There are various tools and services available for tracking cryptocurrency wallets, ranging from free to paid options, depending on your needs and preferences. Here are some popular tools for wallet tracking:Blockchain Explorers

Etherscan (for Ethereum): Etherscan is a widely used blockchain explorer for Ethereum. It allows you to search for Ethereum addresses and view transaction history and balances.

Blockstream.info (for Bitcoin): Blockstream.info provides a comprehensive view of Bitcoin transactions and blocks. You can explore wallet addresses and their activity.

Blockchair (for multiple cryptocurrencies): Blockchair supports various cryptocurrencies, including Bitcoin, Ethereum, and Litecoin. It provides detailed blockchain data and wallet tracking features.

Wallet Tracking Services:

Blockfolio: Blockfolio is a popular mobile app that allows you to track your cryptocurrency portfolio. You can add your wallet addresses to monitor balances and transactions. It also provides price alerts and news updates.

Delta: Delta is another mobile app that offers portfolio tracking features. You can link your wallets, view your holdings, and track your crypto investments in real-time.

CoinTracker: CoinTracker is a web-based platform for tracking cryptocurrency wallets and portfolios. It supports numerous exchanges and wallets and provides tax reporting features.

APIs and Software Development Kits (SDKs):

Some cryptocurrency exchanges and platforms offer APIs and SDKs that developers can use to build custom wallet tracking solutions. Examples include the Binance API and the Coinbase Pro API.

Self-Hosted Solutions:

If you prefer greater control and privacy, you can set up your own node or blockchain explorer to track your wallet activity. For Ethereum, you can use tools like Geth or Infura to run your Ethereum node.

Trading Platforms:

Many cryptocurrency trading platforms and exchanges provide built-in wallet tracking features for users. These features often include portfolio management and transaction history.