curl --request POST \
  --url https://terrapinfinance.com/api/v1/muni_bonds_in_series \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "isin": "US794760LQ96"
}
'

{
  "data": [
    {
      "coupon": 4,
      "has_official_statement": true,
      "interest_type": "fixed rate",
      "is_callable": true,
      "isin": "US794760LM82",
      "issuer_name": "Salina Airport Authority",
      "maturity_date": "2040-09-01",
      "rating_group": "investment_grade",
      "state": "KS",
      "ticker": "KS SALAPT 4 09/01/2040"
    },
    {
      "coupon": 4,
      "has_official_statement": true,
      "interest_type": "fixed rate",
      "is_callable": true,
      "isin": "US794760LQ96",
      "issuer_name": "Salina Airport Authority",
      "maturity_date": "2043-09-01",
      "rating_group": "investment_grade",
      "state": "KS",
      "ticker": "KS SALAPT 4 09/01/2043"
    }
  ],
  "total": 2
}