A third-party API is a program that allows you to connect different functionalities from different apps. It is typically provided by large corporations, but it does not have to be. Third-party APIs allow you to access third-party data and software functions on your application or website. They help two systems talk to each other by stating the rules of communication between them. Third-party APIs are different from first-party APIs, which are intended to be used internally.
Third-party APIs are used to make use of data or services provided by third parties, such as Facebook, Twitter, or Google. For example, you can use mapping APIs to display custom maps on your pages. Uber uses Google Maps Map functionality to track Uber rides. Third-party APIs get you pre-built features and functionalities, so you don’t have to spend weeks or months building something that’s already available.
Third-party APIs work by linking to a JavaScript library or by making an HTTP request to a predefined URL pattern. When the connection is established, the user’s request is sent from the app to a server via the API and vice-versa. It is a two-way communication. To use a third-party API, an application must meet certain security criteria to pass data through the door.
Using third-party APIs can save time and high cost of building the functionality on your own. They allow you to leverage the technology, expertise, and resources of other companies. However, third-party API security is a big concern for product managers because APIs are a common attack vector for hackers.
