What is gas fee in Web3 and why is it needed for crypto donations

If a person comes to Web3 from the familiar Web2 world, one of the first unclear terms often becomes gas fee. At first glance, it seems like an unnecessary commission, but in reality, gas fee is a fundamental element of how blockchain networks operate.

Gas fee is the payment for actions on the blockchain. It can be charged when sending tokens, making a donation, confirming a transaction, interacting with a smart contract, or any other action within the network. These funds are received by validators — network participants who confirm operations and help maintain its functionality.

Gas fee is needed not just as a technical formality. It pays for the verification and recording of transactions on the blockchain, protects the network from spam, because each action has a cost, and also helps the network determine the priority of processing operations. Usually, transactions with higher fees can be processed faster, especially if the network is congested.

The amount of gas fee can vary. The fee increases when there are many transactions in the network at the same time, when the action is technically more complex than a regular transfer, or when the user is operating in a network where fees are inherently higher. In different blockchain networks, the cost of operations can differ significantly: in some, it is measured in cents, while in others, it becomes noticeable for the user.

There are several ways to pay less. You can make transactions during quieter hours when the network is not congested. You can also use L2 networks, such as Arbitrum, where fees are often lower than in the main Ethereum network. Additionally, the fewer unnecessary actions a user takes, the less they spend on fees.

For GrantiX users, it is important to understand one more practical nuance. If a transaction occurs in the Arbitrum network, the fee is usually paid in ETH specifically in the Arbitrum network. Even if the user makes a donation in USDT, USDC, or GRANT, a small reserve of ETH for the fee may still be needed.

Gas fee is not an obstacle, but a part of the Web3 mechanics. When a user understands why it is needed and how to work with it, crypto donations become clearer, and interaction with blockchain platforms becomes calmer and safer.