web scraping – Is there a publicly accessible API for credit card rewards data?

I’m trying to create a credit card comparison tool similar to Ratehub’s and Greedyrates’

https://www.ratehub.ca/credit-cards

https://www.greedyrates.ca/

Do major card networks like Visa, Mastercard, American Express have APIs that I can use to retrieve up-to-date data for comparison? How do the sites above get their data to compare credit cards?