How to Look Up a Solana Wallet Identity

{
  "address": "HXsKP7wrBWaQ8T2Vtjry3Nj3oUgwYcqq9vrHDM12G664",
  "type": "exchange",
  "name": "Binance 1",
  "category": "Centralized Exchange",
  "tags": ["Centralized Exchange"]
}

{
  "error": "No identity information available for this address",
  "code": 404
}

const checkIfExchange = async (address) => {
  try {
    const identity = await getWalletIdentity(address);
    if (identity && identity.category === "Centralized Exchange") {
      console.log(`Funds sent to ${identity.name}`);
      return true;
    }
  } catch (error) {
    // Not a known exchange
  }
  return false;
};

const getDisplayName = async (address) => {
  try {
    const identity = await getWalletIdentity(address);
    return identity ? identity.name : shortenAddress(address);
  } catch (error) {
    return shortenAddress(address);
  }
};

// Usage in UI
const displayName = await getDisplayName("HXsKP7wrBWaQ8T2Vtjry3Nj3oUgwYcqq9vrHDM12G664");
// Returns: "Binance 1" instead of "HXsKP...G664"

const identifyTransactionCounterparties = async (transactions) => {
  // Extract all unique addresses
  const addresses = [...new Set(
    transactions.map(tx => tx.counterparty)
  )];

  // Batch lookup (up to 100 at a time)
  const allIdentities = [];
  for (let i = 0; i < addresses.length; i += 100) {
    const chunk = addresses.slice(i, i + 100);
    const identities = await batchIdentityLookup(chunk);
    allIdentities.push(...identities);
  }

  // Create a map for quick lookup
  const identityMap = new Map(
    allIdentities.map(id => [id.address, id])
  );

  // Enrich transactions with identity info
  return transactions.map(tx => ({
    ...tx,
    counterpartyName: identityMap.get(tx.counterparty)?.name || "Unknown"
  }));
};