# Zyfi (Paymaster)

Zyfi is a Paymaster-as-a-Service that focuses on flexibility and ease of integration. It was created as a way to accelerate the adoption of paymasters in the zkSync ecosystem.

DApps can either propose to their users to pay with any ERC-20 traded on zkSync (currently more than 80), or decide to sponsor part or all of the transaction gas cost with their own custom logic.

All is powered by a Paymaster [API](https://docs.zyfi.org/integration-guide/quick-start) that abstracts complexities away from developers, so that they can focus on building their product.

Website: <https://docs.zyfi.org/>

### Deployment status

* :white\_check\_mark: **Cronos zkEVM Mainnet (Chain-id : `388` )**

Deployment completed. The docs are the same for all chains. Use the Cronos zkEVM chain ID (388).

* :white\_check\_mark: **Cronos zkEVM Sepolia Testnet (Chain-id : `282` )**

Deployment completed. The docs are the same for all chains. Use the Cronos zkEVM testnet chain ID (282).


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