const providerName = 'WEX';

const response = await fetch(`https://service.pcibooking.net/api/VirtualCard/${providerName}`);

const data = await response.json();
console.log(data);

import requests

provider_name = 'WEX'

response = requests.get(
    f'https://service.pcibooking.net/api/VirtualCard/{provider_name}'
)

print(response.json())

{
    "Name": "WEX",
    "CredentialsNames": [
        "MerchantID",
        "SharedSecret",
        "Account",
        "RebatePWD"
    ],
    "ProviderUrl": "https://www.wexinc.com"
}

Virtual card provider with name [InvalidName] not found