Migrate from Mumbai to Amoy

We're expand ing support for Amoy to better serve developers building with Circle’s stablecoin protocols and platform services. We encourage all developers to migrate to Mumbai before April 11, 2024. To learn more, see the Migrate from Mumbai to Amoy blog.

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Please note that Polygon PoS Mumbai testnet is expected to no longer be actively maintained by the community moving forward.

USDC

Circle will no longer maintain the USDC token contract on the Polygon PoS Mumbai testnet, effective March 27, 2024. To ensure uninterrupted service, please update the contract addresses from Mumbai to Amoy using the following smart contract addresses.

USDC planned launch dates:

• March 27, 2024: Polygon PoS Amoy

Note: Launch dates are tentative and subject to change. If you have questions or want to learn more about USDC, join the conversation in our Discord.

CCTP

CCTP support will be discontinued on the Polygon PoS Mumbai testnet effective March 27, 2024. While the CCTP smart contracts will still be available on Mumbai, the attestation API will cease to function, rendering CCTP unusable on Mumbai.

Please update your project to utilize the following Polygon PoS Amoy contracts to ensure uninterrupted functionality. It is important to note that apart from the lack of Mumbai support, there are no changes to the attestation API, meaning that no attestation API implementation changes are required on your end.

CCTP planned launched dates:

• March 27, 2024: Polygon PoS Amoy

Note: Launch dates are tentative and subject to change. If you have questions or want to learn more about CCTP, join the conversation in our Discord.

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