curl --request GET \
  --url https://ratesapi.nz/api/v1/mortgage-rates/{institutionId}

{
  "type": "MortgageRates",
  "data": [
    {
      "id": "institution:anz",
      "name": "ANZ",
      "products": [
        {
          "id": "product:anz:standard",
          "name": "Standard",
          "rates": [
            {
              "id": "rate:anz:standard:18-months",
              "rate": 4.29,
              "term": "6 months",
              "termInMonths": 6
            }
          ]
        }
      ]
    }
  ],
  "lastUpdated": "2021-08-01T00:00:00.000Z",
  "termsOfUse": "<string>",
  "timestamp": "2025-03-04T02:30:00.000Z"
}