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How to set custom network fees?

What is a network fee?

Network fee is also known as a gas fee. Network fee is a blockchain transaction fee that is paid to miners/validators in a blockchain network to incentivize them to verify transactions and maintain network security. Each transaction on blockchain requires a network fee.

The network fee you pay will vary according to the network you use. For example, on the Polygon blockchain, the network fees are paid in MATIC. The higher the network fee, the transaction will be packaged by miners/verifiers first.


The network fee is charged by the transfer network that you choose, and MPCVault does not charge any fees.

How to change the network fee when sending transactions?

MPCVault will automatically assist you in obtaining the optimal network fee in real-time when making a transfer. Additionally, MPCVault also provides support for customizing the network fee.

Supported networks

  • Ethereum
  • Ethereum (Goerli Testnet)
  • Polygon
  • BNB Smart Chain
  • Optimism
  • Arbitrum
  • Avalanche C-Chain
  • Base
  • Bitcoin
  • Aptos
  • Sui

How to setup?

Taking the EVM chain as an example, you have the flexibility to adjust the relevant parameters in order to achieve your desired outcome.

  1. Create a transaction. Open your wallet and click on " Send ". Input the recipient's address and the amount.

  2. Click " Custom network fee " to manually adjust the network fee to the desired level.

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How to reset the gas fee during the signing process?

If you discover an unreasonable gas fee during signing, utilize this feature to adjust it accordingly.


Can only be set prior to signing; not allowed after signing.

Operation Steps:

  1. Open the MPCVault app on your mobile phone.

  2. Navigate to the signing requests page and select a signing request that requires your approval to view its details.

  3. Tap the "Advanced gas fee" button.

  4. Adjust the parameters on the "Advanced gas fee" page as needed.

  5. If a transaction simulation is available, review the re-simulated transaction details after updating the gas fee.

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