Understanding the Types Of Application Programming Interface
Understanding the Types Of Application Programming Interface

Understanding the Types Of Application Programming Interface

There are various APIs currently on the market that may be used to meet both open and highly specialized programming demands. APIs may be divided into four categories based on their intended usage. This categorization aids developers in locating the best product for their developmental needs.

1. Private API

These are sometimes known as internal APIs, as mobile app development Virginia professionals may only use them within a company. These are suitable for connecting all corporate data and systems. APIs integrating payment and other HR processes inside a business are the greatest examples.

Because private APIs don’t need to be secure, they have poor identification and authorization. The overall protection measures of enterprise applications are sufficient to govern these APIs that solely function internally.

2. Partner APIs

These APIs are solely for B2B transactions, as the name implies. As a result, partner APIs are only available to authorize and specified programmers and are not open to all developers. APIs that provide other CRM organizations access to client data is the best use of partner APIs. As a result, this is permitted access with no usage of an external API. Only license holders have access to these APIs. Partner APIs feature high levels of validation, protection, and authentication when compared to all APIs.

3. Public APIs

Because these APIs are accessible, any programmer can utilize them. As a result, many organizations that want to provide APIs for development only provide public APIs accessible to a large audience. These APIs use minimal authorization and verification. Organizations may profit from per-call expenses as well as selling their public APIs.

4. Composite APIs

These APIs are a mix of two or more different types of APIs. This mixture of APIs results in significant functional improvements as well as high levels of optimized performance. Composite APIs are dedicated to meeting the unique needs of several enterprises that cannot be satisfied by a single API on its own.

API Development Terms and concepts

It’s critical to understand API development jargon. APIs are known by a variety of terms, including:

a) API Key

To create an API request, IT consultant companies will need these keys. User accounts are connected to API keys. It cannot complete the request if it lacks an API key, and the user receives an HTTP 403 response. API credentials are utilized to set access levels and authentication for the API user who has been granted access. For various interconnections, businesses use several API keys.

b) Endpoint

Endpoints, as the name implies, are the communication’s final destination. The API interaction’s checkpoints are destinations in API interaction when they engage with one another. The URL of the application or site is contained in the API’s endpoints. Extensions, in other words, are the point at which an API ends and an asset survives. Because endpoints are primarily used for seamless integration, every API’s effectiveness is determined by its communication with API endpoints.


It may be thought of as the language that two APIs used to interact. JSON is both machine and people understandable, making it simple to comprehend how data flows across APIs. As a result, it aids developers in understanding an API that lacks a separate user interface. APIs can easily understand requests and communicate replies thanks to JSON. It has a key that labels the data and the data’s value. “serial-number” is an example of a JSON block, which specifies the precise serial number of the data line holding a particular integer value.

d) GET

It’s an HTTP query that requests the webserver for a specified resource. The GET request allows you to get information without making any changes. It can transmit any HTTP headers, but it can’t transmit data because there isn’t a response body. As a result, GET queries are commonly utilized in APIs.