Starting today, Sepolia can be used for all EVM chains in staging. Review this announcement to learn about how to use it, as well as the deprecation timeline for Goerli.

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Using Sepolia for test collections

• The chain identifiers for sepolia testnets are arbitrum-sepolia (for both Arbitrum One and Nova), base-sepolia, ethereum-sepolia, optimism-sepolia, and zora-sepolia.
• You can use them in all APIs that support a chain selector, including Minting APIs (e.g. Create NFT Collection) and wallets (e.g. Get NFTs from Wallet).
• You can import Ethereum Sepolia contracts for payments or minting from the console UI today. All other chains are coming on Tue 6th of February.

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Goerli deprecation: Phase 1 (Feb 6 2024)

• Starting on Tue 6th of Feb, the following chain identifiers will default to sepolia if used in Staging: arbitrum, arbitrumnova, base, ethereum, optimism, zora.
• The recommended approach is to specify the full testnet name, for easier migration in future testnet deprecations.
• It will no longer be possible to import new Goerli collections for payments.
• You will still be able to use previously created/registered collections in Goerli.

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Goerli deprecation: Phase 2 (Feb 9 2024)

• Starting on Friday 9th of Feb, Goerli will stop working for any Crossmint product.
• Existing collections in Goerli will be removed, due to the inability to fetch NFT and contract metadata reliably as the chains are shut down.

If you have further questions regarding this, we are here to help. Contact Crossmint Support.