--- title: "Xiaohongshu (RedNote) Pugongying keyword search index API · SocialToAI" canonical: https://socialtoai.com/xiaohongshu-keyword-history-api/ updated: 2026-10-30 --- # Xiaohongshu (RedNote) Pugongying keyword search index API Get a keyword's day-by-day search index on Xiaohongshu over about the last three months, from the platform's creator marketplace, with each day's notes about the keyword and how often they were shown, read and engaged with. A call to the Xiaohongshu (RedNote) Pugongying keyword search index API 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. - Page: https://socialtoai.com/xiaohongshu-keyword-history-api/ - Last updated: 2026-10-30 | Request | Price key | Credits | | --- | --- | --- | | `POST /v1/call/xiaohongshu.keyword_history` | `xiaohongshu.keyword_history` | 24 | ## What you get from the Xiaohongshu (RedNote) Pugongying keyword search index API A recorded call returned the object below, field by field. Names and text are removed from the sample; the numbers are as recorded. Lighter for your AI: the same recorded data (1 item) is about 11,622 tokens as the platform's raw JSON and about 5,113 as this interface returns it, 56% fewer (measured 2026-11-06). | Field | In the recorded answer | | --- | --- | | title | 露营 | | url | null | | rank | null | | heat | null | | fields.points | 7 entries | 24 credits a call (≈ $0.048–$0.08): about 125 calls for $10. ## Xiaohongshu (RedNote) Pugongying keyword search index API: request and response ```bash curl https://api.socialtoai.com/v1/call/xiaohongshu.keyword_history \ -H "Authorization: Bearer $SOCIALTOAI_API_KEY" \ -H "Idempotency-Key: $(uuidgen)" \ -H "Content-Type: application/json" \ -d '{ "keyword": "面膜" }' ``` ```python import os import uuid import requests response = requests.post( "https://api.socialtoai.com/v1/call/xiaohongshu.keyword_history", 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={ "keyword": "面膜", }, ) print(response.json()) ``` ## Xiaohongshu (RedNote) Pugongying keyword search index API parameters | Name | Type | Required | Default | Description | | --- | --- | --- | --- | --- | | `keyword` | string | Required | — | One keyword | ## Xiaohongshu (RedNote) Pugongying keyword search index API response fields | Field | Type | Meaning | Given | | --- | --- | --- | --- | | `items[].title` | string | The entry's title or name. | yes | | `items[].url` | string | A link that opens it; null where the platform's list has none. | yes | | `items[].rank` | integer | Position on a board, from 1. | yes | | `items[].heat` | integer | The platform's heat score. | yes | | `items[].fields.points` | array | One entry per day, oldest first: date, search_index, composite_index, notes, impressions, views, engagements. | yes; composite_index always null | Every item also has platform, id, ref, approx and type; the response around the items is the same on every call. [Response format](https://socialtoai.com/docs/api/response.md) ## Sample response ```json { "request_id": "req_00000000-0000-4000-8000-000000000001", "schema_version": "v1", "fetched_at": "2026-10-12T21:42:12.000Z", "action": "call", "op": "xiaohongshu.keyword_history", "platform": "xiaohongshu", "status": "ok", "items": [ { "platform": "xiaohongshu", "id": "露营", "ref": "露营", "approx": [], "type": "entry", "entry_type": "keyword_history", "title": "露营", "url": null, "rank": null, "heat": null, "fields": { "points": [ { "date": "2026-07-13T00:00:00Z", "search_index": 8876, "composite_index": null, "notes": 33361, "impressions": 25229649, "views": 4523846, "engagements": 188216 }, { "date": "2026-07-14T00:00:00Z", "search_index": 8762, "composite_index": null, "notes": 33750, "impressions": 24457001, "views": 4743520, "engagements": 197829 }, { "date": "2026-07-15T00:00:00Z", "search_index": 9077, "composite_index": null, "notes": 33603, "impressions": 24578646, "views": 4554487, "engagements": 210434 }, { "date": "2026-07-16T00:00:00Z", "search_index": 9328, "composite_index": null, "notes": 34232, "impressions": 28302245, "views": 4819305, "engagements": 220431 }, { "date": "2026-07-17T00:00:00Z", "search_index": 11233, "composite_index": null, "notes": 34532, "impressions": 32434694, "views": 5831644, "engagements": 278646 }, { "date": "2026-07-18T00:00:00Z", "search_index": 12636, "composite_index": null, "notes": 34772, "impressions": 35466179, "views": 6122704, "engagements": 279193 }, { "date": "2026-07-19T00:00:00Z", "search_index": 11490, "composite_index": null, "notes": 35368, "impressions": 37495492, "views": 8187198, "engagements": 302141 } ] } } ], "unavailable": ["fields.points.composite_index"], "warnings": [], "applied_params": { "keyword": "面膜" }, "cost_credits": 24, "billing": { "cost_credits": 24, "balance_credits": 76, "today_spend_credits": 24, "daily_limit_credits": null, "daily_remaining_credits": null, "display": "This call: 24 credits (≈ $0.08). Balance: 76 credits (≈ $0.25)." }, "replayed": false } ``` ## Xiaohongshu (RedNote) Pugongying keyword search index API: paging and billing - One call returns one object, with no pages, for 24 credits. - 5 calls per second per key, 20 after a purchase; going over is not charged. [Rate limits](https://socialtoai.com/docs/credits-and-billing.md#rate-limits) - A failed call costs 0 credits and is never retried on its own. [Error codes](https://socialtoai.com/docs/api/errors.md) - Interface last tested: 2026-10-30. 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) Pugongying keyword search index API - Get a keyword's day-by-day search index on Xiaohongshu over about the last three months, from the platform's creator marketplace, with each day's notes about the keyword and how often they were shown, read and engaged with: 面膜. → `call {"op":"xiaohongshu.keyword_history","keyword":"面膜"}`, 24 credits ## Give this to your AI ``` Use the SocialToAI MCP server (https://mcp.socialtoai.com/mcp) for this: Get a keyword's day-by-day search index on Xiaohongshu over about the last three months, from the platform's creator marketplace, with each day's notes about the keyword and how often they were shown, read and engaged with: 面膜. Call the call tool with {"op":"xiaohongshu.keyword_history","keyword":"面膜"}. Needed: keyword. For several, call it once for each: 24 credits each. 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.keyword_related (PGY related keywords). 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. ``` ## The same call on other platforms | Interface | Price key | Credits | | --- | --- | --- | | [Douyin trend-index keyword trends API](https://socialtoai.com/douyin-keyword-history-api.md) | `douyin.keyword_history` | 4 | | [WeChat Index API](https://socialtoai.com/wechat-keyword-history-api.md) | `wechat.keyword_history` | 60 | ## More on Xiaohongshu | Interface | What it does | Price key | Credits | | --- | --- | --- | --- | | [Xiaohongshu (RedNote) product search API](https://socialtoai.com/xiaohongshu-product-search-api.md) | Search the products of Xiaohongshu's shop by terms. | `xiaohongshu.product_search` | 12 | | [Xiaohongshu (RedNote) KOL metrics API (Pugongying)](https://socialtoai.com/xiaohongshu-kol-performance-api.md) | Get how a Xiaohongshu creator's everyday notes did over the last 30 or 90 days, by PGY creator ID. | `xiaohongshu.kol_performance` | 24 | | [Xiaohongshu (RedNote) topic notes API](https://socialtoai.com/xiaohongshu-topic-notes-api.md) | Get the trending notes under a Xiaohongshu topic by its page ID. | `xiaohongshu.topic_notes` | 12 | | [Xiaohongshu (RedNote) topic detail API](https://socialtoai.com/xiaohongshu-topic-api.md) | Get one Xiaohongshu topic by its page ID. | `xiaohongshu.topic` | 12 | | [Xiaohongshu (RedNote) Search API](https://socialtoai.com/xiaohongshu-search-api.md) | Find notes by keyword: text, author, likes, comment count and publish time. | `xiaohongshu.search` | 12 | | [Xiaohongshu (RedNote) product reviews API](https://socialtoai.com/xiaohongshu-product-reviews-api.md) | Get the first page of buyers' reviews of a product of Xiaohongshu's shop by the product's ID. | `xiaohongshu.product_reviews` | 12 | | [Xiaohongshu (RedNote) Detail API](https://socialtoai.com/xiaohongshu-detail-api.md) | One note by ID or link: text, author, likes, comment count and publish time. | `xiaohongshu.detail` | 12 | | [Xiaohongshu (RedNote) User Profile API](https://socialtoai.com/xiaohongshu-user-profile-api.md) | One account: name, bio, followers, following and post count. | `xiaohongshu.user_profile` | 12 | | [Xiaohongshu (RedNote) Pugongying related keywords API](https://socialtoai.com/xiaohongshu-keyword-related-api.md) | Get what people search on Xiaohongshu before and after a keyword, from the platform's creator marketplace, each with its place by relevance, its search index, the notes about it and their reads. | `xiaohongshu.keyword_related` | 24 | | [Xiaohongshu (RedNote) Trending API](https://socialtoai.com/xiaohongshu-trending-api.md) | What is trending now: title, rank and heat. | `xiaohongshu.trending` | 12 | ## Read next - [Xiaohongshu official API: access, prices and limits](https://socialtoai.com/does-xiaohongshu-have-an-api.md): What its own API allows, who can use it and what it costs, with sources. - [How to let ChatGPT read Xiaohongshu (RedNote)](https://socialtoai.com/how-to/let-chatgpt-read-xiaohongshu.md): connect ChatGPT to Xiaohongshu notes and comments - [Let Claude Code and Cursor read Xiaohongshu and Douyin, with no QR code or cookie](https://socialtoai.com/how-to/let-claude-code-and-cursor-read-xiaohongshu-and-douyin.md): 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](https://socialtoai.com/how-to/monitor-xiaohongshu-douyin-weibo-from-outside-china.md): monitor Xiaohongshu, Douyin and Weibo from outside China with AI, in English, with original links - [Xiaohongshu (RedNote) MCP server](https://socialtoai.com/mcp/xiaohongshu.md): Let your AI read Xiaohongshu. ## Xiaohongshu (RedNote) Pugongying keyword search index API: questions **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. **How much does one call return?** One call returns one object, with no pages, for 24 credits. **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.