Request to Open API Access and Publish API Documentation

I hope to use an API to perform actions such as creating new notes, appending content to existing notes, editing notes, deleting notes, and retrieving the content of specific notes.
Since API integration would make Simplenote much more user-friendly, I sincerely hope you can provide API access for Simplenote.

The issue names no files, tests, or entry points. Start by determining whether Simplenote already exposes an API and where API access could be documented; clarify the supported note operations and implementation scope before starting. Done means API access is available for creating, appending, editing, deleting, and retrieving notes, with documentation published for those operations.

Written by the indexing model from the issue text.