# Douyin Webcast ID to Room ID API

> Converts a Douyin webcast ID into its corresponding room ID. Submit a webcast ID to retrieve the matching livestream room identifier for Douyin web workflows.

Source: https://www.sandbase.ai/model/douyin/web/webcast-id-2-room-id
API reference: https://www.sandbase.ai/model/douyin/web/webcast-id-2-room-id/docs

## Facts

- Provider: Douyin
- Type: Data API
- Endpoint: `POST https://api.sandbase.ai/v1/api/douyin/web/webcast-id-2-room-id`
- 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/web/webcast-id-2-room-id` with `Authorization: Bearer $SANDBASE_API_KEY` and the parameters as a JSON body.

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

## FAQ

### How do I use the Douyin Webcast ID to Room ID API?

Send a POST request to https://api.sandbase.ai/v1/api/douyin/web/webcast-id-2-room-id 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 Webcast ID to Room ID 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 Webcast ID to Room ID API accept?

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

### What does the Douyin Webcast ID to Room ID API return?

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

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

No. Douyin Webcast ID to Room ID 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 Webcast ID to Room ID API

Look up a Douyin room ID by providing a `webcast_id`. This endpoint maps a Douyin webcast identifier to its associated livestream room ID.

#### Use cases

- Resolve a webcast ID into a livestream room ID for downstream Douyin web queries.
- Normalize live broadcast identifiers across Douyin monitoring workflows.
- Match external webcast links to internal Douyin room identifiers.

#### Request

```bash
curl -X POST "https://api.sandbase.ai/v1/api/douyin/web/webcast-id-2-room-id" \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"webcast_id": "<webcast_id>"}'
```

#### Parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `webcast_id` | string | Yes | Webcast id |

#### Notes

- Requires a valid `webcast_id` string.

#### Related APIs

- [Douyin Batch Video ID Extraction](/model/douyin/web/all-aweme-id): Extracts video IDs from a list of Douyin video URLs.
- [Douyin sec_user_ids from URLs (Batch)](/model/douyin/web/all-sec-user-id): Extracts Douyin sec_user_id values in bulk from a list of user homepage URLs.
- [Douyin Webcast ID Extraction](/model/douyin/web/all-webcast-id): Extracts webcast IDs from a submitted list of Douyin live room links.