Create base metadata Api gives me a could not send request error.

[chandana_kaza]

Hi, I am trying to create a base and keep getting the "could not send request error"

Attached is my Json body and the screen shot of the API call and the error. 

{
    "name": "CMM 2017",
    "tables": [
      {
        "description": "A to-do list of places to visit",
        "fields": [
          {
            "description": "Name of the apartment",
            "name": "Name",
            "type": "singleLineText"
          },
          {
            "name": "Address",
            "type": "singleLineText"
          },
          {
            "name": "Visited",
            "options": {
              "color": "greenBright",
              "icon": "check"
            },
            "type": "checkbox"
          }
        ],
        "name": " Editorial 2017"
      }
    ],
    "workspaceId": "wsprSxuHCKzjhwYUM"
  }