401 in company search API

This thread is to inquire about how to access the company house API using the API KEY.

I have followed the documentation but are unable to call the API. Please check the attached screenshots and let us know what I am missing.

getting Invalid Authorization, in development application.

I have now configured localhost from /etc/hosts and and made it work but not getting any data.
https://api-sandbox.company-information.service.gov.uk/search?q=umbrella
{
“status”: “success”,
“message”: “Company PSC data retrieved successfully”,
“data”: {
“company_number”: “umbrella”,
“psc_names”: ,
“full_data”: {
“start_index”: 0,
“total_results”: 0,
“page_number”: 1,
“kind”: “search#all”,
“items”: ,
“items_per_page”: 20
}
}
}