maintain DeFi integrations after launch?
Yes. Post-launch support can cover SDK and API updates, contract or router changes, transaction-flow issues, monitoring, bug fixes, and new protocol or network integrations. The support scope and response capacity are agreed separately based on the number and criticality of the integrations.
How long does DeFi wallet development take?
A focused DeFi integration into an existing wallet can be delivered as a separate phase. A custom DeFi wallet with mobile applications, several protocol flows, and multiple networks usually takes 8–20 weeks. The final timeline depends on design readiness, existing architecture, protocol dependencies, testing scope, and independent audit requirements.
What does DeFi wallet development cost?
Custom DeFi wallet development starts from $55,000 when the scope includes a production wallet and DeFi protocol integrations. A focused integration into an existing wallet is estimated separately. Teams that need a configurable wallet core and a shorter launch path can also consider our white-label crypto wallet. Final cost depends on the number of networks, protocols, platforms, transaction flows, third-party services, and security-review requirements.
