How to Get ERC-20 Token Balances with RPC Nodes – Moralis for Developers

Uncover the best solution to get ERC-20 token balances utilizing RPC nodes. Moralis’ Extended RPC Methods can help you seamlessly fetch any pockets’s token balances with a single RPC-style request. Curious to see the way it works? Try the eth_getTokenBalances endpoint in motion:

import fetch from 'node-fetch';

const choices = {
 methodology: 'POST',
 headers: {
   settle for: 'software/json',
   'content-type': 'software/json'
 },
 physique: JSON.stringify({
   "jsonrpc": "2.0",
   "id": 1,
   "methodology": "eth_getTokenBalances",
   "params": [
     {
       "address": "0xcB1C1FdE09f811B294172696404e88E658659905",
     }
   ]
 })
};

fetch('YOUR_NODE_URL', choices)
 .then(response => response.json())
 .then(response => console.log(response))
 .catch(err => console.error(err));

With one name, you’ll obtain the ERC-20 steadiness of the desired pockets. Right here’s a pattern response:

{
  //...
  outcome: [
    {
      token_address: '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2',
      name: 'Wrapped Ether',
      symbol: 'WETH',
      decimals: 18,
      logo: 'https://logo.developers.moralis.com/0x1_0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2_a578c5277503e547a072ae32517254ca',
      thumbnail: 'https://logo.developers.moralis.com/0x1_0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2_a578c5277503e547a072ae32517254ca',
      balance: '10000000000000000',
      possible_spam: false,
      verified_contract: true,
      total_supply: '2746607222348759943423350',
      total_supply_formatted: '2746607.22234875994342335',
      percentage_relative_to_total_supply: 3.64085549569e-7
    },
    //...
  ]
}

That’s all it takes – fetching ERC-20 token balances with RPC nodes has by no means been simpler. For a deeper dive, be a part of us on this detailed tutorial or take a look at our official Extended RPC Methods documentation.

Able to get began? Enroll with Moralis, and also you’ll have the ability to get ERC-20 token balances with RPC nodes in a heartbeat!

Overview

Whether or not you’re constructing a portfolio tracker, cryptocurrency pockets, tax platform, or different Web3 tasks, you’ll possible want entry to ERC-20 token balances. Historically, fetching these balances utilizing RPC nodes has been cumbersome, requiring a number of requests and guide placing collectively information. However there’s a greater approach: Moralis’ Prolonged RPC Strategies.

With our Prolonged RPC Strategies, you’ll be able to simply question decoded, human-readable information via RPC-style requests. Immediately entry ERC-20 token balances, decoded transactions, token costs, and extra with minimal effort.

Curious the way it works? On this tutorial, we’ll present you use Moralis to get ERC-20 token balances through RPC nodes. Let’s dive in!

What are ERC-20 Token Balances?

Put merely, ERC-20 token balances confer with the variety of tokens held by a particular pockets or deal with. Since varied kinds of ERC-20 tokens exist, a pockets can maintain a number of token balances concurrently. For instance, a person might need 5 Wrapped BTC, 100 USDC, and 1,000,000 Shiba Inu tokens.

Why are ERC-20 token balances necessary for builders?

ERC-20 token balances are important for a lot of Web3 purposes. Listed here are three key examples:

• Wallets: Cryptocurrency wallets have to retrieve and show ERC-20 token balances so customers can see which tokens they personal and in what quantities.

• Portfolio Trackers: Portfolio trackers depend on ERC-20 token balances to precisely monitor customers’ property, monitor worth adjustments, and replace customers on their total portfolio efficiency.

• Tax Platforms: To generate exact tax studies, tax platforms should entry the ERC-20 token balances of their customers.

These are just some examples; ERC-20 token balances are obligatory for many Web3 dapps!

Introducing Prolonged RPC Strategies – The Best Method to Get ERC-20 Token Balances with RPC Nodes 

Moralis’ Prolonged RPC Strategies streamline the method of querying decoded, human-readable information utilizing RPC nodes, making dapp improvement extra accessible.

Key information you’ll be able to entry:

• eth_getTokenBalances: Retrieve ERC-20 token balances by pockets.
• eth_getTransactions: Fetch native transactions by pockets deal with.
• eth_getDecodedTransactions: Entry detailed pockets transaction historical past by deal with.
• eth_getTokenPrice: Get costs by token addresses.
• eth_getTokenMetadata: Receive ERC-20 metadata by token deal with.
• eth_getNFTBalances: Retrieve NFTs by pockets deal with.
• eth_getNFTCollections: Entry NFT collections by pockets.

In essence, our Prolonged RPC Strategies make it straightforward so that you can question and combine decoded, human-readable crypto information into your dapps!

Why Do You Want Prolonged RPC Strategies?

Querying on-chain information utilizing typical RPC strategies could be cumbersome. These strategies aren’t optimized for widespread queries like, “What ERC-20 tokens does pockets X maintain?” To get this info, you sometimes have to make a number of requests and manually compile the info, which is time-consuming and resource-intensive. Happily, that’s the place Moralis’ Prolonged RPC Strategies are available.

Our Prolonged RPC Strategies allow you to simply get ERC-20 token balances, pockets historical past, NFT balances, and extra via easy RPC-style requests, making fetching crypto information through nodes extra environment friendly than ever.

Need to see the way it works? Try the tutorial beneath to learn to use our Prolonged RPC Strategies to get ERC-20 token balances!

3-Step Tutorial: The right way to Get ERC-20 Token Balances with RPC Nodes

We’ll now present you seamlessly get ERC-20 token balances utilizing RPC nodes. Because of the accessibility of our Prolonged RPC Strategies, you’ll be able to receive this information in three easy steps:

1. Enroll with Moralis & create a node.
2. Write a script calling the eth_getTokenBalances endpoint.
3. Run the code.

Nonetheless, earlier than you’ll be able to start, you could deal with a number of stipulations.

Stipulations

Earlier than beginning the tutorial, guarantee you’ve got the next prepared:

Step 1: Signal Up with Moralis & Create a Node

Click on the “Begin for Free” button on the prime proper to arrange your Moralis account:

From there, log in, go to the “Nodes” tab, and click on “+ Create Node”:

Subsequent, choose “Ethereum,” adopted by “Mainnet,” and click on the “Create Node” button:

This may give you two node URLs. Copy and save one of many URLs, as you’ll want it within the subsequent part:

Step 2: Write a Script Calling the eth_getTokenBalances Endpoint

Begin by opening Visible Studio Code or your most popular IDE, then arrange a brand new folder and initialize a challenge utilizing the terminal command offered:

npm init

After that, set up the required dependencies utilizing the given command:

npm set up node-fetch --save
npm set up moralis @moralisweb3/common-evm-utils

In your “package deal.json” file, make sure to add "sort": ”module”:

Subsequent, create a brand new “index.js” file and insert the offered code:

import fetch from 'node-fetch';

const choices = {
 methodology: 'POST',
 headers: {
   settle for: 'software/json',
   'content-type': 'software/json'
 },
 physique: JSON.stringify({
   "jsonrpc": "2.0",
   "id": 1,
   "methodology": "eth_getTokenBalances",
   "params": [
     {
       "address": "0xcB1C1FdE09f811B294172696404e88E658659905",
     }
   ]
 })
};

fetch('YOUR_NODE_URL', choices)
 .then(response => response.json())
 .then(response => console.log(response))
 .catch(err => console.error(err));

Exchange YOUR_NODE_URL with the node URL you copied earlier, and modify the deal with parameter as wanted to suit your question:

That’s it. From right here, you simply have to run the code.

Step 3: Run the Code

Open a brand new terminal and run the offered command in your challenge’s root folder:

node index.js

In return, you’ll get the ERC-20 token balances of the desired pockets utilizing your RPC node. Right here’s an instance of what it would appear to be:

{
  //...
  outcome: [
    {
      token_address: '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2',
      name: 'Wrapped Ether',
      symbol: 'WETH',
      decimals: 18,
      logo: 'https://logo.developers.moralis.com/0x1_0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2_a578c5277503e547a072ae32517254ca',
      thumbnail: 'https://logo.developers.moralis.com/0x1_0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2_a578c5277503e547a072ae32517254ca',
      balance: '10000000000000000',
      possible_spam: false,
      verified_contract: true,
      total_supply: '2746607222348759943423350',
      total_supply_formatted: '2746607.22234875994342335',
      percentage_relative_to_total_supply: 3.64085549569e-7
    },
    //...
  ]
}

And that’s it! It’s that straightforward to get ERC-20 token balances from RPC nodes utilizing Moralis!

To be taught extra about how this works, please take a look at the eth_getTokenBalances documentation web page. 

Additionally, need to see how you should utilize this information in follow? Try the Moralis YouTube video beneath, the place one among our builders reveals you construct a portfolio app utilizing simply the eth_getTokenBalances endpoint:

Past The right way to Get ERC-20 Token Balances with RPC Nodes – Exploring Different Prolonged RPC Strategies

Fetching ERC-20 token balances with nodes is only one side of our Prolonged RPC Strategies. Within the following sections, we’ll discover 5 different strategies and spotlight the responses you get from them:

1. eth_getDecodedTransactions
2. eth_getTokenPrice
3. eth_getTokenMetadata
4. eth_getNFTBalances
5. eth_getNFTCollections

So, with out additional ado, let’s take a more in-depth take a look at eth_getDecodedTransactions!

eth_getDecodedTransactions

With eth_getDecodedTransactions, you’ll be able to seamlessly fetch the transaction historical past of a particular pockets deal with, enriched with decoded information. Furthermore, this methodology encompasses native transfers, ERC-20 transactions, NFT transfers, and extra.

Right here’s an instance of name this premier methodology:

import fetch from 'node-fetch';

const choices = {
 methodology: 'POST',
 headers: {
   settle for: 'software/json',
   'content-type': 'software/json'
 },
 physique: JSON.stringify({
   "jsonrpc": "2.0",
   "id": 1,
   "methodology": "eth_getDecodedTransactions",
   "params": [
     {
       "address": "0xda74Ac6b69Ff4f1B6796cdDf61fBDd4A5f68525f",
     }
   ]
 })
};

fetch('YOUR_NODE_URL', choices)
 .then(response => response.json())
 .then(response => console.log(response))
 .catch(err => console.error(err));

In return for calling the script above, you’ll obtain the complete transaction historical past of the pockets. Moreover, every transaction is enriched with a human-readable occasion abstract, class tag, logos, addresses, and extra. Right here’s an instance of what it would appear to be:

{
  //...
    "outcome": [
      {
        "block_hash": "0x660274d577cd20b0b82c1bff5f3c5641ba6027544e005f9256d5add9c7447920",
        "block_number": "19868695",
        "block_timestamp": "2024-05-14T14:00:23.000Z",
        "from_address": "0xda74ac6b69ff4f1b6796cddf61fbdd4a5f68525f",
        "from_address_label": null,
        "from_address_entity": null,
        "from_address_entity_logo": null,
        "to_address": "0xdac17f958d2ee523a2206206994597c13d831ec7",
        "to_address_label": "Tether USD (USDT)",
        "to_address_entity": null,
        "to_address_entity_logo": null,
        "gas": "55331",
        "gas_price": "13623172301",
        "hash": "0xc565260238f59fc3f35b74f3011375c7d637db9b075f77d342c30d19f946272e",
        "nonce": "14",
        "receipt_cumulative_gas_used": "13917979",
        "receipt_gas_used": "41309",
        "receipt_status": "1",
        "transaction_fee": "0.000562759624582009",
        "transaction_index": "75",
        "value": "0",
        "receipt_contract_address": null,
        "nft_transfers": [],
        "erc20_transfers": [
          {
            "token_name": "Tether USD",
            "token_symbol": "USDT",
            "token_logo": "https://logo.developers.moralis.com/0x1_0xdac17f958d2ee523a2206206994597c13d831ec7_3282f332c2ac2948929f01fe7d921c51",
            "token_decimals": "6",
            "from_address": "0xda74ac6b69ff4f1b6796cddf61fbdd4a5f68525f",
            "from_address_entity": null,
            "from_address_entity_logo": null,
            "from_address_label": null,
            "to_address": "0x28c6c06298d514db089934071355e5743bf21d60",
            "to_address_label": "Binance 14",
            "to_address_entity": "Binance",
            "to_address_entity_logo": "https://entities-logos.s3.us-east-1.amazonaws.com/binance.png",
            "address": "0xdac17f958d2ee523a2206206994597c13d831ec7",
            "log_index": 338,
            "value": "50000000000",
            "possible_spam": false,
            "verified_contract": true,
            "direction": "send",
            "value_formatted": "50000"
          }
        ],
        "method_label": "switch",
        "native_transfers": [],
        "abstract": "Despatched 50,000 USDT to Binance 14",
        "possible_spam": false,
        "class": "token ship"
      },
      //...
    }
  ]
}

eth_getTokenPrice

With eth_getTokenPrice, now you can seamlessly fetch token costs based mostly on contract addresses utilizing RPC-style strategies. You possibly can retrieve costs for stablecoins like USDT, meme cash like Shiba Inu, and every little thing in between.

Right here’s an instance of what it seems like when calling the endpoint:

import fetch from 'node-fetch';

const choices = {
 methodology: 'POST',
 headers: {
   settle for: 'software/json',
   'content-type': 'software/json'
 },
 physique: JSON.stringify({
   "jsonrpc": "2.0",
   "id": 1,
   "methodology": "eth_getTokenPrice",
   "params": [
     {
       "address": "0xdAC17F958D2ee523a2206206994597C13D831ec7",
       "include": "percent_change"
     }
   ]
 })
};

fetch(YOUR_NODE_URL, choices)
 .then(response => response.json())
 .then(response => console.log(response))
 .catch(err => console.error(err));

In return for operating the script above, you obtain each the USD and native worth of the desired token. Moreover, the response is enriched with worth adjustments over time, a token brand, token decimals, and extra. Right here’s an instance of what the response seems like:

{
  //...
  outcome: {
    tokenName: 'Tether USD',
    tokenSymbol: 'USDT',
    tokenLogo: 'https://brand.builders.moralis.com/0x1_0xdac17f958d2ee523a2206206994597c13d831ec7_3282f332c2ac2948929f01fe7d921c51',
    tokenDecimals: '6',
    nativePrice: {
      worth: '375760131462618',
      decimals: 18,
      identify: 'Ether',
      image: 'ETH',
      deal with: '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2'
    },
    usdPrice: 1.0000402502911871,
    usdPriceFormatted: '1.000040250291187229',
    '24hrPercentChange': '-0.04543241491797881',
    exchangeName: 'Uniswap v3',
    exchangeAddress: '0x1F98431c8aD98523631AE4a59f267346ea31F984',
    tokenAddress: '0xdac17f958d2ee523a2206206994597c13d831ec7',
    priceLastChangedAtBlock: '20534105',
    possibleSpam: false,
    verifiedContract: true,
    pairAddress: '0xc7bbec68d12a0d1830360f8ec58fa599ba1b0e9b',
    pairTotalLiquidityUsd: '7148031.13'
  }
}

eth_getTokenMetadata

With eth_getTokenMetadata, you’ll be able to seamlessly fetch the metadata of an ERC-20 token. Furthermore, this endpoint covers every little thing from meme cash like Shiba Inu to stablecoins like USDC. 

Right here’s an instance of the endpoint in motion: 

import fetch from 'node-fetch';

const choices = {
 methodology: 'POST',
 headers: {
   settle for: 'software/json',
   'content-type': 'software/json'
 },
 physique: JSON.stringify({
   "jsonrpc": "2.0",
   "id": 1,
   "methodology": "eth_getTokenMetadata",
   "params": [
     {
       "addresses": [
         "0xdac17f958d2ee523a2206206994597c13d831ec7"
       ]
     }
   ]
 })
};

fetch('YOUR_NODE_URL', choices)
 .then(response => response.json())
 .then(response => console.log(response))
 .catch(err => console.error(err));

In return for calling the endpoint above, you get the metadata of the desired token. This may embody the token identify, image, decimals, logos, complete provide, and far more. Right here’s a pattern response: 

{
  //...
  outcome: [
    {
      address: '0xdac17f958d2ee523a2206206994597c13d831ec7',
      address_label: 'Tether USD (USDT)',
      name: 'Tether USD',
      symbol: 'USDT',
      decimals: '6',
      logo: 'https://logo.developers.moralis.com/0x1_0xdac17f958d2ee523a2206206994597c13d831ec7_3282f332c2ac2948929f01fe7d921c51',
      logo_hash: 'ee7aa2cdf100649a3521a082116258e862e6971261a39b5cd4e4354fcccbc54d',
      thumbnail: 'https://logo.developers.moralis.com/0x1_0xdac17f958d2ee523a2206206994597c13d831ec7_3282f332c2ac2948929f01fe7d921c51',
      total_supply: '51986637760874451',
      total_supply_formatted: '51986637760.874451',
      fully_diluted_valuation: '51930247101.87',
      block_number: '20519335',
      validated: 1,
      created_at: '2017-11-28T00:41:21.000Z',
      possible_spam: false,
      verified_contract: true,
      categories: [
        'Asset-backed Tokens',
        'Exchange-Issued Asset Tokens',
        'Platform-Based Utility Tokens',
        'Stablecoins'
      ],
      hyperlinks: {
        twitter: 'https://twitter.com/Tether_to',
        web site: 'https://tether.to/',
        fb: 'https://www.fb.com/tether.to',
        reddit: 'https://www.reddit.com'
      }
    }
  ]
}

eth_getNFTBalances

Utilizing eth_geNFTBalances, you’ll be able to effortlessly retrieve a listing of NFTs owned by a particular pockets deal with.

Right here’s an instance script exhibiting name this endpoint:

import fetch from 'node-fetch';

const choices = {
 methodology: 'POST',
 headers: {
   settle for: 'software/json',
   'content-type': 'software/json'
 },
 physique: JSON.stringify({
   "jsonrpc": "2.0",
   "id": 1,
   "methodology": "eth_getNFTBalances",
   "params": [
     {
       "address": "0x3F22FC93143790a1bd11C37C65a0a0f7e7875eA2",
       "limit": 10,
     }
   ]
 })
};

fetch('YOUR_NODE_URL', choices)
 .then(response => response.json())
 .then(response => console.log(response.outcome, null, 2))
 .catch(err => console.error(err));

In return, you’ll get a listing of all NFTs owned by the desired deal with. Furthermore, every object is enriched with token addresses, in depth metadata, spam indicators, assortment logos, and extra. Right here’s an instance of what it would appear to be:

{
  //...
    outcome: [
      {
        amount: '1',
        token_id: '8545',
        token_address: '0xbd3531da5cf5857e7cfaa92426877b022e612cf8',
        contract_type: 'ERC721',
        owner_of: '0x3f22fc93143790a1bd11c37c65a0a0f7e7875ea2',
        last_metadata_sync: '2024-08-14T19:47:37.128Z',
        last_token_uri_sync: '2024-08-14T19:47:32.019Z',
        metadata: '{"attributes":[{"trait_type":"Background","value":"Red"},{"trait_type":"Skin","value":"Normal"},{"trait_type":"Body","value":"Shirt Red"},{"trait_type":"Face","value":"Beard"},{"trait_type":"Head","value":"Mohawk Green"}],"description":"A group 8888 Cute Chubby Pudgy Penquins sliding round on the freezing ETH blockchain.","picture":"ipfs://QmNf1UsmdGaMbpatQ6toXSkzDpizaGmC9zfunCyoz1enD5/penguin/8545.png","identify":"Pudgy Penguin #8545"}',
        block_number: '18777311',
        block_number_minted: null,
        identify: 'PudgyPenguins',
        image: 'PPG',
        token_hash: '5e8faae3c07cd3bdb8bfa817e5a14a1b',
        token_uri: 'https://ipfs.builders.moralis.com:2053/ipfs/bafybeibc5sgo2plmjkq2tzmhrn54bk3crhnc23zd2msg4ea7a4pxrkgfna/8545',
        minter_address: null,
        verified_collection: true,
        possible_spam: false,
        collection_logo: 'https://i.seadn.io/gae/yNi-XdGxsgQCPpqSio4o31ygAV6wURdIdInWRcFIl46UjUQ1eV7BEndGe8L661OoG-clRi7EgInLX4LPu9Jfw4fq0bnVYHqg7RFi?w=500&auto=format',
        collection_banner_image: 'https://i.seadn.io/gcs/information/8a26e3de0f309089cbb1e5ab969fc0bc.png?w=500&auto=format'
      },
      //...
    ]
  }
}

eth_getNFTCollections

Get a listing of all of the NFT collections owned by a particular pockets, together with assortment particulars and metadata. 

Right here’s the endpoint in motion: 

import fetch from 'node-fetch';

const choices = {
 methodology: 'POST',
 headers: {
   settle for: 'software/json',
   'content-type': 'software/json'
 },
 physique: JSON.stringify({
   "jsonrpc": "2.0",
   "id": 1,
   "methodology": "eth_getNFTCollections",
   "params": [
       {
       "address": "0x3F22FC93143790a1bd11C37C65a0a0f7e7875eA2",
       "limit": 10
     }
   ]
 })
};

fetch('YOUR_NODE_URL', choices)
 .then(response => response.json())
 .then(response => console.log(response))
 .catch(err => console.error(err));

Calling the endpoint above supplies an array of all collections owned by the desired pockets. Every object is enriched with information, together with a reputation, assortment brand, assortment banner, spam indicators, and extra. Right here’s an instance of what it would appear to be: 

{
  //...
    outcome: [
      {
        token_address: '0xbd3531da5cf5857e7cfaa92426877b022e612cf8',
        possible_spam: false,
        contract_type: 'ERC721',
        name: 'PudgyPenguins',
        symbol: 'PPG',
        verified_collection: true,
        collection_logo: 'https://i.seadn.io/gae/yNi-XdGxsgQCPpqSio4o31ygAV6wURdIdInWRcFIl46UjUQ1eV7BEndGe8L661OoG-clRi7EgInLX4LPu9Jfw4fq0bnVYHqg7RFi?w=500&auto=format',
        collection_banner_image: 'https://i.seadn.io/gcs/files/8a26e3de0f309089cbb1e5ab969fc0bc.png?w=500&auto=format'
    },
      //...
    ]
  }
}

Moralis Overview – Exploring RPC Nodes & Web3 APIs

Moralis stands out because the business’s #1 crypto information supplier. Our suite of improvement instruments contains top-tier RPC nodes and several other use case-specific APIs, such because the Pockets API, Token API, Streams API, and extra. With Moralis, you get all crypto information in a single place.

What makes Moralis distinctive?

• One Name – All of the Information: Our APIs and Prolonged RPC Strategies are designed with the end result in thoughts, providing you with extra information with fewer calls. Fetch ERC-20 token balances, a pockets’s full historical past, token costs, and extra with single requests.

• Multi-Chain Help: Our nodes and Web3 APIs assist all main chains, together with Ethereum, Polygon, BSC, Optimism, Base, and others. Get pleasure from full function parity throughout our supported networks, so that you solely want one information supplier for all chains.

• Enterprise-grade Safety: Moralis is SOC 2 Kind 2 licensed, demonstrating our dedication to safety and reliability.

Let’s dive deeper into our merchandise to spotlight the advantages of Moralis!

RPC Nodes

Moralis is a number one node supplier, supporting over 30 blockchains, together with Ethereum, Base, and Polygon. With our user-friendly interface, you’ll be able to effortlessly combine nodes into your tasks on the click on of some buttons. 

What units our nodes aside?

• Velocity: Business-leading response instances as little as 70 ms.
• Reliability: 99.9% uptime, making certain fixed information availability.
• Safety: SOC 2 Kind 2 licensed for enterprise-grade safety.

Uncover extra on our RPC nodes web page!

Web3 APIs 

Moralis’ Web3 API suite consists of a number of distinguished interfaces. Listed here are 5 of them:

• Pockets API: A number one device for constructing wallets and integrating pockets performance into dapps. Retrieve any pockets’s historical past, token balances, internet price, profitability, and extra with single traces of code.

• Token API: Entry ERC-20 information with the Token API. Get balances, costs, metadata, and extra.

• NFT API: Ideally suited for constructing NFT marketplaces, Web3 video games, and different NFT-related platforms. Fetch NFT balances, metadata, costs, and extra with minimal code.

• Value API: Get real-time ERC-20 costs, NFT flooring costs, OHLCV costs, and extra. Combine worth information seamlessly into your tasks.

• Streams API: Arrange Web3 information pipelines for customized occasions with just some clicks. Excellent for real-time alerts, populating databases with present occasions, and incorporating stay insights into your tasks.

To be taught extra about our interfaces, go to our Web3 API web page!

Abstract: The right way to Get ERC-20 Token Balances with RPC Nodes

It doesn’t matter should you’re constructing a Web3 pockets, portfolio tracker, tax device, or different related platforms – chances are high, you want entry to the ERC-20 token balances of your customers. Nonetheless, querying ERC-20 token balances from RPC nodes has historically been a bothersome and time-consuming endeavor. Doing so requires many requests utilizing strategies like eth_getBalance and necessitates stitching collectively quite a lot of information your self. Happily, there’s now a extra streamlined various: Moralis’ Prolonged RPC Strategies.

Our Prolonged RPC Strategies make it attainable to question decoded and enriched information seamlessly utilizing RPC-style requests. With this function, you solely want a single name to get ERC-20 token balances, transaction histories, token costs, and extra utilizing RPC nodes.

To spotlight the accessibility of our Prolonged RPC Strategies, right here’s the eth_getTokenBalances endpoint in motion:

import fetch from 'node-fetch';

const choices = {
 methodology: 'POST',
 headers: {
   settle for: 'software/json',
   'content-type': 'software/json'
 },
 physique: JSON.stringify({
   "jsonrpc": "2.0",
   "id": 1,
   "methodology": "eth_getTokenBalances",
   "params": [
     {
       "address": "0xcB1C1FdE09f811B294172696404e88E658659905",
     }
   ]
 })
};

fetch('YOUR_NODE_URL', choices)
 .then(response => response.json())
 .then(response => console.log(response))
 .catch(err => console.error(err));

In return for calling the script above, you’ll get the ERC-20 token balances of the desired deal with, enriched with token logos, spam indicators, and far more. Right here’s a pattern response:

{
  //...
  outcome: [
    {
      token_address: '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2',
      name: 'Wrapped Ether',
      symbol: 'WETH',
      decimals: 18,
      logo: 'https://logo.developers.moralis.com/0x1_0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2_a578c5277503e547a072ae32517254ca',
      thumbnail: 'https://logo.developers.moralis.com/0x1_0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2_a578c5277503e547a072ae32517254ca',
      balance: '10000000000000000',
      possible_spam: false,
      verified_contract: true,
      total_supply: '2746607222348759943423350',
      total_supply_formatted: '2746607.22234875994342335',
      percentage_relative_to_total_supply: 3.64085549569e-7
    },
    //...
  ]
}

That’s it! Fetching ERC-20 token balances with RPC nodes doesn’t must be more difficult than this when utilizing Moralis.

When you favored this tutorial on get ERC-20 token balances with RPC nodes, take into account trying out extra Moralis content material. As an illustration, learn to get DeFi protocol data or dive into our Alchemy Custom Webhooks information.

Lastly, if you wish to get ERC-20 token balances with RPC nodes your self, don’t overlook to enroll with Moralis. You possibly can create an account freed from cost and get fast entry to all our premier improvement instruments!