curl --request GET \
  --url https://pro-api.coingecko.com/api/v3/onchain/networks/{network}/dexes \
  --header 'x-cg-pro-api-key: <api-key>'

{
  "data": [
    {
      "id": "uniswap_v2",
      "type": "dex",
      "attributes": {
        "name": "Uniswap V2"
      }
    },
    {
      "id": "sushiswap",
      "type": "dex",
      "attributes": {
        "name": "SushiSwap"
      }
    }
  ]
}