WeChat Search Social mediaComing soon

WeChat Index API

A keyword's WeChat Index over the last 30 days, one figure a day (points[].composite_index). The index is WeChat's attention score across Search, articles, Moments and more, not a count of searches, and does not compare with Douyin's or Xiaohongshu's; days are China calendar days (UTC+8).

GEThttps://api.okdata.online/v1/wechat/index/keywords/history

Also calledwechat indexweixin indexwechat keyword popularity trend

Price: $0.15; per call · failed calls are free
Returns: A list of KeywordHistory; the whole list in one answer
If a call fails: Not charged; When a data source fails, the next one is tried; errors and timeouts cost nothing.
Status: coming soon; Listed but not callable yet: a call answers capability_paused and is not charged.

Parameters

Name	Type	Description
`keyword`required	string	One keyword. e.g. `咖啡`
`view`	stringcompactstandardfull	How much of each object comes back. full adds platform-specific fields under ext. default `standard`
`fields`	string[]	Fields to keep, by path (author.name), to save tokens. In a query string: comma-separated.

cursor, view and fields work the same on every endpoint: how requests work.

Request

cURL

curl -G "https://api.okdata.online/v1/wechat/index/keywords/history" \
  -H "Authorization: Bearer $OKDATA_API_KEY" \
  --data-urlencode 'keyword=咖啡'

Python

import os
import requests

resp = requests.get(
    "https://api.okdata.online/v1/wechat/index/keywords/history",
    headers={"Authorization": f"Bearer {os.environ['OKDATA_API_KEY']}"},
    params={"keyword": "咖啡"},
    timeout=60,
)
body = resp.json()
if body["code"] != "ok":
    raise RuntimeError(f"{body['code']}: {body['message']} (charged: {body['charged']})")

for row in body["data"]["items"]:
    print(row)
print("cost: $" + body["meta"]["billing"]["amount"])

TypeScript

const url = new URL('https://api.okdata.online/v1/wechat/index/keywords/history');
url.searchParams.set('keyword', "咖啡");

const res = await fetch(url, {
  headers: {
    Authorization: `Bearer ${process.env.OKDATA_API_KEY}`,
  },
});
const body = await res.json();
if (body.code !== 'ok') throw new Error(`${body.code}: ${body.message}`);

for (const row of body.data.items) {
  console.log(row);
}
console.log('cost: $' + body.meta.billing.amount);

MCPtools/call

{
  "name": "call",
  "arguments": {
    "capability": "wechat.index.keywords.history",
    "keyword": "咖啡"
  }
}

Response

200 · application/jsonmeta.billing.amount = 0.15

{
  "code": "ok",
  "request_id": "0f6c2a8e-4b1d-4e0a-9a51-3c7d2b9e1f20",
  "data": {
    "items": [
      {
        "keyword": null,
        "points": [
          {
            "date": null,
            "search_index": null,
            "composite_index": null,
            "notes": null,
            "impressions": null,
            "views": null,
            "engagements": null
          }
        ]
      }
    ]
  },
  "page": {
    "next_cursor": "eyJvIjoyMH0",
    "has_more": true
  },
  "warnings": [],
  "meta": {
    "capability": "wechat.index.keywords.history",
    "billing": {
      "amount": "0.15",
      "currency": "USD",
      "balance_after": "9.85"
    },
    "unavailable": {},
    "cached": false,
    "replayed": false,
    "fetched_at": "2026-11-11T08:00:00Z"
  }
}

Coming soon

This endpoint is listed but not callable yet: a call answers capability_paused and is not charged. The parameters, fields and price on this page are the contract it will open with; the status page and the changelog say when it does.

Known limits

The whole list comes in one answer; there is no next page.

Returned fields

data.items is a list of KeywordHistory.

Field	Type	View	Description
`keyword`	string	compact	The keyword.
`points`	KeywordPoint[]	compact	One entry a day, oldest first.
`ext`	object	full	Platform-specific extras. Only returned with view=full.

The view column is the smallest view a field comes back in: compact returns only compact fields, standard adds the standard ones, full returns everything. The default is standard.

When it is charged

One call costs $0.15 and returns one page of about 1 results. Collecting 1,000 results takes about 1000 calls, $150.00 in total. Each page is a separate call; failed calls are not charged.

Data comes back$0.15 per call

Bad parameters, errors, timeoutsFree

When	Charge
Most one call costs	$0.15
An empty answer	$0.15
Bad parameters, errors, timeouts	Free
A retry with the same Idempotency-Key within 24 hours	Charged once

A failed call is free; an empty answer costs $0.15; not found is free.

Prices from price book 1b273c48fea9634e. Every price on this platform →

Common errors

Every error has the same shape and says whether it was charged. The ones this endpoint can return:

HTTP	Code	Meaning	Charged
400	`invalid_params`	A parameter is missing, has the wrong type or value, or the method is wrong. problems lists each one; param names the first.Retry: after a fix	no
401	`unauthorized`	The key is missing, malformed, revoked, disabled or expired (reason says which when known).Retry: no	no
402	`insufficient_balance`	The balance (available) cannot cover the most this call could cost (required).Retry: after a fix	no
429	`rate_limited`	The account sent too many requests this minute (reason: rate) or has too many calls running (reason: concurrency).Retry: yes	no
500	`settlement_unknown`	The data came back, but the charge could not be confirmed.Retry: with the same Idempotency-Key	unknown until looked up
502	`upstream_failed`	Every data source for this endpoint failed on this request.Retry: yes	no
503	`capability_paused`	This endpoint is paused right now; nothing ran.Retry: yes	no
504	`timeout`	The data did not come back in time. The hold was released, so nothing was charged.Retry: yes	no

All error codes →

Questions

Can I call the WeChat Index API now?

How much does the WeChat Index API cost?

One call costs $0.15 and returns one page of about 1 results. Collecting 1,000 results takes about 1000 calls, $150.00 in total. Each page is a separate call; failed calls are not charged.

How do I get the next page?

Pass page.next_cursor from the response back as the cursor parameter. When page.has_more is false there is nothing left. Every page is its own call at $0.15.

Do I need a WeChat Search account, cookies or a QR login?

No. You send only your okdata API key. The data is public data from WeChat Search; nothing is fetched with your own WeChat Search account.

Am I charged when a call fails?

No. Every error response says charged: false, except a timeout, which says charged: null until the outcome is known. Resend with the same Idempotency-Key and you are never charged twice.

What if WeChat Search does not show a field?

The field is null, and meta.unavailable names it with the reason: platform (the platform never shows it) or capability (we cannot fetch it yet).

All 6 WeChat Search endpoints

Main WeChat Search endpoints

WeChat Search API overview →WeChat Search API pricing →

Names and ID

Name: WeChat Index API
Short name: WeChat Index
ID: wechat.index.keywords.history
Endpoint: GET /v1/wechat/index/keywords/history
Category: Social media
Also called: wechat index, weixin index, wechat keyword popularity trend
Returns: KeywordHistory[]: 3 fields