# Fees & Monetizations

Mono Protocol provides multiple revenue streams and monetization options for applications building on the platform.

<br>

| Category     | Fee Type                                   | Who Pays                 | Description                                                                                                                                    |
| ------------ | ------------------------------------------ | ------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------- |
| Gas Fees     | Cross-Chain Source or same chain execution | Application => Paymaster | The app pays for the inclusion to the paymaster service in USD                                                                                 |
| Gas Fees     | Cross-Chain Destination                    | User=>Solver             | This fee is included in the quote the solver provides for execution                                                                            |
| Monetization | Swaps & Transfers                          | User=>App                | App configures the fees and collects them to a dedicated address. The fee is paid in the input token and delivered with every user transaction |
| Monetization | Function Calls                             | User=>App                | App calculates the fee it is willing to take and encodes this into the desired calldata to be executed as a transfer                           |


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