Install OpenOcean Aggregator SDK

You can install the SDK by npm

$ npm i @openocean.finance/openocean-sdk

if you use yarn as your module management tool.

$ yarn add @openocean.finance/openocean-sdk

if you want to build up a jwallet and contract object by yourself, you will need web3 and bignumber.js.

$ npm install bignumber.js
$ npm install web3

More reference links

https://docs.openocean.finance/dev/aggregator-api-and-sdk/aggregator-sdk