Covalent API

// Fetch recent blockchain transactions
const headers = { 'X-Api-Key': 'YOUR_API_KEY' };
const response = await fetch(`https://www.covalenthq.com/docs/api`, { headers });
const data = await response.json();
console.log('Latest transactions:', data);
const txList = Array.isArray(data) ? data : data.transactions || [];
txList.slice(0, 5).forEach(tx => {
  console.log(`TX: ${tx.hash || tx.id} - ${tx.value || 'N/A'}`);
});

// Check wallet balance
const headers = { 'X-Api-Key': 'YOUR_API_KEY' };
const wallet = '0x1234...abcd';
const response = await fetch(`https://www.covalenthq.com/docs/api`, { headers });
const data = await response.json();
console.log('Wallet balance:', data.balance || data);
document.getElementById('balance').textContent =
  `Balance: ${data.balance || 'N/A'}`;

// Fetch latest block information
const headers = { 'X-Api-Key': 'YOUR_API_KEY' };
const response = await fetch(`https://www.covalenthq.com/docs/api`, { headers });
const block = await response.json();
console.log('Block height:', block.height || block.number);
console.log('Timestamp:', block.timestamp);
console.log('Transactions:', block.tx_count || block.transactions?.length);