# Douyin Index Keyword Valid Dates API

> Returns the valid date ranges available for specified search terms in the Douyin Index. Queries accept a comma-separated list of keywords to identify data availability periods.

Source: https://www.sandbase.ai/model/douyin/index/keyword-valid-date
API reference: https://www.sandbase.ai/model/douyin/index/keyword-valid-date/docs

## Facts

- Provider: Douyin
- Type: Data API
- Endpoint: `POST https://api.sandbase.ai/v1/api/douyin/index/keyword-valid-date`
- Price: $0.0015 per call
- Free allowance: 100 calls per organization per UTC day, shared across eligible APIs
- Capabilities: api, douyin
- Billing: pay per use from one SandBase balance; no provider account or subscription needed

## Call it

`POST https://api.sandbase.ai/v1/api/douyin/index/keyword-valid-date` with `Authorization: Bearer $SANDBASE_API_KEY` and the parameters as a JSON body.

| Parameter | Type | Required | Allowed values |
| --- | --- | --- | --- |
| `keyword_list` | string | yes |  |

## FAQ

### How do I use the Douyin Index Keyword Valid Dates API?

Send a POST request to https://api.sandbase.ai/v1/api/douyin/index/keyword-valid-date with your SandBase API key in the Authorization header (Bearer) and the parameters as a JSON body. You can also try it in the Playground on this page without writing code.

### How much does the Douyin Index Keyword Valid Dates API cost?

$0.0015 per call. Every organization gets 100 free calls per UTC day, shared across eligible SandBase APIs including this one; after that each call is billed at this price from your SandBase balance. There is no subscription.

### What parameters does the Douyin Index Keyword Valid Dates API accept?

Required: keyword_list (string). The Parameters table and the Playground on this page list every field.

### What does the Douyin Index Keyword Valid Dates API return?

A JSON response returned in the same HTTP request (synchronous).

### Do I need a Douyin developer account or API key?

No. Douyin Index Keyword Valid Dates runs through SandBase, so one SandBase API key covers this endpoint and every other API and model in the catalog. You do not need to apply for Douyin API access separately.

## README

### Douyin Index Keyword Valid Dates API

Use this endpoint to inspect the available Douyin Index date ranges for search terms provided via `keyword_list`.

#### Use cases

- Check historical data availability before querying keyword index metrics.
- Verify valid date boundaries for multiple tracking keywords in batch.
- Align analytics date pickers with active Douyin Index time windows.

#### Request

```bash
curl -X POST "https://api.sandbase.ai/v1/api/douyin/index/keyword-valid-date" \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"keyword_list": "人工智能"}'
```

#### Parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `keyword_list` | string | Yes | Keyword list, comma separated |

#### Notes

- Accepts multiple terms supplied as a comma-separated string in `keyword_list`.

#### Related APIs

- [Douyin Index Area List](/model/douyin/index/all-area): Returns the complete list of supported geographic areas available for Douyin Index queries.
- [Douyin Index Valid Dates](/model/douyin/index/all-valid-date): Returns the latest valid dates available for each data type in Douyin Index.
- [Douyin Brand Popularity Cycles](/model/douyin/index/brand-cycles): Returns periodic brand popularity and cycle analysis data across platforms for a specified brand name and date range.