## Add Watchlist Item

**post** `/v1/watchlists/{watchlist_id}/items`

Add an instrument to a watchlist

### Path Parameters

- `watchlist_id: string`

### Body Parameters

- `instrument_id: InstrumentIDOrSymbol`

  OEMS instrument UUID

### Returns

- `data: AddWatchlistItemData`

  Response data for adding a watchlist item

  - `item_id: string`

    ID of the created item

### Example

```http
curl https://api.clearstreet.com/v1/watchlists/$WATCHLIST_ID/items \
    -H 'Content-Type: application/json' \
    -H "Authorization: Bearer $API_KEY" \
    -d '{
          "instrument_id": "182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e"
        }'
```

#### Response

```json
{
  "data": {
    "item_id": "770e8400-e29b-41d4-a716-446655440002"
  },
  "error": null,
  "metadata": {
    "request_id": "b2c3d4e5-f6a7-8901-2345-678901bcdefg"
  }
}
```