PlanetRe, a cloud software vendor for real estate, has integrated Intuit's Quickbooks into its planetRE Money platform using Intuit's API for the popular accounting software. Intuit's API is among 46 accounting-related APIs in our API directory. Intuit's RESTful API is part of its Partner Platform, whose documentation covers everything from pricing to the development lifecycle.
Mobile application users love maps, and developers have many API choices to add mapping features to their apps. If you want to add navigation, location based features, route planning or other mapping related features to apps, here's a list of popular APIs from ProgrammableWeb.