Topic object
The Topic object has 6 fields and is returned by 1 endpoint on Xiaohongshu (RedNote). A call costs $0.0200. It is a preview structure and may still change.
A Topic is the page that gathers the posts made under one hashtag or subject, with its name, its description and how often it was viewed. It comes from the topic pages of Xiaohongshu (RedNote), which add the discussion count the page shows in ext.discussions.
Its id, the topic page ID of 24 hexadecimal characters, goes unchanged to the endpoint that lists the trending notes under it, which come back as Post. A Trend on a hot list is something else: an entry of a board, identified by its name.
Fields
A field the platform cannot give is left out of the item and named in meta.unavailable. It is never filled with a guess or a zero.
ID; pass it unchanged to the endpoints that get the topic and list the posts under it
Name of the topic
Link that opens the topic
What the topic says it is about; null when it says nothing
Topic counts
Views of the topic
Posts under the topic
What a platform cannot give
A platform stands against a field when none of its endpoints gives it.
metrics.postsXiaohongshu (RedNote)meta.unavailable.Endpoints that return Topic
The number beside each platform is how many of its endpoints return it.
Example
One item from xiaohongshu.topics.get, as recorded 2026-10-13 03:28 UTC. Names, text, IDs and links are examples; the figures are as recorded.
{
"id": "6ba8911100000000e0fbcdfc",
"name": "周末露营装备推荐",
"url": "https://www.xiaohongshu.com/page/topics/6ba8911100000000e0fbcdfc",
"description": null,
"metrics": { "views": 8553318142 }
}