PumpSwap Swap Endpoint

POST /api/v1/pumpswap/swap

Request Body

Parameter	Type	Description
userAddress	string	The Solana wallet address of the user executing the swap
tokenAddress	string	The address of the token to swap (also called mint or CA)
tokenAmount	number	The amount of tokens, required for sells only. Yea, you cannot buy an exact amount of tokens with this endpoint, sorry.
solThreshold	number	The maximum SOL amount threshold for the swap, required for buys only.
isBuy	boolean	Whether this is a buy (true) or sell (false) operation
computePrice	number	Optional. Sets total compute limit to be allocated for all instructions within the created tx.
computeLimit	number	Optional. Sets compute price in Lamports to be included as a part of the tx, known as priority fee.

Examples

JavaScript

const swapData = {
    userAddress: "dafs3GGvJoUYjTmxRXhkqCj3ULa9bvKmX7EDDMTwVFE",
    tokenAddress: "3YUErHCx6jf56kPAXAWrRBwpMQJhaShj494ckZmcpump",
    solThreshold: 1.5,
    tokenAmount: 100000,
    isBuy: false
};

async function getSwapTX() {
    try {
        const response = await fetch('https://api.degen.ing/api/v1/pumpswap/swap', {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
            },
            body: JSON.stringify(swapData)
        });

        const result = await response.json();
        console.log('Swap tx base64:', result.transaction.content);
    } catch (error) {
        console.error('Error requesting swap tx:', error);
    }
}

curl

curl -X POST \
  -H 'Content-Type: application/json' \
  'https://api.degen.ing/api/v1/pumpswap/swap' \
  -d '{
    "userAddress": "dafs3GGvJoUYjTmxRXhkqCj3ULa9bvKmX7EDDMTwVFE",
    "tokenAddress": "3YUErHCx6jf56kPAXAWrRBwpMQJhaShj494ckZmcpump",
    "solThreshold": 1.5,
    "tokenAmount": 100000,
    "isBuy": false
}'

Response

{"transaction": { "content": "<base64 encoded transaction>" } }

Implementation Notes

• It uses the same WSol account for a given token
• It closes the WSol account after each swap, so if you already have some WSol, the tx will exchange them back to Sol
• It gets the price of the token from pools, aiming for the best price. That's why on buy you do not need to provide tokenAmount parameter. Contact the dev if you need it, we can add an option for you.