Can a Zero-Gas Transaction Be Processed on Ethereum?

No, a zero-Gas transaction cannot be processed on Ethereum. Unlike Bitcoin, where zero-fee is technically possible but economically unlikely, Ethereum's protocol requires a Gas fee to cover the computational cost and compensate the validator.

The transaction will be rejected by the network if the Gas Price is set to zero, as the Base Fee must be paid.

Can a Zero-Fee Transaction Be Rejected by a Mining Pool’s Software?
How Is the Total Transaction Fee Calculated Using Gas and Gas Price?
What Happens to a Trade If It Is Rejected for Clearing and Novation Does Not Occur?
How Does a Higher Gas Fee Ensure a Transaction Is Executed First by a Validator?
What Is the Role of a ‘Gas Fee’ in a Smart Contract Platform?
Why Is the Fee Still Consumed If the Transaction Fails Due to Gas Limit?
What Is the Difference between Gas Limit and Gas Price?
How Does the “Base Fee” and “Priority Fee” System Work under EIP-1559?