# Get analytics expression vocabulary

**GET** `/v1/query/analytics-vocabulary`

**Operation ID**: `getAnalyticsVocabulary`
**Summary**: Get analytics expression vocabulary
Returns parser-approved expression functions and logical log fields. With a dataset, includes that dataset's promoted logs_raw tag keys.

## Tags
- Query Parsing
## Parameters

- **datasetId** (optional) - query
  - Dataset whose promoted logs_raw tags should be included.
  - Type: string

## Responses

### 200

Analytics vocabulary returned successfully.

- **Content-Type**: `application/json` / `AnalyticsVocabularyResponse`
### 401

Unauthorized