Base Chain Token Transfers API

In this section we'll have a look at some examples using the Base Transfers API.

This Base API is part of our Early Access Program (EAP), which is intended for evaluation purposes.

This program allows you to test the data and its integration into your applications before full-scale implementation. Read more here

Subscribe to Recent Whale Transactions of a particular currency

The subscription query below fetches the whale transactions on the Base network. We have used USDC address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913. You can find the query here

subscription {
  EVM(network: base) {
    Transfers(
      where: {Transfer: {Currency: {SmartContract: {is: "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"}}, Amount: {ge: "10000"}}}
    ) {
      Transaction {
        From
        Hash
      }
      Transfer {
        Amount
        Sender
        Receiver
        Currency {
          SmartContract
          Symbol
          Name
          Fungible
          Native
        }
        Id
      }
    }
  }
}

Sender is a particular address

This websocket retrieves transfers where the sender is a particular address 0x3304E22DDaa22bCdC5fCa2269b418046aE7b566A. For this subscription query we use where keyword and in that we specify {Transfer: {Sender: {is: "0x3304E22DDaa22bCdC5fCa2269b418046aE7b566A"}}} to get the desired data. You can find the query here

subscription {
  EVM(network: base) {
    Transfers(
      where: {Transfer: {Sender: {is: "0x3304E22DDaa22bCdC5fCa2269b418046aE7b566A"}}}
    ) {
      Transfer {
        Amount
        AmountInUSD
        Currency {
          Name
          SmartContract
          Native
          Symbol
          Fungible
        }
        Receiver
        Sender
      }
      Transaction {
        Hash
      }
    }
  }
}

Subscribe to the latest NFT token transfers on Base Chain

Let's see an example of NFT token transfers using GraphQL Subscription (Webhook). In the following NFT Token Transfers API, we will be subscribing to all NFT token transfers on Base network. You can run the query here

subscription {
  EVM(network: base) {
    Transfers(where: {Transfer: {Currency: {Fungible: false}}}) {
      Transfer {
        Amount
        AmountInUSD
        Currency {
          Name
          SmartContract
          Symbol
          Fungible
          HasURI
          Decimals
        }
        URI
        Sender
        Receiver
      }
      Transaction {
        Hash
      }
    }
  }
}