An API is a function that allows a company or other entity to open up a portion of its services to the outside world for use.
API Key and Secret are required to use the exchange's specific API.
By using the exchange's API, other companies can use the services expanded by the exchange, and the services of other companies can be connected to the various functions of the exchange.
This service uses the API of the exchange to buy and sell cryptocurrency on the exchange by linking to the exchange with API keys and Secret.