Alchemy ended support for Polygon zkEVM Mainnet (polygonzkevm-mainnet) and the Polygon zkEVM Cardona testnet (polygonzkevm-cardona) on July 1, 2026. Requests to these endpoints are no longer supported.
Alchemy ended support because Polygon Labs shut down the Polygon zkEVM network on July 1, 2026. Both the mainnet and the Cardona testnet were sunset by Polygon Labs.
There is no migration path for Polygon zkEVM, as the network itself was shut down. If you are building on a Layer 2, explore Alchemy's other supported chains for an alternative network that fits your needs.
If you have any questions or need assistance, contact us at [email protected] or open a ticket in the Alchemy Dashboard.