curl --request GET \
  --url https://api.peel.sh/.well-known/oauth-protected-resource \
  --header 'Key: <api-key>'

const options = {method: 'GET', headers: {Key: '<api-key>'}};

fetch('https://api.peel.sh/.well-known/oauth-protected-resource', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.peel.sh/.well-known/oauth-protected-resource"

headers = {"Key": "<api-key>"}

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

print(response.text)

{}