Every transaction on a blockchain (transfers, swaps, etc.) requires a network fee, known as Gas, which must be paid in the chain’s native token (such as ETH). Many users hold assets like USDC and USDT in their wallets but cannot make transfers because they have no ETH.
Starting from OneKey version 6.5.0, OneKey introduces Gas Sponsorship: for eligible transactions, the Gas fee is covered by OneKey as a subsidy. Without preparing any Gas in advance, you can complete transfers and trade tokenized US stocks and perpetual contracts.
Which scenarios are supported?
• Send: token transfers on Ethereum mainnet and Arbitrum
• Swap: swaps made through centralized channels
• Perps deposit: USDC deposits on Arbitrum
More networks and scenarios are on the way — stay tuned.
How to use it?
1. Update the OneKey App to version 6.5.0 or above
2. Initiate a supported transaction (e.g., sending USDC on Ethereum)
3. Select the Gas Sponsorship option among the network fee options
4. Confirm and sign, and the transaction completes — no ETH needed in your wallet
Rules
• Each user gets 10 sponsored transactions per day, automatically reset the next day
• The subsidy covers the network fee of a single transaction; for transactions beyond the subsidy’s coverage, you will be prompted to pay the standard network fee yourself
• Sponsorship opportunities are limited; if currently unavailable, you can pay the standard network fee yourself
• Whether Gas Sponsorship is available to you depends on eligibility, service availability, and fair-use checks. If unavailable, the standard network fee will be shown before signing.
FAQ
Q: Why did my wallet receive a small amount of Gas tokens?
A: This is how Gas Sponsorship normally works: OneKey first transfers the Gas needed for the transaction into your wallet, then completes your transaction. You will see two transaction records on the block explorer — nothing to worry about.
Q: There are some Gas tokens left in my wallet after the transaction. Do I need to return them?
A: No. The subsidy is issued based on an estimated upper limit, and any small amount left over after actual consumption is yours to keep.
Q: Why do I sometimes not see the Gas Sponsorship option?
A: You may have used up today’s sponsored transactions, or the current network/scenario is not supported yet. You can pay the standard network fee yourself.