The E*TRADE PHP SDK by E*TRADE allows developers to access the E*TRADE trading platform from their PHP applications. The SDK includes libraries for handling authentication, accounts, market data, and orders.
The app55 API lets online and bricks and mortar merchants in the UK take payments from customers on any device, on websites designed and controlled by the retailer. app55 joins 362 payment APIs in our directory. In addition to offering one click, being fully brandable (meaning the customer sees your site only, and is not aware of app55's role), all of the stiff PCI compliance issues that make handling these transactions so complex is outsourced through them.
The United States Department of Agriculture (USDA) has just launched the brand new USDA Farmers Market Directory API providing developers programmatic access to the USDA National Farmers Market Directory database. According to the USDA website, the National Farmers Market Directory has over 7,800 farmers market listings for all 50 states and provides consumers farmers market information such as market locations, directions, operating times, product offerings, and accepted forms of payment.