We are fixing the price at the time of creating pair for our token with BNB by adding liquidity. If the Price of the BNB/BUSD. How can we fetch the current market price and update in our DEX?

Is there is any external APIs to achieve this? I am using the Pancake router contract https://testnet.bscscan.com/address/0xd99d1c33f9fc3444f8101754abc46c52416550d1.

Thanks in advance

1 Answer 1


You can get price of BNB/BUSD using getAmountsOut method

//one WBNB in Wei    
const oneWBNB = '1000000000000000000';
const WBNB = '0xbb4cdb9cbd36b01bd1cbaebf2de08d9173bc095c';
const BUSD = '0xe9e7cea3dedca5984780bafc599bd69add087d56';
const busdAmount = await routerContract.methods.getAmountsOut(oneBNB, [WBNB, BUSD]).call();
  • Thanks. But If the BNB price increases in market. Is that price will update in this contract? Jul 3, 2021 at 8:53
  • No. You need to write a function to monitor prices changes. This function will check price every N seconds and notify user about new price.
    – M M
    Jul 3, 2021 at 9:58
  • 1
    @M M Is there is any API to monitor price change? Jul 3, 2021 at 10:33

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