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POST/v1/comments"platform": "xiaohongshu"

Xiaohongshu (RedNote) Comments API

The comments under one note.

Get the comments under any public Xiaohongshu note and get back text, likes, reply count and time, as JSON over HTTP or from your AI client over MCP. A call to the Xiaohongshu (RedNote) Comments API costs 12 credits ($0.024 to $0.04 depending on the pack), failed calls are free, and the response has the same format as every other call. Last tested 2026-11-04.

Start for freeSign in to run
100 credits on sign-up, no card needed
12 creditsper call, ≈ $0.024–$0.04
Usually 10 itemsup to 20 per page, one page per call
2026-11-04last tested
882 Bsample response, 1 item

Last updated:

Need 100 items? Send limit: 100 and one call pages for you: at most 10 pages, 120 credits. It stops once it has them or the list ends; pages it does not use are not charged, and neither are pages that fail. Reading 1,000 items comes to about 1,200 credits, about $4.00.

Daily watch: tell your AI “watch this daily” and this call runs by itself every day, sending only what is new: at most 372 credits a month, about $1.24. How to set it up

What you get from the Xiaohongshu (RedNote) Comments API.
From a recorded answer.

A recorded call returned 10 items; here is the first, field by field. Names and text are removed from the sample; the numbers are as recorded.

Lighter for your AI: the same recorded data (10 items) is about 4,683 tokens as the platform's raw JSON and about 1,609 as this interface returns it, 65% fewer (measured 2026-11-06). How it was measured

FieldIn the recorded answer
urlnull: Xiaohongshu cannot give it
textremoved from the sample
published_at2026-10-11T13:28:37.000Z
author.labelanonymous_1
metrics.likes0
reply_count0
content_idremoved from the sample
parent_idnull
root_idnull

12 credits a call (≈ $0.024–$0.04): about 250 calls for $10.

Easier with a ready-made tool: Comment analysis. The topics in their comments and how big each is, plus questions, buying intent and complaints.

Xiaohongshu (RedNote) Comments API: request and response

curl https://api.socialtoai.com/v1/comments \  -H "Authorization: Bearer $SOCIALTOAI_API_KEY" \  -H "Idempotency-Key: $(uuidgen)" \  -H "Content-Type: application/json" \  -d '{    "platform": "xiaohongshu",    "id": "6a9c5884000000002b002d95"  }'
import osimport uuidimport requestsresponse = requests.post(    "https://api.socialtoai.com/v1/comments",    headers={        "Authorization": f"Bearer {os.environ['SOCIALTOAI_API_KEY']}",        # A new key for each request; the same one again retries it without paying twice.        "Idempotency-Key": str(uuid.uuid4()),    },    json={        "platform": "xiaohongshu",        "id": "6a9c5884000000002b002d95",    },)print(response.json())
# Connected over MCP? Ask in plain words.Read the comments under this Xiaohongshu note: 6a9c5884000000002b002d95# Your AI calls the comments tool with:{  "platform": "xiaohongshu",  "id": "6a9c5884000000002b002d95"}
Change the requestThe code above follows.
value
Sign in to run12 creditsOpens in the Playground with these parameters after you sign in. It never runs by itself.
200 OK882 B12 credits
{  "platform": "xiaohongshu",  "status": "ok",  "items": [    {      "platform": "xiaohongshu",      "id": "…",      "ref": "…",      "approx": [],      "type": "comment",      "url": null,      "text": "…",      "published_at": "2026-10-11T13:28:37.000Z",      "author": {        "label": "anonymous_1"      },      "metrics": {        "likes": 0      },      "reply_count": 0,      "content_id": "…",      "parent_id": null,      "root_id": null    }  ],  "unavailable": ["url"],  "page": {    "has_more": true,    "cursor": "cur_…",    "cursor_expires_at": "2026-10-12T19:13:50.000Z"  },  "cost_credits": 12}
anonymous_1·
likes 0replies 0

Names and text were removed from the sample; the numbers are as recorded.

Sample data1 of the 10 items recorded

Xiaohongshu (RedNote) Comments API parameters.
5 parameters, 1 required.

Send them as a JSON body with POST. Your key goes in the Authorization header, never in the URL.

NameTypeRequiredDefaultDescription
platformstringRequired—Always "xiaohongshu" on this page.
idstringOne of these—Note ID, 24 hexadecimal characters. With only a link or a share text, give it as url
urlstringOne of these—Link to the note, pasted as it is: the https://www.xiaohongshu.com/explore/… address from the browser, the https://www.xiaohongshu.com/discovery/item/… link the website shares (query parameters such as xsec_token are fine), a whole share text with such a link in it, or the xhslink.com short link the app copies (alone or in its share text). A short link is opened once to see which note it leads to; where it cannot be, paste the note's full link or its ID
reply_ofstringOptional—When given, returns the replies under one comment (12 credits).
cursorstringOptional—Pass page.cursor from the last response to get the next page.

Where to get what you send.

id

Note ID, 24 hexadecimal characters. With only a link or a share text, give it as url (e.g. 6a9c5884000000002b002d95)

Every item these return carries its ref; send it as it is:

Or send the web link: the url field of the same items.

Xiaohongshu (RedNote) Comments API response fields.
What Xiaohongshu cannot give is marked.

FieldTypeMeaning
items[].urlstringalways nullA link to the comment, where the platform has one.
items[].textstringThe comment itself.
items[].published_atstringWhen it was posted, ISO 8601 in UTC.
items[].author.labelstringAn anonymous label, stable within one response. Whoever wrote it is never named.
items[].metrics.likesintegerLikes.
items[].reply_countintegerHow many replies it has.
items[].content_idstringThe item the comment is under.
items[].parent_idstringThe comment it replies to directly; null for a top-level comment.
items[].root_idstringThe top-level comment its thread hangs under.
nullFields Xiaohongshu cannot give

Read null as “Xiaohongshu did not give this”, not as zero. These are always null on this call:

  • urlA link to the comment, where the platform has one.
Other values of this call

Send the parameter and the call returns something else:

reply_ofthe replies under one comment12 credits

Compared with the Kuaishou Comments API, this call also gives reply count.

Every item also has platform, id, ref, approx and type; the response around the items is the same on every call. Response format

Xiaohongshu (RedNote) Comments API: paging and billing.

One call returns a page of usually 10 items, up to 20 items. When page.has_more is true, send page.cursor back as cursor for the next page; each page costs 12 credits and a cursor works for 30 minutes.
A call that runs and finds nothing is a successful call: status is "empty", items is empty, and it costs 12 credits.
On this call Xiaohongshu cannot tell a note that does not exist from one with no data: both come back as empty, and both are charged.

5 calls per second per key, 20 after a purchase; going over is not charged. Rate limits

A failed call costs 0 credits and is never retried on its own. Error codes

“Last tested” above is the last day a real call of this interface succeeded. Each call reads from the platform, and fetched_at in the answer is when it was read. The same request sent again with the same key within 5 minutes is a replay (replayed: true): 0 credits, and the answer as first read.

Once connected over MCP, these questions use the Xiaohongshu (RedNote) Comments API.

  1. Read the comments under this Xiaohongshu note: 6a9c5884000000002b002d95
    comments {"platform":"xiaohongshu","id":"6a9c5884000000002b002d95"}
    12 credits
  2. Search Xiaohongshu for notes about "咖啡", then for the first 3: read the comments under this Xiaohongshu note.
    search {"platform":"xiaohongshu","query":"咖啡"}comments {"platform":"xiaohongshu","id":"<ref>"} × 3
    48 credits

Give this to your AI.
Copy it into Claude or ChatGPT.

How to connect
Prompt
Use the SocialToAI MCP server (https://mcp.socialtoai.com/mcp) for this: Read the comments under this Xiaohongshu note: 6a9c5884000000002b002d95Call the comments tool with {"platform":"xiaohongshu","id":"6a9c5884000000002b002d95"}. Needed: id, url.For many items pass limit (limit=100 is at most 10 pages) and one call pages for you; each page costs 12 credits and unused pages are not charged.Before you start, work out how many credits it will take in all and ask me; call it only after I agree.If SocialToAI is not connected yet, tell me how to connect it; never ask me to paste a key into the chat.Answer with a link to every item you used, and tell me how many credits it cost.

Paste it into a chat once SocialToAI is connected over MCP. There is no key in it: Claude and ChatGPT sign in, other clients send a key in a header.

These ready-made tools call it when they run.

brand-buzz
Brand buzz

How people feel about it on each platform, what comes up most, and the posts behind it

comment-insights
Comment analysis

The topics in their comments and how big each is, plus questions, buying intent and complaints

account-watch
Account snapshot

What each one posted lately, and which posts beat its usual numbers

creator-card
Creator profile

Their accounts on other platforms, the numbers on each, and how sure the match is

Work scenarios that use it.

brand-monitoring
Brand monitoring

Your AI tells you what people say about a brand: the share of each attitude, what they praise and what they complain about, with the posts behind each point.

product-research
Product research

Your AI reads what people say about a product category in threads and posts, and comes back with the complaints and wishes that keep coming up, each with the post it came from.

comment-sentiment-research
Comment research

Your AI reads the comments under the posts you choose and tells you the topics and their shares, the questions people ask and the overall mood, with quotes.

The same call on other platforms.

All platforms and prices
POST/v1/comments{ "platform": "xiaohongshu", "id": "6a9c5884000000002b002d95" }12 creditsper call
TikTok Comments API2 credits
Instagram Comments API2 credits
X (Twitter) Comments API2 credits
Reddit Comments API2 credits
YouTube Comments API2 credits
Facebook Comments API2 credits
LinkedIn APIno comments
Threads APIno comments
Telegram APIno comments
Pinterest APIno comments
Douyin Comments API2 credits
Weibo Comments API2 credits
WeChat Articles Comments API12 credits
Bilibili Comments API2 credits
Zhihu Comments API2 credits
Kuaishou Comments API2 credits
WeChat Channels Comments API12 credits
Meta Ad Library APIno comments
Google Ads Transparency APIno comments
Change one word in the request: platform. The response keeps the same shape.

Read next.

Xiaohongshu official API: access, prices and limits

What its own API allows, who can use it and what it costs, with sources.

Comments API, every platform

Which platforms give comments, how many a page, at what price.

How to let ChatGPT read Xiaohongshu (RedNote)

connect ChatGPT to Xiaohongshu notes and comments

Let Claude Code and Cursor read Xiaohongshu and Douyin, with no QR code or cookie

connect Claude Code and Cursor to Xiaohongshu and Douyin with no QR code or cookie, and what a self-run server costs you

How brands outside China monitor Xiaohongshu (RedNote), Douyin and Weibo with AI

monitor Xiaohongshu, Douyin and Weibo from outside China with AI, in English, with original links

How to analyze video comments with AI, and keep the original words

what comments say, with original words: the tool or your AI, price per platform, a recorded answer

What is a Xiaohongshu note ID, and where do I find it?

where the ID is in a link, what its first 8 characters mean, why it needs a token, tested

Xiaohongshu (RedNote) MCP server

Let your AI read Xiaohongshu.

Xiaohongshu (RedNote) Comments API: questions.
Short answers.

All Xiaohongshu data APIs
Do I need a Xiaohongshu account or Xiaohongshu's own API access?
No. You only need a SocialToAI key. The call returns content and account information publicly visible on Xiaohongshu; you never sign in to Xiaohongshu or apply for anything there.
Can I get the replies under one comment?
Yes: send reply_of in the request. That call costs 12 credits.
What does one call cost in dollars?
12 credits: $0.04 at 300 credits per dollar (purchases from $10), $0.024 at 500 per dollar (from $200). Credits never expire and there is no subscription. 100 free credits on sign-up, no card.
Am I charged when a call fails or finds nothing?
A failed call costs 0 credits and is never retried on its own. A call that runs and finds nothing is a successful call: status is "empty" and it costs 12 credits.
How much does one call return?
One call returns a page of usually 10 items, up to 20 items. When page.has_more is true, send page.cursor back as cursor for the next page; each page costs 12 credits and a cursor works for 30 minutes.
Is there a rate limit?
5 calls a second per key, 20 a second after your first purchase. A request over the limit is told how long to wait and is not charged.
How do I use it from Claude, ChatGPT or Cursor?
Yes. In Claude or ChatGPT, add the MCP address https://mcp.socialtoai.com/mcp as a custom connector, sign in with the code we email you and press Allow; there is no key to paste. In Claude Code, run one command, type /mcp, pick socialtoai and sign in; Codex and Cursor sign in too, with their steps on the connect page. Then ask in plain words and your AI calls comments for you.
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