touch token-api-script.js

// Replace with your Alchemy API Key
const apiKey = "demo";
const baseURL = `https://eth-mainnet.g.alchemy.com/v2/${apiKey}`;
 
async function getTokenData() {
  try {
    // The wallet address / token we want to query for:
    const ownerAddr = "0x3f5ce5fbfe3e9af3971dd833d26ba9b5c936f0be";
    const tokenAddr = "0x607f4c5bb672230e8672085532f7e901544a7375";
 
    // Get token balances
    const balanceResponse = await fetch(baseURL, {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({
        jsonrpc: "2.0",
        method: "alchemy_getTokenBalances",
        params: [ownerAddr, [tokenAddr]],
        id: 1
      })
    });
 
    const balanceData = await balanceResponse.json();
 
    // Get token metadata
    const metadataResponse = await fetch(baseURL, {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({
        jsonrpc: "2.0",
        method: "alchemy_getTokenMetadata",
        params: [tokenAddr],
        id: 2
      })
    });
 
    const metadataData = await metadataResponse.json();
 
    console.log("Token Balances:");
    console.log(balanceData.result);
    console.log("Token Metadata:");
    console.log(metadataData.result);
 
  } catch (error) {
    console.error('Request failed:', error.message);
  }
}
 
getTokenData();

node token-api-script.js

Token Balances:
{
  address: '0x3f5ce5fbfe3e9af3971dd833d26ba9b5c936f0be',
  tokenBalances: [
    {
      contractAddress: '0x607f4c5bb672230e8672085532f7e901544a7375',
      tokenBalance: '0x0000000000000000000000000000000000000000000000000000000000000000',
      error: null
    }
  ]
}
Token Metadata:
{
  decimals: 9,
  logo: 'https://static.alchemyapi.com/images/assets/1637.png',
  name: 'iExec RLC',
  symbol: 'RLC'
}

touch fetch-script.js

// alchemy-token-api/fetch-script.js
 
 
// Replace with your Alchemy API key:
const apiKey = "demo";
const fetchURL = `https://eth-mainnet.g.alchemy.com/v2/${apiKey}`;
 
// Replace with the wallet address you want to query:
const ownerAddr = "0x3f5ce5fbfe3e9af3971dd833d26ba9b5c936f0be";
// Replace with the token contract address you want to query:
const tokenAddr = "0x607f4c5bb672230e8672085532f7e901544a7375";
 
var raw = JSON.stringify({
  "jsonrpc": "2.0",
  "method": "alchemy_getTokenBalances",
  "headers": {
    "Content-Type": "application/json"
  },
  "params": [
    `${ownerAddr}`,
    [
      `${tokenAddr}`,
    ]
  ],
  "id": 42
});
 
var requestOptions = {
  method: 'POST',
  body: raw,
  redirect: 'follow'
};
 
// Make the request and print the formatted response:
fetch(fetchURL, requestOptions)
  .then(response => response.json())
  .then(response => JSON.stringify(response, null, 2))
  .then(result => console.log(result))
  .catch(error => console.log('error', error));

node fetch-script.js

{
  "jsonrpc": "2.0",
  "id": 42,
  "result": {
    "address": "0x3f5ce5fbfe3e9af3971dd833d26ba9b5c936f0be",
    "tokenBalances": [
      {
        "contractAddress": "0x607f4c5bb672230e8672085532f7e901544a7375",
        "tokenBalance": "0x00000000000000000000000000000000000000000000000000003c005f81ab00",
        "error": null
      }
    ]
  }
}