Today we publish our corporate bonds fundamentals and historical API. With new bonds API, it’s easy to get daily updated fundamentals and historical data feeds for almost all major US corporate bonds. More information you can read on our Bonds Data Documentation page. Useful highlights for the new corporate bonds API: We update the bond data both for fundamentals and historical data feeds on a daily basis. We support only US corporate bonds for the moment. There are always new corporate bonds on the market, if you didn’t find any particular bond, please contact us and we will add the data within 24 hours. Bonds fundamentals and historical data could be accessed either via ISIN or via CUSIP IDs. Other IDs are not supported at the moment. For historical data, we provide only end-of-day data. There are three values for each trading day: price, yield, and volume. More information you can read on our Bonds Data Documentation page.