3️⃣Build Approval Transaction

If your allowance is not sufficient, this endpoint can help you initiate an ERC20 approval transaction.

Get Approve Tx

GEThttps://aggregator-api.xy.finance/v1/approveTx

Query parameters

Response

200

Successful Response

Body

application/json

Response Get Approve Tx Approvetx Get

ApproveTxResponseSchemaErrorResponseSchema

Request

JavaScriptCurlPython

const response = await fetch('https://aggregator-api.xy.finance/v1/approveTx?tokenAddress=text&spender=text&amount=0', {
    method: 'GET',
    headers: {},
});
const data = await response.json();

Response

200

{
  "success": true,
  "tokenAddress": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
  "spender": "0x7D26F09d4e2d032Efa0729fC31a4c2Db8a2394b1",
  "amount": "100000",
  "tx": {
    "to": "text",
    "data": "text",
    "value": "text"
  }
}

NOTE : The spender should be the contractAddress in the response of Get Quote. e.g. routes[{ROUTE_INDEX}]["contractAddress"]

Here you can find our full API reference