To provide a smooth developer experience with APIs, it's essential to prioritize API documentation, which should be user-friendly, easy to navigate and comprehend. Postman can help export API requests in the form of a Postman Collection file, which can then be used to generate complete API documentation and SDKs. To improve the quality of API documentation, assign meaningful and unique names to Postman requests, group related requests into folders, add descriptive content such as descriptions, request parameters, examples, and authentication information. Additionally, consider using APIMatic's customizable developer experience solution, which comes bundled with rich features like SDKs, reactive code samples, API explorer, and more. By following these tips, developers can create high-quality API documentation that enhances their overall experience.