Upcoming Support for Sepolia Test Networks

We're expanding support for USDC and EURC on a number of Sepolia test networks to better serve developers building with Circle’s stablecoin protocols and platform services.

Please note that Goerli test networks are expected to no longer be actively maintained by the community moving forward. We encourage developers to migrate to Sepolia at your earliest convenience.

Planned rollout for January 8 - 19, 2024

• USDC
  • Launches on Arbitrum Sepolia
  • Launches on Base Sepolia
  • Launches on Ethereum Sepolia
  • Launches on OP Sepolia
    
    
• EURC
  • Launches on Ethereum Sepolia
    
    
• CCTP
  • Launches on Arbitrum Sepolia
  • Launches on Base Sepolia
  • Launches on Ethereum Sepolia
  • Launches on OP Sepolia
    
    
• Circle Mint and Faucet
  • Support USDC on Arbitrum Sepolia
  • Support USDC on Base Sepolia
  • Support USDC on Ethereum Sepolia
  • Support EURC on Ethereum Sepolia
  • Support USDC on OP Sepolia
    
    
• Programmable Wallets and Smart Contract Platform
  • Support Ethereum Sepolia

We expect 1-2 hours of downtime for Circle Mint Sandbox APIs during the migration to Sepolia for each USDC and EURC testnet deployment. Please refer to BuildOnCircle on X and our Discord for daily updates.

What is changing?

• USDC will have new Sepolia testnet addresses for Arbitrum, Base, Ethereum, and OP. 
• EURC will have new Sepolia testnet addresses for Ethereum.
• CCTP will have new Sepolia testnet addresses for Arbitrum, Base, Ethereum, and OP. The attestation API will no longer support Goerli once the migration takes place. 
• Faucet will no longer support USDC and EURC on Goerli test networks. Instead, you’ll be able to select and receive USDC and EURC on Sepolia test networks.
• Circle Mint deposit addresses created on Goerli will be cleared. Sending USDC or EURC to cleared addresses will result in lost funds in Circle Mint sandbox. Any historical transfers and existing balances will remain the same.
• Programmable Wallets and Smart Contract Platform will add support for Ethereum Sepolia on January 10, and deprecate support for Ethereum Goerli by the end of January 2024. At that time, APIs will no longer reflect data from Ethereum Goerli.

If you have questions about our Sepolia rollout or want to learn more about building with USDC and EURC, join the conversation in our Discord – or check out our self-serve developer portal to get started.