create_post
Schedule a video on a connected account (see list_accounts for each account's platform). The post waits in mixetape (editable, cancellable) until shortly before scheduledAt. YouTube and Facebook get it leadMinutes early, unpublished, and publish it themselves at scheduledAt; Instagram and Threads get it prepared leadMinutes early and mixetape publishes it at scheduledAt; TikTok and Pinterest cannot hold a post, so mixetape posts it at scheduledAt. Each platform takes its own metadata (Facebook format reel for a Reel, Pinterest boardId is required, TikTok privacyLevel). Thumbnail, playlists and captions are applied right after upload where the platform supports them; firstComment is posted once it is public. mediaUrl: a public https URL, or an r2:// URL from mixetape storage (create_upload / import_file). Needs the publish permission. Also available as the MCP tool create_post.
https://mixetape.com/api/v1/tools/create_post