curl --request GET \
  --url https://pro-api.coingecko.com/api/v3/onchain/categories \
  --header 'x-cg-pro-api-key: <api-key>'

{
  "data": [
    {
      "id": "basedotmeme-launchpad",
      "type": "category",
      "attributes": {
        "name": "Basedotmeme Launchpad",
        "description": "Tokens launched from base.meme launchpad. (https://base.meme/)",
        "volume_change_percentage": {
          "h1": "-80.77",
          "h6": "132756.5",
          "h12": "12603.22",
          "h24": "5165.63"
        },
        "reserve_in_usd": "25598.43",
        "fdv_usd": "79496.96",
        "h24_volume_usd": "622.05",
        "h24_tx_count": 7
      }
    },
    {
      "id": "ape",
      "type": "category",
      "attributes": {
        "name": "Ape",
        "description": "Tokens related to the great apes ",
        "volume_change_percentage": {
          "h1": "1527.94",
          "h6": "9972.78",
          "h12": "5575.81",
          "h24": "3266.85"
        },
        "reserve_in_usd": "22471204.46",
        "fdv_usd": "16309303406314.87",
        "h24_volume_usd": "26749165.82",
        "h24_tx_count": 103967
      }
    }
  ]
}