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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

NameTypeDescription
keywordrequiredstringOne keyword; letter case does not matter. e.g. 露营
untilrequiredstringWhich 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. e.g. 2026-11-08T00:00:00Z
viewstringcompactstandardfullHow much of each object comes back. full adds platform-specific fields under ext. default standard
fieldsstring[]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

200 · application/jsonmeta.billing.amount = 0.002
{
  "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.

FieldTypeViewDescription
keywordstringcompactThe related keyword.
related_tostringcompactThe keyword asked about.
relationstring | nullcompactHow it relates: searched together (query), appears together in content (posts), searched before (prior) or after (after), or suggested as you type (suggestion).
rankinteger | nullcompactPosition among the keywords of the same relation, from 1.
relevancenumber | nullcompactHow closely it is related, 0 to 1.
search_indexinteger | nullcompactIts search index (the platform's measure, not a count); null where the platform gives none.
Show all 8 fieldsHide the other 2
FieldTypeViewDescription
composite_indexinteger | nullcompactIts composite index (the platform's measure of attention, not a count).
extobjectfullPlatform-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

WhenCharge
Most one call costs$0.002
An empty answer$0.002
Bad parameters, errors, timeoutsFree
A retry with the same Idempotency-Key within 24 hoursCharged 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:

HTTPCodeMeaningCharged
400invalid_paramsA 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 fixno
401unauthorizedThe key is missing, malformed, revoked, disabled or expired (reason says which when known).Retry: nono
402insufficient_balanceThe balance (available) cannot cover the most this call could cost (required).Retry: after a fixno
429rate_limitedThe account sent too many requests this minute (reason: rate) or has too many calls running (reason: concurrency).Retry: yesno
500settlement_unknownThe data came back, but the charge could not be confirmed.Retry: with the same Idempotency-Keyunknown until looked up
502upstream_failedEvery data source for this endpoint failed on this request.Retry: yesno
503capability_pausedThis endpoint is paused right now; nothing ran.Retry: yesno
504timeoutThe data did not come back in time. The hold was released, so nothing was charged.Retry: yesno

All error codes →

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 API overview →Douyin API pricing →

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

Connect once, then just ask.

Every new key comes with $0.10 to try it. One sentence connects your agent.

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Connect your AI

Paste this into your agent

Read https://okdata.online/agents.md and set up okdata for me; my key is in the OKDATA_API_KEY environment variable.

Claude Code, Cursor, Codex and other agents that can open a link set themselves up from it.

MCP serverhttps://api.okdata.online/mcp