The Park Shark Amsterdam API gives a list of nearby places where you could park and possibly pay less. A custom calculation model provides the total cost of parking, given a starting time, duration, method of payment and location. The website is online, and a button can be installed on other websites, which evokes a pop-up parking advice window. The makers can see this implemented on on the contact page of business websites. The module is online via an API, so that other developers can use it to make their own apps and mashups.
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