Have you ever designed an API from scratch without developer assistance?

Yes, I have had to design APIs from scratch myself. In this process, I usually:

• Define business requirements and goals for the API.
• Form a list of resources and operations (endpoints) needed.
• Choose an appropriate API style (REST, GraphQL, gRPC) depending on the task.
• Define the structure of requests and responses, including data formats (JSON, XML).
• Plan API versioning for future changes.
• Describe errors and response codes so that clients understand possible situations.
• Document the API using OpenAPI/Swagger for ease of use.

An example of a simple REST API for task management:

Method	Path	Description
GET	/tasks	Get list of tasks
POST	/tasks	Create a new task
GET	/tasks/{id}	Get task by ID
PUT	/tasks/{id}	Update task
DELETE	/tasks/{id}	Delete task

This approach allows creating a clear and extendable API without developer assistance, based on requirements and best practices.