Douyin Hashtag search API

POST

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Find Douyin hashtags whose names contain a keyword, ranked by heat. Each hashtag has its numeric ID, a heat index and the videos, likes and views it gathered over the last 7 full days in China time, with the period dates on every row. Up to 200 hashtags per call, 20 by default; pass hashtag_id to hashtag_detail for all-time totals.

Price $15.56 per 1,000 requests ($0.01556 per call). Failed calls and empty results are not charged. Synchronous. For slow jobs add "mode": "async" to the body, take the job_id and poll.

AI prompt

Paste this into your AI assistant. It already holds this endpoint's parameters, response fields and an example request, so the assistant can ask what you need and then write the scraper.

Please help me write a data collection script with the EveryInfra Douyin Hashtag search endpoint (douyin/hashtag_search).

How the endpoint works:
- Request: POST https://api.everyinfra.com/api/v1/social with the header Authorization: Bearer <API key>. Read the key from the EVERYINFRA_API_KEY environment variable and never hard-code it.
- In the request body, set platform to douyin and action to hashtag_search, and put the parameters inside params.
- Required parameters:
  - keyword: The word to look for in Douyin hashtag names, such as food; Chinese terms usually match more hashtags. It finds hashtags, not videos.
- Optional parameters:
  - limit: The most rows to return in this call, an integer from 1 to 200. The default applies when you leave it out, and a call can return fewer rows. Larger values return 422 before any charge. (default: 20)
- Returns a list of records. Main fields of each record: hashtag_id (Hashtag ID (a digit string)), hashtag_name (Hashtag name, without the #), search_rank, heat_index (The hashtag's heat index over the perio…), period_video_count (Videos posted under the hashtag during…), period_like_count (Likes the hashtag's videos received dur…), period_view_count (Views of the hashtag's videos during th…), period_start (First day of the period, YYYY-MM-DD (ha…), period_end (Last day of the period, YYYY-MM-DD (has…).
- Example request body:
{
  "platform": "douyin",
  "action": "hashtag_search",
  "params": {
    "keyword": "美食"
  }
}
- Price: $15.56 per 1,000 requests; failed and empty results are not charged.
- For dozens or hundreds of targets, add "mode": "async" to the body: you get a job_id at once and poll GET https://api.everyinfra.com/api/v1/jobs/{job_id} for the result.
- On 422, fix the request using the suggested parameter names and allowed values in the error; on 429 or 503, wait for Retry-After and try again.

Before writing code, ask me which targets I need, how many, which fields, and what output format I want; then confirm the plan and the rough cost with me.

Request parameters

Name	In	Type	Required	Default	Description
`Authorization`	header	`string`	Yes	-	Bearer followed by your API key. Create it in the console; never put it in a URL or a code repository.
`platform`	body	`string`	Yes	`douyin`	Platform identifier, fixed value.
`action`	body	`string`	Yes	`hashtag_search`	Capability identifier, fixed value.
`keyword`	body.params	`string`	Yes	-	The word to look for in Douyin hashtag names, such as `food`; Chinese terms usually match more hashtags. It finds hashtags, not videos.
`limit`	body.params	`integer (1–200)`	No	`20`	The most rows to return in this call, an integer from 1 to 200. The default applies when you leave it out, and a call can return fewer rows. Larger values return 422 before any charge.

Code samples

bash

curl -X POST 'https://api.everyinfra.com/api/v1/social' \
  -H "Authorization: Bearer $EVERYINFRA_API_KEY" \
  -H 'Content-Type: application/json' \
  --data-raw '{
  "platform": "douyin",
  "action": "hashtag_search",
  "params": {
    "keyword": "美食"
  }
}'

OpenAPI definition (JSON)Samples read the key from the EVERYINFRA_API_KEY environment variable; copied code never contains your key.

Response example

Field preview

No sample response is available for these parameters yet. This preview shows the response shape and fields from the API definition, with … as placeholders; it is not the result of a live call.

json

{
  "id": "req_…",
  "platform": "douyin",
  "action": "hashtag_search",
  "results": [
    {
      "hashtag_id": …,
      "hashtag_name": …,
      "search_rank": …,
      "heat_index": …,
      "period_video_count": …,
      "period_like_count": …,
      "period_view_count": …,
      "period_start": …,
      "period_end": …,
      "platform": …
    }
  ],
  "count": …,
  "billing": {
    "charged": …,
    "charged_usd": …,
    "balance_after_usd": …,
    …
  },
  "quota": { … }
}

Response fields

Business data is in results. The table lists the fields a record can contain; values the platform does not show are never made up.

Field	Meaning
`hashtag_id`	Hashtag ID (a digit string); pass it as `hashtag_id` to hashtag_detail.
`hashtag_name`	Hashtag name, without the #.
`search_rank`	Keeps the platform's own meaning
`heat_index`	The hashtag's heat index over the period (hashtag_search), a Douyin metric to compare only within one result.
`period_video_count`	Videos posted under the hashtag during the period (hashtag_search).
`period_like_count`	Likes the hashtag's videos received during the period (hashtag_search).
`period_view_count`	Views of the hashtag's videos during the period (hashtag_search), as counted by the platform.
`period_start`	First day of the period, YYYY-MM-DD (hashtag_search); always the last 7 full days up to yesterday in China time.
`period_end`	Last day of the period, YYYY-MM-DD (hashtag_search): yesterday in China time.
`platform`	Source platform identifier, the same as platform in the request (for example xiaohongshu, tiktok).

Errors and billing

401: Missing or invalid key.
402: Insufficient balance. Top up first.
422: Invalid parameter name or value. Fix it using the suggestions in the error. No charge.
429: Per-minute request limit reached. Wait for Retry-After, then try again.
503: Could not complete. The held charge is returned to your balance. If the outcome is unknown, verify it before you retry.
200 empty: No data. No charge.

Errors