Bankrate API
Bankrate (bankrate.com) has 2 public methods: get mortgage rates and list best savings, CD or money market rates. Each costs 1 credit per completed run (1¢ with pay as you go); failed runs are free.
Unofficial. Not affiliated with or endorsed by Bankrate.
Methods
2Gets Bankrate's published mortgage or refinance interest rates and APRs by loan type, with the as-of date of the rate table. A ZIP code or state picks the matching state page; Bankrate describes these tables as national averages. Weekly changes are included only when Bankrate publishes a matching change.
Returns as-of date, location used, loan type, interest rate, APR, weekly change, page link
Readbankrate.com/get_mortgage_ratesLists Bankrate's current high-yield savings, CD (for a chosen term) or money market account rates in Bankrate's listed order, with APY, minimum deposit and whether the listing is sponsored.
Returns as-of date; bank, account, APY, minimum deposit, sponsored flag, page link, CD term
Readbankrate.com/list_best_savings_rates