PumpFun Swap Endpoint

POST /api/v1/pumpfun/swap

Request Body

Parameter	Type	Description
userAddress	string	The Solana wallet address of the user executing the swap
bondingCurveAddress	string	The address of the PumpFun Bonding Curve of the token
tokenAddress	string	The address of the token to swap (also called mint or CA)
tokenAmount	number	The amount of tokens to buy
solThreshold	number	The maximum Sol amount threshold for the swap, needed for buys only. Sells assume this value as 1 lamport, because... who cares about threshold on sells?
isBuy	boolean	Whether this is a buy (true) or sell (false) operation
skipAccountCheck	boolean	Optional, default: false. Whether to skip the account existence check for the user. It will make any copies of modified transaction fail after the first one lands on chain, because will try to create the same account again. Used only for buys.
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",
    bondingCurveAddress: "7BcRpqUC7AF5Xsc3QEpCb8xmoi2X1LpwjUBNThbjWvyo",
    tokenAddress: "BAHY8ocERNc5j6LqkYav1Prr8GBGsHvBV5X3dWPhsgXw",
    solThreshold: 1.5,
    tokenAmount: 100000,
    isBuy: false
};

async function getSwapTX() {
    try {
        const response = await fetch('https://api.degen.ing/api/v1/pumpfun/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/pumpfun/swap' \
  -d '{
    "userAddress": "dafs3GGvJoUYjTmxRXhkqCj3ULa9bvKmX7EDDMTwVFE",
    "bondingCurveAddress": "7BcRpqUC7AF5Xsc3QEpCb8xmoi2X1LpwjUBNThbjWvyo",
    "tokenAddress": "BAHY8ocERNc5j6LqkYav1Prr8GBGsHvBV5X3dWPhsgXw",
    "tokenAmount": 1000000,
    "solThreshold": 1.5,
    "isBuy": true
}'

Response

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