curl --request GET \
  --url https://gateway.polymarket.us/v2/tags

{
  "tags": [
    {
      "id": "<string>",
      "label": "<string>",
      "slug": "<string>",
      "createdAt": "<string>",
      "updatedAt": "<string>",
      "image": "<string>",
      "tradable": true,
      "league": {
        "id": 123,
        "name": "<string>",
        "sportId": 123,
        "tagId": 123,
        "image": "<string>",
        "resolution": "<string>",
        "ordering": "<string>",
        "activeSeriesId": 123,
        "isOperational": true,
        "automaticResolution": true,
        "createdAt": "<string>",
        "slug": "<string>",
        "abbreviation": "<string>"
      },
      "sport": {
        "id": 123,
        "name": "<string>",
        "tagId": 123,
        "createdAt": "<string>",
        "slug": "<string>",
        "image": "<string>"
      },
      "parentId": 123,
      "subtags": [
        {}
      ]
    }
  ]
}