List agents

curl --request GET \
  --url https://api.useproxy.ai/v1/agents \
  --header 'Api-Key: <api-key>'

{
  "data": [
    {
      "id": "<string>",
      "userId": "<string>",
      "name": "<string>",
      "status": "active",
      "createdAt": 123,
      "externalId": "<string>",
      "description": "<string>",
      "deregisteredAt": 123,
      "spendingLimit": 123,
      "spendingLimitFrequency": "perTransaction",
      "currentSpend": 123,
      "onLimitExceeded": "suspend",
      "maxCards": 123,
      "cardCount": 123,
      "metadata": {},
      "defaultRequireApproval": true,
      "defaultAutoApproveBelow": 123
    }
  ],
  "hasMore": true,
  "cursor": "<string>"
}