--- title: "WeChat Index API · SocialToAI" canonical: https://socialtoai.com/wechat-keyword-history-api/ updated: 2026-10-30 --- # WeChat Index API Get a keyword's WeChat Index over the last 30 days, one figure a day. The WeChat Index is WeChat's score of attention across its search, articles, Moments and more, not a count of searches, and is not comparable with Douyin's or Xiaohongshu's; days are calendar days in China time (UTC+8). A call to the WeChat Index API costs 60 credits ($0.12 to $0.20 depending on the pack); failed calls are free. - Page: https://socialtoai.com/wechat-keyword-history-api/ - Last updated: 2026-10-30 | Request | Price key | Credits | | --- | --- | --- | | `POST /v1/call/wechat.keyword_history` | `wechat.keyword_history` | 60 | Daily watch: tell your AI “watch this daily” and this call runs by itself every day, sending only what is new: at most 1,860 credits a month, about $6.20. [How to set it up](https://socialtoai.com/docs/schedules.md#watch) ## What you get from the WeChat Index API A recorded call returned 1 item; here is the first, field by field. Names and text are removed from the sample; the numbers are as recorded. | Field | In the recorded answer | | --- | --- | | title | 露营 | | url | null | | rank | null | | heat | null | | fields.points | 7 entries | 60 credits a call (≈ $0.12–$0.20): about 50 calls for $10. ## WeChat Index API: request and response ```bash curl https://api.socialtoai.com/v1/call/wechat.keyword_history \ -H "Authorization: Bearer $SOCIALTOAI_API_KEY" \ -H "Idempotency-Key: $(uuidgen)" \ -H "Content-Type: application/json" \ -d '{ "keyword": "咖啡" }' ``` ```python import os import uuid import requests response = requests.post( "https://api.socialtoai.com/v1/call/wechat.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": "咖啡", }, ) print(response.json()) ``` ## WeChat Index API parameters | Name | Type | Required | Default | Description | | --- | --- | --- | --- | --- | | `keyword` | string | Required | — | One keyword | First page only: up to 1 items, with no cursor parameter and no next page. ## WeChat 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; search_index, notes, impressions, views, engagements 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": "2026-10-29T09:49:49.000Z", "action": "call", "op": "wechat.keyword_history", "platform": "wechat", "status": "ok", "items": [ { "platform": "wechat", "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": "2026-09-29T00:00:00.000Z", "search_index": null, "composite_index": 38626358, "notes": null, "impressions": null, "views": null, "engagements": null }, { "date": "2026-09-30T00:00:00.000Z", "search_index": null, "composite_index": 35843833, "notes": null, "impressions": null, "views": null, "engagements": null }, { "date": "2026-10-01T00:00:00.000Z", "search_index": null, "composite_index": 38536619, "notes": null, "impressions": null, "views": null, "engagements": null }, { "date": "2026-10-02T00:00:00.000Z", "search_index": null, "composite_index": 43998859, "notes": null, "impressions": null, "views": null, "engagements": null }, { "date": "2026-10-03T00:00:00.000Z", "search_index": null, "composite_index": 51530144, "notes": null, "impressions": null, "views": null, "engagements": null }, { "date": "2026-10-04T00:00:00.000Z", "search_index": null, "composite_index": 47706506, "notes": null, "impressions": null, "views": null, "engagements": null }, { "date": "2026-10-05T00:00:00.000Z", "search_index": null, "composite_index": 52354075, "notes": null, "impressions": null, "views": null, "engagements": null } ] } } ], "unavailable": ["fields.points.search_index", "fields.points.notes", "fields.points.impressions", "fields.points.views", "fields.points.engagements"], "page": { "has_more": false }, "warnings": [], "applied_params": { "keyword": "咖啡" }, "cost_credits": 60, "billing": { "cost_credits": 60, "balance_credits": 40, "today_spend_credits": 60, "daily_limit_credits": null, "daily_remaining_credits": null, "display": "This call: 60 credits (≈ $0.20). Balance: 40 credits (≈ $0.13)." }, "replayed": false } ``` ## WeChat Index API: paging and billing - One call returns the first page only, up to 1 items, with no cursor, for 60 credits. - A call that runs and finds nothing is a successful call: status is "empty", items is empty, and it costs 60 credits. - On this call WeChat Articles cannot tell a article 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](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 WeChat Index API - Get a keyword's WeChat Index over the last 30 days, one figure a day: 咖啡. → `call {"op":"wechat.keyword_history","keyword":"咖啡"}`, 60 credits ## Give this to your AI ``` Use the SocialToAI MCP server (https://mcp.socialtoai.com/mcp) for this: Get a keyword's WeChat Index over the last 30 days, one figure a day: 咖啡. Call the call tool with {"op":"wechat.keyword_history","keyword":"咖啡"}. Needed: keyword. It gives its first page only, up to 1 items, with no next page; each call costs 60 credits. 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. ``` ## The same call on other platforms | Interface | Price key | Credits | | --- | --- | --- | | [Xiaohongshu (RedNote) Pugongying keyword search index API](https://socialtoai.com/xiaohongshu-keyword-history-api.md) | `xiaohongshu.keyword_history` | 24 | | [Douyin trend-index keyword trends API](https://socialtoai.com/douyin-keyword-history-api.md) | `douyin.keyword_history` | 4 | ## More on WeChat Articles | Interface | What it does | Price key | Credits | | --- | --- | --- | --- | | [WeChat Search suggestions API](https://socialtoai.com/wechat-keyword-related-api.md) | Get the suggestions WeChat Search lists in its search box for a keyword, in the order it lists them, about 10 at a time. | `wechat.keyword_related` | 60 | | [WeChat Official Account owner API](https://socialtoai.com/wechat-account-owner-api.md) | Get who a WeChat Official Account is registered to, by its original ID. | `wechat.account_owner` | 60 | | [WeChat Articles Search API](https://socialtoai.com/wechat-search-api.md) | Find articles by keyword: text, author, likes and publish time. | `wechat.search` | 12 | | [WeChat Articles Detail API](https://socialtoai.com/wechat-detail-api.md) | One article by link: text, author and publish time. | `wechat.detail` | 12 | | [WeChat Articles Comments API](https://socialtoai.com/wechat-comments-api.md) | The comments under one article: text, likes, reply count and time. | `wechat.comments` | 12 | | [WeChat Articles User Profile API](https://socialtoai.com/wechat-user-profile-api.md) | One account: name. | `wechat.user_profile` | 12 | | [WeChat Articles User Posts API](https://socialtoai.com/wechat-user-posts-api.md) | The recent articles of one account. | `wechat.user_posts` | 12 | | [WeChat Official Account article stats API](https://socialtoai.com/wechat-article-stats-api.md) | Get the current counts of a WeChat Official Account article by its long link. | `wechat.article_stats` | 12 | | [WeChat mini program search API](https://socialtoai.com/wechat-miniprogram-search-api.md) | Find WeChat mini programs for search terms through WeChat Search, the first page (about 25). | `wechat.miniprogram_search` | 60 | ## Read next - [WeChat Articles official API: access, prices and limits](https://socialtoai.com/does-wechat-have-an-api.md): What its own API allows, who can use it and what it costs, with sources. - [How to let AI read WeChat Official Account articles](https://socialtoai.com/how-to/let-ai-read-wechat-articles.md): let your AI read WeChat Official Account articles - [Turn WeChat Official Account articles into RSS, or push them to Feishu and WeCom](https://socialtoai.com/how-to/wechat-official-account-to-rss-feishu-wecom.md): turn WeChat Official Account articles into a private RSS feed, or push them to Feishu and WeCom - [WeChat Articles MCP server](https://socialtoai.com/mcp/wechat.md): Let your AI read WeChat Articles. ## WeChat Index API: questions **Do I need a WeChat Articles account or WeChat Articles's own API access?** No. You only need a SocialToAI key. The call returns content and account information publicly visible on WeChat Articles; you never sign in to WeChat Articles or apply for anything there. **Can I get the next page?** No. On WeChat Articles this interface gives its first page only (up to 1 items): the response carries no cursor, and page.has_more is always false. **What does one call cost in dollars?** 60 credits: $0.20 at 300 credits per dollar (purchases from $10), $0.12 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 60 credits. This interface cannot tell a target that does not exist from one with no data, so both are charged as empty. **How much does one call return?** One call returns the first page only, up to 1 items, with no cursor, for 60 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.