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How to use it

// yarn add @tatumio/tatum
import { TatumSDK, BinanceSmartChain, Network } from '@tatumio/tatum'
const tatum = await TatumSDK.init<BinanceSmartChain>({network: Network.BINANCE_SMART_CHAIN})
const balance = await tatum.rpc.getBalance('0x35a84E6896Aa5Ba047221aC405afaF1977A75109')
await tatum.destroy() // Destroy Tatum SDK - needed for stopping background jobs


The eth_getBalance method is an JSON-RPC method that allows you to retrieve the balance of a specified address. This method can be used to query the balance of any address, whether it is a contract or an externally owned account (EOA). A common use case for this method is to display the current balance of a user's account in a wallet application or a decentralized application (DApp).


The method requires two parameters:
  1. 1.
    address (required): The address of the account or contract whose balance you want to query.
    • Example: "0x35a84E6896Aa5Ba047221aC405afaF1977A75109"
  2. 2.
    blockParameter (optional): The block number or block identifier to specify the point in time for which you want to query the balance.
    • Example: "latest" or "0x1"

Transaction Details

For the purpose of this documentation, we'll also describe the transactions field of a full transaction object. The eth_getBalance method does not return transaction details, but we provide this information for completeness.
A full transaction object includes the following fields:
  • hash: The transaction hash.
  • nonce: The number of transactions made by the sender prior to this one.
  • blockHash: The hash of the block in which the transaction was included.
  • blockNumber: The block number in which the transaction was included.
  • transactionIndex: The index of the transaction in the block.
  • from: The sender's address.
  • to: The recipient's address (or null for contract creation transactions).
  • value: The value transferred, in wei.
  • gasPrice: The gas price provided by the sender, in wei.
  • gas: The maximum gas allowed for the transaction.
  • input: The data sent with the transaction (typically for contract interaction).
  • v, r, s: The raw signature values of the transaction.

Return Object

The method returns a single field:
  • result: The Flare balance of the specified address in wei, as a hexadecimal string.
    • Example: "0x1a2e1a", which corresponds to 1,726,666 wei.

JSON-RPC Request and Response Examples


"jsonrpc": "2.0",
"id": 1,
"method": "eth_getBalance",
"params": [


"jsonrpc": "2.0",
"id": 1,
"result": "0x1a2e1a"
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