curl --request GET \
  --url https://api.justpaid.io/api/v1/customer/{customer_uuid}/payment-methods \
  --header 'Authorization: Bearer <token>'

{
  "credit_cards": [
    {
      "brand": "visa",
      "last4": "4242",
      "expiration_date": "12/25"
    }
  ],
  "ach_accounts": [
    {
      "account_mask": "1234",
      "account_type": "checking",
      "account_name": "Primary Checking",
      "institution_name": "Bank of America"
    }
  ]
}