How to Write Great API Documentation Maintain a Clear Structure. The glue that holds your documentation together is the structure, and it normally evolves as you develop new features. Write Detailed Examples. Most APIs tend to include many complex API endpoints. Consistency and Accessibility. Think About Your Documentation During Development. Conclusion. Click to see full answer. Likewise, people ask, how do I use API documentation? Start Using an API Most APIs require an API key. The easiest way to start using an API is by finding an HTTP client online, like REST-Client, Postman, or Paw. The next best way to pull data from an API is by building a URL from existing API documentation. One may also ask, what does API documentation look like? API documentation is a technical content deliverable, containing instructions about how to effectively use and integrate with an API. API description formats like the OpenAPI/Swagger Specification have automated the documentation process, making it easier for teams to generate and maintain them. Subsequently, question is, what is a good API? Characteristics of Good APIs. An API is a set of commands, functions, protocols, and objects that programmers can use to create software or interact with an external system. It provides developers with standard commands for performing common operations so they do not have to write the code from scratch.Why is API documentation important?API documentation improves the developer experience by letting people integrate as quickly as possible with your API and increase user awareness. They’re analytical, precise, and are trying to solve important problems with your API.