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Working with crypto wallets

A crypto wallet is a tool that allows users to receive, store, and send digital assets. It operates using a combination of two keys: a public key (blockchain address) and a private key (secret key), which provide access to cryptocurrencies. However, the coins themselves are not physically stored in the wallet—they are represented as entries on the blockchain that reflect the transaction history.

It is important to understand that a crypto wallet does not store coins like a traditional cash wallet. Instead, it serves as a means to interact with the blockchain using key pairs. When digital assets are transferred, a new blockchain entry records the transaction between wallets.

Decentralized wallets, such as MetaMask or TokenPocket, are open-source and partially community-controlled. They are ideal for use in decentralized finance (DeFi), including asset storage, user-to-user transfers, and interacting with decentralized applications (dApps).
How to install TokenPocket

TokenPocket is a multi-chain wallet supporting a wide range of public blockchains, including Bitcoin, Ethereum, Binance Smart Chain, TRON, Polygon, Solana, Avalanche, and others. It is available as a mobile app, Chrome browser extension, and hardware wallet, making it convenient for users with different needs.

The main feature of TokenPocket is its non-custodial structure, where the recovery phrase and private key are stored exclusively on the user's device. This allows users to fully control their crypto assets and ensures a high level of security.

The wallet is used worldwide: over 20 million users from 200 countries trust TokenPocket for storing and managing their digital assets. The monthly active user base exceeds 3.5 million, highlighting its popularity in the crypto community.
Guide to creating a wallet on the Polygon:
Instructions for creating a Polygon wallet:
1. Open the TokenPocket application.
2. Click on the name of the wallet in the top left corner to switch wallets.
3. Select "Polygon" from the list of available wallets.
4. Click on "Add Wallet" to create a new Polygon wallet.

2. Tap Create and then tap Create Wallet.

3. Set the wallet name and password in order, agree to the Terms of Service and Privacy Policy, and tap Create Wallet to proceed. Back up the mnemonic phrase and tap Backup Complete to confirm.

4. Enter the mnemonic phrase for verification and tap Confirm. Now, your Polygon (Matic) wallet has been successfully created!

How to create a MetaMask wallet

MetaMask is a popular crypto wallet designed for interacting with the Ethereum blockchain. Users can access their funds through a browser extension or mobile app. In addition to Ethereum, MetaMask supports other networks like Binance Smart Chain and Polygon, making it a versatile tool for working across various blockchains.

Key Features of MetaMask:

  • Large User Base: Over 1 million people actively use the wallet.
  • Compatibility: Supports hardware wallets and integration with decentralized applications (DApps).
  • Smart Contract Interaction: Allows secure use of decentralized services.
  • Data Protection: Users can create a seed phrase to recover access in case of data loss.

MetaMask is available for Google Chrome, Firefox, and Brave browsers, as well as mobile devices on iOS and Android. Here's how to set it up in Chrome:

1. Go to the official website metamask.io and click Download Now.

2. Select Install MetaMask for Chrome, which will redirect you to the Chrome Web Store.

3. Click Add to Chrome → Add Extension.

4. After the installation is complete, click Get Started → Create Wallet

5. Create a password, agree to the terms, and click Create.

6. Write down your seed phrase (secret key) — it’s the only way to recover your wallet.

7. Confirm the seed phrase by following the prompts to complete the setup.

8. Wallet installation is now complete.
MetaMask and Security

MetaMask is a decentralized wallet that stores all data, including passwords and seed phrases, exclusively on the user’s device. This means that even in the event of a server breach, your data will not fall into the hands of attackers. However, if you lose your seed phrase, it will be impossible to recover your wallet.
To ensure security, crypto enthusiasts recommend writing down the seed phrase on paper and storing it in a physically secure location to prevent access via the internet. MetaMask does not require verification, as all interactions are facilitated via P2P connections without intermediaries.

The wallet settings include a "Security and Privacy" section that allows you to:
View and manage your seed phrase.

Monitor incoming transactions, helping to guard against unwanted actions such as "dusting" attacks.

Enable phishing site detection to prevent funds theft.
Disable the MetaMetrics function if you prefer MetaMask not to track the sites where transactions occur.

Wallet Verification

MetaMask, like most decentralized applications, does not require verification. This means users can create and use wallets without providing personal data or undergoing identity confirmation procedures.
Receiving Payments

To receive crypto, copy your wallet address displayed at the top of the MetaMask interface and share it with the sender.

If you prefer using a QR code, click the Buy button and select View Account; MetaMask will generate a QR code for easy deposits.
MetaMask supports ERC-20 tokens and other networks compatible with Ethereum. Please note: sending coins from unsupported networks may result in their loss.
How to Send Crypto via MetaMask

To send crypto, follow these steps:
  1. Click Send in the wallet interface.
  2. Enter the recipient’s address where you want to transfer the funds.
  3. Select the asset you want to send (e.g., ETH or ERC-20 tokens).
  4. Specify the amount to be transferred.
  5. Adjust the transaction speed—higher speeds require higher fees but will process the transaction faster.
  6. Click Next to confirm the operation.

After a short time, the crypto will arrive in the recipient’s wallet.
Getting Started with the MetaMask Mobile App

Creating a MetaMask wallet on a mobile device is simple — the registration process is similar to the desktop version.

Install the MetaMask app from the App Store (iOS) or Google Play (Android).

After installing the MetaMask app, click Get Started and select Create a New Wallet to create a wallet directly on your mobile device.

If you already have a MetaMask wallet created on a PC, click Import Using Secret Recovery Phrase and enter your seed phrase to access the existing wallet.

Create a strong password for your wallet. The mobile version also allows you to enable Face ID or Touch ID for convenient and secure access.

You will receive a seed phrase, which you must read, memorize, and store securely.

Never share it with anyone—access to this phrase means access to your wallet and assets.


Arrange the words of the seed phrase in the correct order to complete the setup.After this, your wallet will be ready, and you’ll become the owner of your very own MetaMask wallet on your mobile device!


How to Add the Polygon Network to MetaMask

To work on different blockchains in MetaMask, you need to add the required networks. We’ve prepared a detailed guide on how to add new networks.

Following security practices, such as saving your seed phrase and carefully adding new networks, helps minimize risks and protect your assets. By using the described instructions and recommendations, you’ll be able to efficiently manage cryptocurrencies and participate in decentralized ecosystems.