curl --request POST \
  --url http://api.endclose.com/data_sources \
  --header 'Content-Type: application/json' \
  --header 'X-API-KEY: <api-key>' \
  --data '
{
  "key": "<string>",
  "name": "<string>"
}
'

{
  "key": "<string>",
  "name": "<string>"
}