Public APIs are also referred to as Open APIs. While there are slight differences between the two on a technical level they are both considered the same. The term is used interchangeably. API is an abbreviation for application programming interface which allows for network owners or a service provider to give universal access to users. The access is given through developers that use the prototype API in their programs which are then in turn used by regular people aka those who are not developers.
Are Open APIs Common?
Open APIs are very common. These APIs are a dime a dozen and are published widely across the internet not to mention shared by hundreds of developers. The range and scope of these APIs vary greatly to those meant for singular purposes like uploading batch files to a SAAS system to complex artificial intelligence resource access.
The Benefits
Many developers and especially smaller ones make a great deal of money developing APIs for an array of resources. These APIs are often used by developers who specialize in developing interface based software that are meant to achieve certain tasks like build AI into apps. The APIs many of which are available for use by developers for free make it easier for developers to choose the right type for their project. However, as we’ll look at below, there are certain inherent disadvantages too.
What are the Disadvantages?
Similar to any customer-centric business the reputation of a business can either be improved, or it can suffer damage. For API developers it all boils down to how well the API was received by the community. A well-received API which was devoid of all security flaws and is easy to use will help the developer build a solid reputation.
The problem with open APIs is that it can often be a source of much frustration for developers since the publishing company has authority over the source code. That means if the company or the person who developed the API decides to make major changes to its functionality which affects existing software implementing it, then it can literally break the system. Developers will then need to scramble to fix the issue with updates which can take weeks.
Architectural Outlook of An Open API
Open APIs can just as easily be designed by an experienced developer, but the priority is architecture. Choosing the right architecture makes a huge difference which is why using any custom formats or proprietary protocols isn’t the best idea for longevity. However, you’ll do well to use community-driven standards and open source technology.
Open or Closed Open APIs?
Most people assume that the concept of Open API means that it will be restriction free. Though that’s not the case. Open APIs can be accessible to everyone, and some can be invoked via the internet. The developer can choose to add layers of restrictions too.
A closed API can’t be accessed by anyone over the internet. I will require going through firewalls and security. Many are in secure servers and require authentication. Also all the processes and internal services are closed. While open APIs have more focused capabilities offering an array of services.