SocialToAIStart freeConsole
POST/v1/call/xiaohongshu.kol_search

Xiaohongshu (RedNote) KOL search API (Pugongying)

Only on Xiaohongshu.

Search Xiaohongshu creators on PGY by terms, matched against what they write about: creator ID, name, handle, location, content categories, followers. The creator ID the other PGY endpoints take comes from here. A call to the Xiaohongshu (RedNote) KOL search API (Pugongying) costs 24 credits ($0.048 to $0.08 depending on the pack); failed calls are free. Call it over HTTP or from your AI client over MCP. Last tested 2026-11-02.

Start for freeSign in to run
100 credits on sign-up, no card needed
24 creditsper call, ≈ $0.048–$0.08
Up to 20 per pageone page per call
2026-11-02last tested
903 Bsample response, 1 item

Last updated:

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 744 credits a month, about $2.48. How to set it up

What you get from the Xiaohongshu (RedNote) KOL search API (Pugongying).
From a recorded answer.

A recorded call returned 20 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 (20 items) is about 27,374 tokens as the platform's raw JSON and about 2,826 as this interface returns it, 89% fewer (measured 2026-11-06). How it was measured

FieldIn the recorded answer
titleremoved from the sample
urlnull
ranknull
heatnull
fields.account_idremoved from the sample
fields.usernameremoved from the sample
fields.locationremoved from the sample
fields.categories1 entry
fields.subcategories2 entries
fields.followers30,634

24 credits a call (≈ $0.048–$0.08): about 125 calls for $10.

Easier with a ready-made tool: Find creators. Creators who make that content, with their size, recent posts and how well each fits.

Xiaohongshu (RedNote) KOL search API (Pugongying): request and response

curl https://api.socialtoai.com/v1/call/xiaohongshu.kol_search \  -H "Authorization: Bearer $SOCIALTOAI_API_KEY" \  -H "Idempotency-Key: $(uuidgen)" \  -H "Content-Type: application/json" \  -d '{    "query": "咖啡"  }'
import osimport uuidimport requestsresponse = requests.post(    "https://api.socialtoai.com/v1/call/xiaohongshu.kol_search",    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={        "query": "咖啡",    },)print(response.json())
# Connected over MCP? Ask in plain words.Use the Xiaohongshu PGY creator search interface (xiaohongshu.kol_search) with query: 咖啡.# Your AI calls the call tool with:{  "query": "咖啡"}
Sign in to run24 creditsOpens in the Playground with these parameters after you sign in. It never runs by itself.
200 OK903 B24 credits
{  "op": "xiaohongshu.kol_search",  "platform": "xiaohongshu",  "status": "ok",  "items": [    {      "platform": "xiaohongshu",      "id": "…",      "ref": "…",      "approx": [],      "type": "entry",      "entry_type": "creator",      "title": "…",      "url": null,      "rank": null,      "heat": null,      "fields": {        "account_id": "…",        "username": "…",        "location": "…",        "categories": ["…"],        "subcategories": ["…", "…"],        "followers": 30634      }    }  ],  "unavailable": [],  "page": {    "has_more": true,    "cursor": "cur_…",    "cursor_expires_at": "2026-10-12T22:25:09.000Z"  },  "cost_credits": 24}
entry_type
creator
account_id
…
username
…
location
…
followers
30634

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

Sample data1 of the 20 items recorded

Xiaohongshu (RedNote) KOL search API (Pugongying) parameters.
2 parameters, 1 required.

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

NameTypeRequiredDefaultDescription
querystringRequired—Search terms, matched against what creators' notes are about; for terms no creator matches the platform still returns loosely related creators, not an empty result
cursorstringOptional—Pass page.cursor from the last response to get the next page.

Xiaohongshu (RedNote) KOL search API (Pugongying) response fields.
What Xiaohongshu cannot give is marked.

FieldTypeMeaning
items[].titlestringThe entry's title or name.
items[].urlstringA link that opens it; null where the platform's list has none.
items[].rankintegerPosition on a board, from 1.
items[].heatintegerThe platform's heat score.
items[].fields.account_idstringThe creator's account ID on the platform, which the platform's account calls take.
items[].fields.usernamestringThe creator's handle.
items[].fields.locationstringWhere the creator is based, in the platform's words.
items[].fields.categoriesstring[]Content categories, first level, in the platform's words.
items[].fields.subcategoriesstring[]Content categories, second level, in the platform's words.
items[].fields.followersintegerFollowers.
nullFields Xiaohongshu cannot give

Xiaohongshu gives every field of this call. Where one item lacks a value, that field is null.

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) KOL search API (Pugongying): paging and billing.

One call returns a page of up to 20 items. When page.has_more is true, send page.cursor back as cursor for the next page; each page costs 24 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 24 credits.

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) KOL search API (Pugongying).

  1. Search Xiaohongshu creators on PGY by terms, matched against what they write about: 咖啡.
    call {"op":"xiaohongshu.kol_search","query":"咖啡"}
    24 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: Search Xiaohongshu creators on PGY by terms, matched against what they write about: 咖啡.Call the call tool with {"op":"xiaohongshu.kol_search","query":"咖啡"}. Needed: query.For more, send page.cursor back as cursor; each page costs 24 credits.Before you start, work out how many credits it will take in all and ask me; call it only after I agree.What usually comes next, with the ref or username it returns: call xiaohongshu.kol_profile (PGY creator detail), call xiaohongshu.kol_audience (PGY creator audience profile).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.

find-creators
Find creators

Creators who make that content, with their size, recent posts and how well each fits

creator-card
Creator profile

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

The interface of the same name on other platforms.

All platforms and prices
POST/v1/call/xiaohongshu.kol_search{ "query": "咖啡" }24 creditsper call
Douyin KOL search API (Xingtu)3 credits
Change the op in the path. The response around the items 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.

Creator data API, every platform

Finding creators and reading their data, platform by platform.

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 find creators on Xiaohongshu PGY and Douyin Xingtu

PGY and Xingtu by interface: how each search matches, the IDs they take, what a shortlist costs

Xiaohongshu (RedNote) MCP server

Let your AI read Xiaohongshu.

Xiaohongshu (RedNote) KOL search API (Pugongying): 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.
What does one call cost in dollars?
24 credits: $0.08 at 300 credits per dollar (purchases from $10), $0.048 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 24 credits.
How much does one call return?
One call returns a page of up to 20 items. When page.has_more is true, send page.cursor back as cursor for the next page; each page costs 24 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 call for you.
Start free · 100 credits

Your AI is one URL away
from all of social media.

Start for freeDocs

100 credits on sign-up, no card needed