Jupiter is a decentralized liquidity aggregator for Solana, enabling users to swap tokens across different decentralized exchanges (DEXs) at the best available rates. It optimizes trades by routing transactions through multiple liquidity sources, ensuring the best price for token swaps. Additionally, Jupiter offers features like limit orders and an API for integrating swaps into other protocols

Jupiter does not charge any fees, the transaction fees that you see in the details, are the Solana fees (aka gas fees), and if you are swapping into any new token or through a new DEX / AMM, there will be a minor deposit fees / rent fees to create the ATA (Associated Token Accounts) which will be refunded when you close the account.

Yes, the displayed price includes liquidity provider fees and price impact

You can find the details in the Price info table.

• Slippage occurs because of changing market conditions between the moment the transaction is submitted and its verification.
• Your slippage rate is an important setting, it works as a protection. If the price falls below your slippage rate, then the transaction will fail in order to prevent you from getting less tokens than you want.
• You can adjust your slippage. By default, slippage is set to 0.5%, meaning if the price slips more than 0.5% of your quote, the trade will not be completed.
• Learn more about slippage and price impact

• This means that when Jupiter tried to refresh the routes to fetch the most up-to-date pricing, it failed to return those routes. This could be due to RPC node issues. We won't let you swap because the current route pricing options we show may be outdated, and that put you at risk of getting the less optimum price.
• You may try to change the RPC (setting accessible from the top-right wheel icon) and refresh the page and try to fetch those routes again.

Protocols / Projects are free to integrate Jupiter swap with Swap API, Jupiter operates in a decentralized way. That said, we encourage protocols/ projects to reach out to our team when the integration is done and live, we are happy to work together on co-marketing and getting the words out.

• Jupiter Limit Order do charge a platform fees of 0.2% on taker.
• In the case of partners integrating Jupiter Limit Order, they will be entitled to a share of 0.1% referral fees, while Jupiter collects the other 0.1% as platform fees.
• The fees are collected and withheld by the program and are claimable anytime.

• Jupiter Limit Order execute your order based on the price that you have set by matching with the available liquidity on-chain across Solana. A few scenarios or cases where the order is not being fulfill
• If the order size is too large (and there is insufficient liquidity on-chain) - in this case, Jupiter keeper will attempt to execute your order in a smaller chunk to partially fill your orders and will continue to do so until order is fully executed
• The price wick happen for a very short period of time, and the liquidity have all been taken up at that price.
• For more information on how Jupiter Limit Order works - How Limit Order Works

• By initiating an order on the limit order, a keeper will try to fill your orders with swaps as soon as the specified price is reached. Sometimes, mostly due to slippage, transactions can fail.
• The transaction fees for transactions initiated (and signed) by the keeper are paid by the keeper.