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This guide shows you how to retrieve the fee for a USDC transfer using the CCTP API. Fees vary based on the source and destination blockchains, and whether you use Fast Transfer or Standard Transfer.

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Prerequisites

Before you begin, ensure you have:
  • Installed cURL on your development machine

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Get the transfer fee

Call the GET /v2/burn/USDC/fees endpoint to retrieve the fees for transferring USDC between two blockchains. Request parameters
  • sourceDomainId: The domain ID of the source blockchain
  • destDomainId: The domain ID of the destination blockchain
Example request
Shell
curl --request GET \
  --url 'https://iris-api-sandbox.circle.com/v2/burn/USDC/fees/0/26' \
  --header 'Accept: application/json'
This example retrieves the fees for transferring USDC from Ethereum Sepolia (domain 0) to Arc Testnet (domain 26). Response 
[
  { "finalityThreshold": 1000, "minimumFee": 1 },
  { "finalityThreshold": 2000, "minimumFee": 0 }
]
Fee details:
  • Fees are specified in basis points (bps), for example, 1 = 0.01%.
  • Fast Transfer fees vary by route.
  • You specify the maximum fee you’re willing to pay when calling depositForBurn. The actual fee charged will not exceed this amount.