Polygon Mumbai support ending April 13th - migrate to Amoy

Polygon has informed us that they will deprecate Mumbai on April 13th, 2024. We are planning on keeping our testnet nodes for Polygon running until this date.

However, in the past we have seen extreme instability in networks leading up to deprecation. While we will do our best to keep it running, we cannot guarantee that this network will be usable until April 13.

It is in your best interest to migrate to Amoy immediately. If you try to send requests to these nodes after Alchemy support ends, your requests will fail with a DNS resolution error.

Required actions for developers

To ensure you’re able to continue testing seamlessly, you will need to migrate to Amoy before April 13.

Polygon Amoy is the sustainable path forward for web3 developers and we encourage devs to use it for any testing and development needs.

Polygon Amoy offers many benefits over Mumbai, such as improved scalability and lower gas fees — all attributes we think will ultimately lead to better application development.

Required steps to migrate to Polygon amoy

Follow these 5 steps to migrate from Mumbai to Amoy:

1. Create a new app from the Alchemy dashboard on the Polygon Amoy network.
2. Get free Amoy tokens from Alchemy's public Amoy Faucet which drips up to 1 Amoy MATIC per day.
3. Change your API\_URL to your Amoy RPC URL: https://polygon-amoy.g.alchemy.com/v2/\[YOUR-API-KEY\]
4. Deploy your test contract to Amoy.
5. Change your tests to use the new contract.

For more detailed instructions, please reference the "How to Deploy a Smart Contract to the Sepolia Testnet" tutorial on our docs.

A note on other chains:

Goerli deprecation dates for other chains are up to date on this blog post.