TikTok Hashtag (Challenge) API Endpoints

Challenge Info (ID)

Retrieve detailed information about a hashtag challenge using its unique ID, including usage stats and description. Returns cha_name, desc, cover art and two headline metrics: user_count (creators who posted) and view_count (total views - the cat challenge alone exceeds a trillion). Also flags is_commerce for branded challenges. Snapshot these counters daily to measure campaign momentum.

Challenge Info (Name)

Fetch details for a specific hashtag challenge by name. Access view counts, descriptions, and related data. Identical response shape to the ID variant - cha_name, desc, user_count, view_count, is_commerce, cover - but keyed by the hashtag text itself, so it doubles as name-to-ID resolution. Resolve once, store the id, then use /challenge-posts/ for the video stream.

Post Challenge

Retrieve a stream of videos associated with a specific hashtag challenge. Monitor trend participation. Full video objects under the challenge_id, cursor-paged, with an optional region parameter for country-level cuts. Pair the stream with the user_count and view_count from the info endpoints to turn raw participation into a trend dashboard.

Challenge Search

Search for trending hashtags and challenges by keyword. Discover viral topics and popular tags to boost your content strategy. Each hit in challenge_list carries id, cha_name, desc, user_count, view_count and commerce flags, so you can rank tags by real usage instantly. A quick sweep across product or campaign keywords shows which related hashtags actually carry views before you commit content to them.