On-chain sends need the network’s native asset to pay gas, and a fee spike can leave a transaction stuck. This guide explains how gas funding works and what to do when a transaction won’t broadcast.
Funding gas
Every on-chain send needs the network’s native gas asset in the sending wallet—ETH on Ethereum, SOL on Solana, APT on Aptos, DOT on Polkadot, and so on. Gas is per-wallet: there’s no shared gas pool today, so each wallet that sends needs its own native balance.
To avoid topping up every wallet by hand, the gas station can fund gas automatically for supported assets. See Gas station.
Keep a small buffer of the native gas asset in each wallet you send from, so operations aren’t blocked waiting on a gas top-up.
Transactions stuck broadcasting
The gas estimate is locked when you initiate an operation, not when it broadcasts. If network fees rise before quorum is met, the operation can stick in the Broadcasting status because the locked estimate no longer covers the fee.
When that happens, the platform keeps retrying the broadcast—if network fees fall back within the locked estimate, the operation completes on its own. If you’d rather not wait, cancel the operation and resubmit it so a fresh gas estimate is applied. 
