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What is a DeFi Crypto Wallet, How It Works, and How to Create Your Own?

DeFi stands for decentralized finance. This concept means financial systems on blockchains that allow buyers and sellers to perform transactions without intermediaries. Access to the system is permissionless, meaning that, ultimately, everybody can use all services, including borrowing, lending, and trading.

What is a DeFi wallet? A DeFi wallet is the key to interaction with these decentralized services. It is non-custodial, so the user retains full control of their private keys, unlike in centralized exchanges where the user cedes control to a third party. This feature ensures users have complete ownership of their assets.

Over $1.7 billion in cryptocurrency was stolen in 2023 ($3.8 billion in 2022), according to blockchain analysis firm Chainalysis. Much of this is tied back to centralized platforms, which makes self-custody in DeFi wallets a great advantage.

Main Benefits of DeFi

While traditional finance is cumbersome, costly, and highly exclusive, DeFi thus brought a few undeniable benefits with itself. Let's look at some numbers:

• No middlemen. DeFi removes middlemen like banks. For example, the average cost of a remittance in traditional systems is 7%, while in DeFi, it may be as low as 0.1 to 0.5%.
• Transparency. All the transactions are on-chain, meaning they are recorded on a public ledger. In traditional systems, 90% of financial transactions are not transparent. Mostly, the user does not know what happens behind his or her transaction.
• Accessibility. DeFi platforms are available to anyone who has access to the internet. According to WorldBank, an estimated 1.4 billion adults remain unbanked worldwide. DeFi opens access to financial services for underserved communities.
• Ownership. With DeFi wallets, transactions are not frozen or blocked except by the user's will. At the same time, in the case of traditional banks, this can be done anytime through account freezing or refusal to perform a transaction.

As you probably understand, a crypto DeFi wallet is an important component for the functioning of the entire DeFi industry. Let's discuss how it works.

DeFi wallet acts as a channel for users to access decentralized platforms. The core functions of a DeFi wallet are:

• Private key management. The most sensitive part of cryptocurrency ownership is the private key. A Bitcoin DeFi wallet is supposed to generate and securely manage those keys. For example, MetaMask assigns users a recovery phrase of 12 words. This recovery phrase should be kept safe, as it could be the only way a user can recover a lost account.
• Managing transactions. This process must be easy, be it sending tokens, swapping coins, or interacting with a decentralized exchange. All this happens through the crypto DeFi wallet. Earlier, most wallets were primarily managed by ERC-20 tokens. Now, most wallets offer multichain support for Ethereum, Binance Smart Chain, Solana, etc.
• dApp integration. DeFi wallets let their users interact with decentralized apps seamlessly. Whether it be staking on Aave or trading on Uniswap, whatever a user might want to do within DeFi must be accessed from just one wallet.
• Token storage. DeFi wallet blockchains support various tokens, from regular coins to NFTs (non-fungible tokens). For example, MetaMask allows users to store fungible and non-fungible tokens on the Ethereum Network.

However, DeFi wallets come in different forms and shapes. Let's discuss them next.

The type of Bitcoin & crypto DeFi wallet used depends on whether the user needs security or convenience. Here is a comparison table of DeFi crypto wallets that SapientPro’s team can help with.

Is DeFi wallet safe? This is the first question potential users ask when deciding whether to use your DeFi wallet app. As we already mentioned, over $1.7 billion in cryptocurrency was stolen in 2023 ($3.8 billion in 2022). Following is a rundown of key security measures every DeFi wallet should implement:

• Encryption of private keys. The encryption of private keys would ensure that even if hackers gain access to the device, they will not be able to access the wallet without the decryption key.
• Two-factor authentication. An extra layer is added to raise the protection bar to a new level. Sending the verification code to the user's mobile device increases the security effect multimillion-fold.
• Backup of Seed Phrase. Users are under obligation to keep the seed phrase safe, which is required to recover a wallet in case access to it gets lost. Without a backup, users stand a chance of losing their funds forever.
• Opensource code. Most DeFi wallets, like MetaMask, publish their code open source. Therefore, developers and security researchers have full visibility into the code in order to look for possible vulnerabilities in the code. This kind of open scrutiny reduces security risks greatly.

At SapientPro, we can provide you with an external audit. We will provide an unbiased assessment of your code’s security and reliability. Our developers have enormous expertise in AMM, DeFi, DEX, Lending protocols, etc.

DeFi wallet development requires a decent technology stack that unites blockchain, smart contracts, and user interfaces. Major components are broken down as follows.

Choosing a tech stack is a very important thing, as it affects the future of your Web3 project. We precisely discuss this topic in our article Best Tech Stack for Blockchain Development.

Here is a quick guide on a step-by-step process for DeFi app development at SapientPro’s team:

1. Key features definition. We determine if the wallet will enable multi-chain transactions, staking, or NFT storage. These are features that basically take over the momentum of the scope.
2. Select blockchain. The type of blockchain used will impact transaction speed, cost, and scalability. For example, Ethereum is very popular but quite expensive to work with due to high gas fees, while using Solana allows for quicker transactions at a lower price.
3. Smart contracts development. This set of smart contracts would automatically execute specific functions, for example, the transfer of tokens and staking of funds.
4. Creation of frontend and backend. For any kind of adoption, an awesome, user-friendly interface needs to be there. 
5. Testing and auditing. The first priority is the security of a wallet, for which rigorous testing is carried out. Auditing services would be contracted through services like CertiK or OpenZeppelin to ensure review of the code for any vulnerabilities.
6. Deployment and updates. After deployment, constant updates are carried out to add new features and patch up security.

SapientPro is an experienced DeFi wallet development company. Most of our team members have worked with Web3 projects since 2020, so we know a lot of pitfalls to avoid and tricks to benefit from. Our trusted team will save you weeks of time and thousands of dollars without sacrificing quality.

The price of DeFi app development depends on factors such as complexity, inclusion of security features, and the development team's hourly/daily rates. Below is an approximate quote in USA.

As you probably guessed, DeFi blockchain wallets are a promising investment option in the background of increasing crypto adoption. They are an indispensable part of the DeFI landscape, and the earlier you enter this niche, the easier it will be for you to attract newcomers. At the same time, DeFi crypto wallets come in different forms and have many pitfalls that can greatly spoil the final result.

At SapientPro, our DeFi wallet development services deliver high-quality blockchain solutions tailored to each client’s specific needs. With more than 7 years of technological experience, we have a solid history of successfully implementing blockchain projects across diverse industries. If you're looking for a DeFi wallet development company, it's time to connect with the SapientPro experts who can bring your vision to life!