import requests
import json

# ?format=json
URL = 'https://api.nbp.pl/api/cenyzlota'

headers = {
    "Accept": "application/json"
}

try:

    response = requests.get(url=URL, headers=headers)

    print(f'Status code : {response.status_code}')
    json_resp = response.json()

    print(json.dumps(json_resp, indent=2))
    print(json_resp[0]['cena'])

except Exception as e:
    print(e)