# Douyin Content Author Portrait API

> Returns demographic profiles of creators posting within a specific category, including gender, age, region, and activity times based on category ID and selected period.

Source: https://www.sandbase.ai/apis/douyin/index/content-author-portrait
API reference: https://www.sandbase.ai/apis/douyin/index/content-author-portrait/docs

## Facts

- Provider: Douyin
- Type: Data API
- Endpoint: `POST https://api.sandbase.ai/v1/api/douyin/index/content-author-portrait`
- 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/content-author-portrait` with `Authorization: Bearer $SANDBASE_API_KEY` and the parameters as a JSON body.

| Parameter | Type | Required | Allowed values |
| --- | --- | --- | --- |
| `end_date` | string | yes |  |
| `tag_id` | string | yes |  |
| `period` | string | no | week, month |

## FAQ

### How do I use the Douyin Content Author Portrait API?

Send a POST request to https://api.sandbase.ai/v1/api/douyin/index/content-author-portrait 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 Content Author Portrait 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 Content Author Portrait API accept?

Required: end_date (string) and tag_id (string). Optional: period (one of week, month). The Parameters table and the Playground on this page list every field.

### What does the Douyin Content Author Portrait API return?

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

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

No. Douyin Content Author Portrait 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 Content Author Portrait API

Query creator audience demographics for a specific category using `tag_id`, `end_date`, and `period`.

#### Use cases

- Analyze demographic distributions of creators posting in a target category.
- Inspect creator activity schedules across weekly or monthly intervals.
- Evaluate geographic and age profiles of authors for market research.

#### Request

```bash
curl -X POST "https://api.sandbase.ai/v1/api/douyin/index/content-author-portrait" \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"end_date": "1735660799", "tag_id": "2027"}'
```

#### Parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `tag_id` | string | Yes | Category ID (required, does NOT support 0=all, must pass a specific category ID) |
| `end_date` | string | Yes | End date YYYYMMDD, must align with period |
| `period` | string | No | "week" (end_date must be a Sunday) or "month" (end_date must be month-end, e.g. 20260331) |

#### Notes

- `tag_id` requires a specific category ID and does not accept 0 for all categories.
- `period` accepts either "week" or "month".
- `end_date` must align with `period` (a Sunday for weekly intervals or the last day of the month for monthly intervals).

#### 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.