DouyinSocial mediaDouyin Ocean Engine index API
Douyin index: related keywords API
Keywords related to one keyword on Douyin in one week, from 巨量算数: those searched together with it and those that appear with it in videos, each with relevance, its place by relevance, search index and composite index. An index is the platform’s score, not a count.
GEThttps://api.okdata.online/v1/douyin/index/keywords/related
Also calleddouyin related searchesdouyin keyword expansion
- Price
- $0.002
- per call · failed calls are free
- Returns
- A list of KeywordRelated
- 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
- preview
- It may still change; any change is announced beforehand.
Parameters
| Name | Type | Description |
|---|---|---|
keywordrequired | string | One keyword; letter case does not matter. |
untilrequired | string | Which week: relations come by the week (Monday to Sunday, China time), and the answer is the last whole week ending on or before this day. A week is published early the next; before that the list is empty. |
view | stringcompactstandardfull | How much of each object comes back. full adds platform-specific fields under ext. |
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/douyin/index/keywords/related" \
-H "Authorization: Bearer $OKDATA_API_KEY" \
--data-urlencode 'keyword=露营' \
--data-urlencode 'until=2026-11-08T00:00:00Z'Python
import os
import requests
resp = requests.get(
"https://api.okdata.online/v1/douyin/index/keywords/related",
headers={"Authorization": f"Bearer {os.environ['OKDATA_API_KEY']}"},
params={"keyword": "露营", "until": "2026-11-08T00:00:00Z"},
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/douyin/index/keywords/related');
url.searchParams.set('keyword', "露营");
url.searchParams.set('until', "2026-11-08T00:00:00Z");
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": "douyin.index.keywords.related",
"keyword": "露营",
"until": "2026-11-08T00:00:00Z"
}
}Response
{
"code": "ok",
"request_id": "0f6c2a8e-4b1d-4e0a-9a51-3c7d2b9e1f20",
"data": {
"items": [
{
"keyword": null,
"related_to": null,
"relation": null,
"rank": null,
"relevance": null,
"search_index": null,
"composite_index": null
}
]
},
"page": {
"next_cursor": "eyJvIjoyMH0",
"has_more": true
},
"warnings": [],
"meta": {
"capability": "douyin.index.keywords.related",
"billing": {
"amount": "0.002",
"currency": "USD",
"balance_after": "9.998"
},
"unavailable": {},
"cached": false,
"replayed": false,
"fetched_at": "2026-11-11T08:00:00Z"
}
}Try it
This sends a real call to https://api.okdata.online and is billed as usual: at most $0.002. Failed calls are free. Your key goes only to that address and is never stored on this site.
Known limits
- The whole list comes in one answer; there is no next page.
Returned fields
data.items is a list of KeywordRelated.
| Field | Type | View | Description |
|---|---|---|---|
keyword | string | compact | The related keyword. |
related_to | string | compact | The keyword asked about. |
relation | string | null | compact | How it relates: searched together (query), appears together in content (posts), searched before (prior) or after (after), or suggested as you type (suggestion). |
rank | integer | null | compact | Position among the keywords of the same relation, from 1. |
relevance | number | null | compact | How closely it is related, 0 to 1. |
search_index | integer | null | compact | Its search index (the platform's measure, not a count); null where the platform gives none. |
Show all 8 fieldsHide the other 2
| Field | Type | View | Description |
|---|---|---|---|
composite_index | integer | null | compact | Its composite index (the platform's measure of attention, not a count). |
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 $0.002 and returns one page of about 170 results. Collecting 1,000 results takes about 6 calls, $0.012 in total. Each page is a separate call; failed calls are not charged.
Data comes back$0.002 per call
Bad parameters, errors, timeoutsFree
| When | Charge |
|---|---|
| Most one call costs | $0.002 |
| An empty answer | $0.002 |
| 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 $0.002; 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 |
Questions
How much does the Douyin index: related keywords API cost?
One call costs $0.002 and returns one page of about 170 results. Collecting 1,000 results takes about 6 calls, $0.012 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 $0.002.
Do I need a Douyin account, cookies or a QR login?
No. You send only your okdata API key. The data is public data from Douyin; nothing is fetched with your own Douyin 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 Douyin 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).
Use it in your AI
Paste this into Claude, ChatGPT, Cursor or any agent that can open a web page. It reads this endpoint’s page and calls it with your key.
Read https://okdata.online/apis/douyin/index/keywords/related.md, then call this endpoint for me through okdata; my key is in the OKDATA_API_KEY environment variable. Use Douyin index: related keywords and sum up what comes back.
With the MCP server connected, just ask: Use Douyin index: related keywords and sum up what comes back.
All 38 Douyin endpoints
Douyin Ocean Engine index API
- Douyin index: brand trends$0.002/call
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- Douyin index: account followers$0.002/call
- Douyin index: account daily averages$0.002/call
- Douyin index: keyword audience$0.002/call
- Douyin index: keyword trends$0.006/call
- Douyin index: live hot topics$0.002/call
- Douyin index: top videos for a keyword$0.002/call
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Douyin Xingtu API
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- Douyin Xingtu creator reach$0.004/call
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- Douyin Xingtu creator keywords$0.002/call
- Douyin Xingtu creator scores$0.008/call
- Douyin Xingtu creator content mix$0.004/call
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Names and ID
- Name
- Douyin index: related keywords API
- Short name
- Douyin index: related keywords
- ID
douyin.index.keywords.related- Endpoint
GET /v1/douyin/index/keywords/related- Category
- Social media
- Also called
- douyin related searches, douyin keyword expansion
- Returns
- KeywordRelated[]: 8 fields