This tag is for questions about the use of, or documentation of, the Stack Exchange Application Programming Interface (API).

The Stack Exchange API provides easy programmatic read/write access to the more common functions of the Q&A sites in the Stack Exchange network.
For example, it allows programs to read and write: questions, answers, and comments.

Reference:

• What topics can I ask about here? If your question is about some other site's API, do not use this tag and don't ask it on this site.
• The current API documentation.
• Looking for a beginner's tutorial to using the API
• API version timeline (the URL is misleading).
• API Public Beta announcement
• api-v2.2