Solscan is a popular block explorer for the Solana blockchain, and it offers an API for developers to access blockchain data programmatically.
Solscan API Basics

Website: https://solscan.io/
API Documentation: While Solscan doesn't have official public documentation, developers have reverse-engineered many of its API endpoints.
Common API Endpoints
Here are some frequently used endpoints:
Account Information
https://api.solscan.io/account/?address={wallet_address}Token Holdings
https://api.solscan.io/account/tokens?address={wallet_address}Transaction History
https://api.solscan.io/account/transactions?address={wallet_address}&offset=0&limit=10Token Information
https://api.solscan.io/token/{token_address}Transaction Details
https://api.solscan.io/transaction/{tx_signature}Usage Notes
Rate Limits: Solscan's API has rate limits (exact limits not publicly documented)
Authentication: Most endpoints don't require API keys, but this may change
Alternatives: For production use, consider Solana's official RPC endpoints or other dedicated API services
Example Request
fetch('https://api.solscan.io/account/?address=your_wallet_address')
.then(response => response.json())
.then(data => console.log(data)); 