If the page doesn't exist it will be created. See geojson examples below form for formatting help. Copy and paste that thing in here. We don't save your api key.

Examples of GeoJSON:

{
  "geometries":[
    {
      "coordinates": [-122.450771,37.762443],
      "type":"Point"
    }
  ],
  "type":"GeometryCollection"
}
{
  "geometries":[
    {
      "coordinates":[
        [
          [-122.322157,47.639955],
          [-122.32044,47.641979],
          [-122.316492,47.641227],
          [-122.312887,47.638335],
          [-122.311256,47.636716],
          [-122.310999,47.635791],
          [-122.309024,47.635212],
          [-122.307995,47.632783],
          [-122.306535,47.632808],
          [-122.306471,47.632812],
          [-122.305484,47.634345],
          [-122.304368,47.635357],
          [-122.301579,47.634952],
          [-122.301783,47.63289],
          [-122.3013,47.632899],
          [-122.301471,47.612651],
          [-122.329881,47.612477],
          [-122.327478,47.61861],
          [-122.32765,47.627866],
          [-122.323015,47.632783],
          [-122.322328,47.636658],
          [-122.322157,47.639955]
        ]
      ],
      "type":"Polygon"
    }
  ],
  "type":"GeometryCollection"
}