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What is an API?

Last Updated 2025-03-06 UTC+8.

An Application Programming Interface (API) serves as a protocol that facilitates communication between various software components. It outlines the methods through which data can be requested and exchanged, providing a standardized interface for different systems to interact seamlessly.

For instance, when Developer A creates a module, they define the API specifications that Developer B can utilize. These specifications encompass the properties, methods available for use, the purpose of the API, and instructions on how Developer B can seamlessly integrate these APIs into their system.

The advantages and disadvantages of APIs share similarities with those of SDKs. For more detailed insights, please refer to this webpage.

References

  1. Rapidops. (2023, August). SDK vs. API Comparison: Benefits and Challenges. https://www.rapidops.com/blog/sdk-vs-api-comparison/
  2. IBM. (2021, July 13). SDK vs. API: What’s the Difference? https://www.ibm.com/think/topics/api-vs-sdk
  3. GeeksforGeeks. (2025, July 23). What is Software Development Kit (SDK)? https://www.geeksforgeeks.org/what-is-software-development-kit-sdk/