## Add Watchlist Item `$ clear-street v1:watchlist add-watchlist-item` **post** `/v1/watchlists/{watchlist_id}/items` Add an instrument to a watchlist ### Parameters - `--watchlist-id: string` Watchlist ID - `--instrument-id: string` OEMS instrument UUID ### Returns - `V1WatchlistAddWatchlistItemResponse: BaseResponse` - `data: object { item_id }` Response data for adding a watchlist item - `item_id: string` ID of the created item ### Example ```cli clear-street v1:watchlist add-watchlist-item \ --api-key 'My API Key' \ --watchlist-id 550e8400-e29b-41d4-a716-446655440000 \ --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" } } ```