Whether you're new to the Sun Swap platform or a seasoned liquidity provider, this page covers the topics that matter most. You can also visit our info page for background on how the protocol works, or head back to the main app to start trading.
Sun Swap is a decentralized exchange protocol built on the TRON blockchain. It lets you swap any TRC20 token against another without an order book — prices are determined by an automated market maker (AMM) algorithm. No sign-up required. No central server holds your funds. You connect a TRON-compatible wallet and trade directly from your own address.
Open the Sun Swap app and connect your wallet — TronLink is the most common choice. Pick the token you want to sell in the top input, then pick the token you want to receive at the bottom. Enter an amount. The interface shows you the estimated output and the current exchange rate. Review the details, then click Swap. Your wallet will prompt you to sign the transaction. Done.
The whole process usually takes under thirty seconds once your wallet is connected. Gas costs on TRON are low compared to Ethereum, so small trades are practical.
Every swap on the Sun Swap platform incurs a 0.3% trading fee. That fee is not taken by the team — it goes entirely to the liquidity providers who deposited tokens into the relevant pool. The Sun Swap protocol itself takes no cut. You also pay a small TRON network fee (in TRX) for the on-chain transaction.
The Sun Swap smart contracts have been reviewed by security teams, and the protocol has been running in production for an extended period without a major exploit. That said, no smart contract is risk-free. Always double-check the token addresses you're interacting with — scam tokens that mimic legitimate ones do exist on every chain. The Sun Swap team does not custody your assets at any point; you remain in control of your private keys.
Slippage is the difference between the price you see when you submit a swap and the price at which it actually executes. Markets move between the moment you click and the moment the block confirms. Sun Swap lets you set a slippage tolerance — a percentage threshold. If the price moves more than that, the transaction reverts and you get your tokens back (minus the network fee).
A tolerance of 0.5% works for most liquid pairs. Tokens with thin liquidity or high volatility sometimes need 1–3%.
Anyone can become a market maker on Sun Swap. You deposit two tokens in equal value into a pool — say, TRX and USDT. In return you receive LP tokens representing your share. Every time someone trades through that pool, 0.3% of the trade value gets distributed proportionally among LP holders. When you're ready to exit, you burn your LP tokens and reclaim your share of the pool.
The catch is impermanent loss: if the price ratio of the two tokens shifts significantly while your funds are deposited, you may end up with less value than if you had simply held the tokens. It's real and worth understanding before committing large amounts.
When you add liquidity to an AMM pool, the contract automatically rebalances the ratio of the two tokens as prices change. If one token doubles in price, arbitrageurs trade into the pool until it's rebalanced. You end up holding more of the cheaper token and less of the expensive one compared to just holding both. The difference is called impermanent loss — it's "impermanent" because if prices return to the original ratio, the loss disappears. It becomes permanent only when you withdraw.
Not directly. Every Sun Swap pool requires you to supply both tokens in the pair at the current ratio. If you only hold one token, you'll need to swap half into the other first, then add liquidity. Some interfaces do this in a single step, but under the hood two transactions happen.
A few common causes: your slippage tolerance was set too low for a volatile token, you didn't have enough TRX to cover the network fee, the token has transfer restrictions (some tokens take a fee on transfer which throws off the expected amounts), or the pool had very low liquidity and the price moved too much between your submission and the block.
Check your wallet for the exact revert reason. Increasing slippage tolerance by 0.5–1% fixes most failures on standard tokens.
SUN is the governance and reward token of the SUN ecosystem, which includes the Sun Swap protocol. Holding SUN gives you a voice in protocol decisions through SUN DAO. The protocol also runs periodic SUN buyback-and-burn programs — a portion of fees or treasury funds is used to buy SUN on the open market and permanently remove it from circulation, reducing supply over time.
The safest approach is to get the contract address from the project's official website or official social accounts, then verify it on TronScan — TRON's block explorer. Never copy a contract address from a chat group or a random message. On the Sun Swap interface, you can paste a contract address directly into the token search. The platform will show you the token, but you should still cross-check the address independently before trading.
Good question. Centralized exchanges hold your funds — you trust their security and solvency. Sun Swap never holds anything; you trade wallet-to-wallet. There's no KYC, no withdrawal limits, and no risk of the exchange freezing your account. You also get access to tokens that aren't listed on major centralized platforms. The tradeoff is that you're responsible for your own keys and confirming you're interacting with the right contracts.
TronLink is the primary wallet supported — it's available as a browser extension and a mobile app. TokenPocket and some other TRON-compatible wallets also work with the Sun Swap interface. Make sure your wallet is set to the TRON mainnet before connecting. WalletConnect support may vary depending on the version of the interface you're using.
Sun Swap is a TRON-native protocol — it trades TRC20 tokens. It does not natively support ERC-20 tokens on Ethereum or BEP-20 tokens on BNB Chain. Some tokens exist on multiple chains (like USDT, which is on both TRON and Ethereum), but you'd need a bridge to move assets between chains before using them on Sun Swap. Always confirm the network before sending funds.
The Sun Swap Help Center on Zendesk has detailed guides covering wallet setup, common errors, and advanced features. The official Telegram community is active and a good place for quick questions. For anything security-related or if you believe you've found a vulnerability, use the Whistleblower channel linked in the app footer. And you can always revisit our info page or go back to the main app.