curl --request GET \
  --url https://api.enterprise.sandbox.uphold.com/core/networks \
  --header 'Authorization: Bearer <token>'

{
  "networks": [
    {
      "code": "bitcoin",
      "type": "crypto",
      "name": "Bitcoin",
      "logo": "https://cdn.uphold.com/assets/BTC.svg",
      "exampleAddress": "tb1qgu0gacn9pqpnvlqclvdwyz4gfgxz8pptfz4emt",
      "explorer": {
        "addressUrl": "https://mempool.space/testnet/tx/<hash>",
        "txUrl": "https://mempool.space/testnet/address/<hash>"
      }
    },
    {
      "code": "visa",
      "type": "card",
      "name": "VISA",
      "logo": "https://cdn.uphold.com/assets/VISA.svg"
    },
    {
      "code": "mastercard",
      "type": "card",
      "name": "Mastercard",
      "logo": "https://cdn.uphold.com/assets/Mastercard.svg"
    }
  ]
}