In the finance ecosystem, Merchant Category Codes (also known as MCCs) are used to classify businesses by the type of products or services they provide.For example, restaurants, hospitals and grocery stores have different MCCs. These MCC codes are used for calculating interchange fees, authorizing payments, and preventing fraud.The MCC of sellers get configured during onboarding; it’s important that your sellers have MCCs that match the services they're offering.The below endpoint provides a list of MCCs numbers, their description and associated system identifier.