What it checks
For images:mimeType ∈ { image/jpeg, image/png, image/webp, image/gif }.
For videos: mimeType === "video/mp4".
Twitter / X
twitter.media.mime_allowed
Twitter accepts jpeg/png/webp images, gif animations, and mp4 video.
Documentation Index
Fetch the complete documentation index at: /llms.txt
Use this file to discover all available pages before exploring further.