Frequently asked questions
Everything you need to know about swapping on ParaSwap, routed through the ParaSwap (Velora) DEX aggregator.
What is ParaSwap?
ParaSwap is an independent web interface for the ParaSwap (Velora) DEX aggregator. It finds the best on-chain price for any token swap by routing your order across 100+ liquidity sources on 7 EVM networks.
Is ParaSwap safe?
Yes. ParaSwap is a non-custodial protocol with multiple independent audits (ChainSecurity, Solidified) and tens of billions in lifetime trading volume. Your funds never leave your wallet — every swap is one transaction signed by you that routes through the audited ParaSwap router contracts.
How does the ParaSwap aggregator find the best price?
ParaSwap continuously scans 100+ DEXs and on-chain liquidity sources (Uniswap V2/V3, Curve, Balancer, PancakeSwap, Bancor, Kyber, DODO, 0x, Maker PSM and many more), then splits and routes your trade across the optimal combination of pools to maximize the destination amount you receive net of slippage and gas.
Which wallets are supported?
MetaMask, Coinbase Wallet, Rabby, Rainbow, Trust Wallet, Ledger, and any wallet that implements WalletConnect v2.
Which networks can I swap on?
Ethereum, Polygon, BNB Chain, Arbitrum, Optimism, Base and Avalanche. Switching networks is one click in the swap card.
What fees does ParaSwap charge?
A 2.00% service fee taken from the destination amount, plus the standard network gas fee for the chain you're trading on. The destination amount you see in the quote is what you actually receive — fees are already deducted.
Do you custody my funds at any point?
No. All trades execute directly from your wallet to the ParaSwap router smart contract and back. We never hold a private key, never route funds through our infrastructure, and have no ability to move your tokens.
What is slippage tolerance and what should I set it to?
Slippage tolerance is the maximum acceptable difference between the quoted price and the executed price. If the price moves more than this between the moment you sign and the moment your transaction lands on-chain, the swap reverts to protect you. 0.5% is fine for major pairs (USDC/ETH); use 1–3% for low-liquidity tokens.
Why are gas fees so high on Ethereum?
Gas on Ethereum mainnet is determined by network demand. ParaSwap optimizes execution to minimize gas usage, but for trades under a few hundred dollars you'll usually get better economics on an L2 like Arbitrum, Optimism or Base — same liquidity, ~10x cheaper gas.
Is this an official ParaSwap or Velora product?
No. ParaSwap is an independent third-party interface that uses the public ParaSwap (Velora) API. We are not affiliated with, endorsed by or operated by the ParaSwap / Velora team.
Can I see the route ParaSwap chose?
Yes — expand the rate row in the swap card to see the price impact, minimum received, slippage tolerance, service fee and network fee. The full splits across DEXs are available via the public ParaSwap API.
Why is my swap failing?
The most common reasons are insufficient gas (top up native token), token approval still mining (wait one block), or the price moved beyond your slippage tolerance (raise it slightly and try again). The toast at the bottom-right will tell you which one.
Still curious? Read about how ParaSwap works or jump back to the swap interface.