/v1/call/wechat.keyword_historyWeChat Index API
Only on WeChat Articles.
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.
Last updated:
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
What you get from the WeChat Index API.
From a recorded answer.
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
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" }'import osimport uuidimport requestsresponse = 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())# Connected over MCP? Ask in plain words.Use the WeChat Index interface (wechat.keyword_history) with keyword: 咖啡.# Your AI calls the call tool with:{ "keyword": "咖啡"}{ "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 }, "cost_credits": 60}- entry_type
- keyword_history
Names and text were removed from the sample; the numbers are as recorded.
WeChat Index API parameters.
1 parameter, all required.
Send them as a JSON body with POST. Your key goes in the Authorization header, never in the URL.
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
| keyword | string | Required | — | One keyword |
WeChat Index API response fields.
What WeChat Articles cannot give is marked.
| Field | Type | Meaning |
|---|---|---|
| items[].title | string | The entry's title or name. |
| items[].url | string | A link that opens it; null where the platform's list has none. |
| items[].rank | integer | Position on a board, from 1. |
| items[].heat | integer | The platform's heat score. |
| items[].fields.points | array | One entry per day, oldest first: date, search_index, composite_index, notes, impressions, views, engagements.search_index, notes, impressions, views, engagements: always null here |
nullFields WeChat Articles cannot giveRead null as “WeChat Articles did not give this”, not as zero. These are always null on this call:
fields.points.search_indexOne entry per day, oldest first: date, search_index, composite_index, notes, impressions, views, engagements.fields.points.notesOne entry per day, oldest first: date, search_index, composite_index, notes, impressions, views, engagements.fields.points.impressionsOne entry per day, oldest first: date, search_index, composite_index, notes, impressions, views, engagements.fields.points.viewsOne entry per day, oldest first: date, search_index, composite_index, notes, impressions, views, engagements.fields.points.engagementsOne entry per day, oldest first: date, search_index, composite_index, notes, impressions, views, engagements.
Every item also has platform, id, ref, approx and type; the response around the items is the same on every call. Response format
WeChat Index API: paging and billing.
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
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.
60 creditscall {"op":"wechat.keyword_history","keyword":"咖啡"}
Give this to your AI.
Copy it into Claude or ChatGPT.
How to connectUse 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.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.
The interface of the same name on other platforms.
All platforms and prices/v1/call/wechat.keyword_history{ "keyword": "咖啡" }60 creditsper callRead next.
What its own API allows, who can use it and what it costs, with sources.
let your AI read WeChat Official Account articles
turn WeChat Official Account articles into a private RSS feed, or push them to Feishu and WeCom
Let your AI read WeChat Articles.