How do I collect hit topic ideas on Xiaohongshu in bulk? (2026)
1 seed keyword comes to about $0.26 a round: expand it with xiaohongshu.pgy.keywords.related, search 10 of the words with xiaohongshu.notes.search sorted by heat, and add the hot topics of xiaohongshu.trends.list. That is about 200 notes in one table, to pick from by saves and comments. DataXAPI reads Xiaohongshu (RedNote) with 21 endpoints, from $0.0200 a call; a failed call is not charged.
Updated 2026-11-04
Three calls, one table
Start from a word your readers would search. Each call gives a different part of the idea.
| Endpoint | What it gives | Each |
|---|---|---|
xiaohongshu.pgy.keywords.related | About 98 words people search before and after yours, each with its place and search index. view=full adds the notes about it and their reads | $0.0400 |
xiaohongshu.notes.search | About 20 notes a page with sort=popular: title, text, author, likes, saves, comments, shares, images, a link that opens | $0.0200 |
xiaohongshu.trends.list | About 20 hot topics Xiaohongshu suggests to creators, with the platform's heat score | $0.0200 |
From the table to a list of ideas
With an AI that has DataXAPI connected, say: “Expand this keyword, search the 10 words closest to my readers sorted by heat, and group the notes by angle. For each angle give the notes, total saves and comments, and 3 titles of my own in that style.” It picks the endpoints and tells you what it spent.
Saves and comments say more than likes: someone who saves a note means to come back to it, and comments show what people still want to know. A round a week for one seed word comes to 4 × $0.26 = $1.04 a month.
Good to know
Search results have no read counts and no follower counts. To find hits from small accounts, read the author with xiaohongshu.users.get, at $0.0200, for the notes that made your shortlist. The search index is a score the platform works out, not a number of searches, and it is null for a word the platform gives no figures for. DataXAPI reads public data only.
Endpoints
Each with its price; every page has the parameters, the fields and a recorded response.