Frequently Asked Questions
General
SillySwap is a privacy-focused trading interface for Hyperliquid. It uses Silhouette to shield your trades from on-chain observers.
- Trading: Silhouette's live spot rate, fetched from the Silhouette API. It inherits Hyperliquid's spot fees with Silhouette's aggregated HYPE staking discount applied. The exact rate is shown in the swap review screen before every swap.
- Deposits / Withdrawals: Free (you only pay Arbitrum gas on deposits)
See Fees & Limits for a full breakdown.
SillySwap supports 15 tokens: USDC, HYPE, USDH, BTC, ETH, SOL, ZEC, USDT, FART, PUMP, USDe, PURR, XAUT, KNTQ, and KHYPE. You can swap between any combination - direct markets are used when available, otherwise SillySwap routes through USDC or USDH automatically.
See the full list on the How to Swap page.
When there's no direct market between two tokens, SillySwap automatically routes your swap through an intermediary token in two legs. This happens behind the scenes - you just pick your tokens and swap. The route is shown in the swap review screen.
Multi-hop swaps (those routed through an intermediary) have compound slippage. Each leg of the swap applies slippage independently, so the total tolerance is slightly higher than for a direct swap. For example, 0.5% slippage across 2 hops results in approximately 1.0% total. The app calculates and displays this automatically.
Each hop pays Silhouette's live spot rate. For a 2-hop swap the per-hop fee compounds across both legs - if the live rate is r, the total is 1 - (1 - r)^2, which is roughly 2r for any reasonable rate. SillySwap fetches the live rate from Silhouette and shows you the per-hop and compound totals in the swap review screen before you confirm.
Swapping
Swaps happen inside Silhouette's shielded pool. You need funds in the pool before you can trade.
Milliseconds. Swaps execute as limit orders on Hyperliquid and fill almost instantly.
$10 USD (enforced by Hyperliquid). Orders below $10 are rejected.
Privacy & Security
Yes. Trades inside Silhouette's pool are not visible on-chain. Only deposits and withdrawals are public.
SillySwap never has access to your private key. You sign messages with your wallet, but keys stay local.
Silhouette custodies your shielded funds. This is a trust-based system that enables privacy.
Troubleshooting
For detailed solutions, see the full Troubleshooting guide.
Wait 1-2 minutes for confirmation. If still missing, check the transaction status in your wallet.
Market moved more than your slippage tolerance. Try again with higher slippage.
Your Silhouette session expires periodically for security. Click the sign-in prompt to re-authenticate - it's a gasless signature, no transaction fees. You'll need to re-sign roughly once per day.
App Features
SillySwap supports English, Spanish, and Chinese. The app automatically detects your browser language, or you can change it manually.
Yes! SillySwap is a Progressive Web App. See the full Install as App guide for step-by-step instructions on iOS, Android, and desktop.
Contact
- Twitter: @sillyswap_xyz