curl --request POST \
  --url https://terrapinfinance.com/api/v1/agency_reference \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "isins": [
    "US3134HCZH51"
  ]
}
'

import requests

url = "https://terrapinfinance.com/api/v1/agency_reference"

payload = { "isins": ["US3134HCZH51"] }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({isins: ['US3134HCZH51']})
};

fetch('https://terrapinfinance.com/api/v1/agency_reference', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://terrapinfinance.com/api/v1/agency_reference",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'isins' => [
        'US3134HCZH51'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://terrapinfinance.com/api/v1/agency_reference"

	payload := strings.NewReader("{\n  \"isins\": [\n    \"US3134HCZH51\"\n  ]\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://terrapinfinance.com/api/v1/agency_reference")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"isins\": [\n    \"US3134HCZH51\"\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://terrapinfinance.com/api/v1/agency_reference")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"isins\": [\n    \"US3134HCZH51\"\n  ]\n}"

response = http.request(request)
puts response.read_body

{
  "data": [
    {
      "call_type": "bermudan",
      "cfi_code": "DBFNGR",
      "composite_issue_rating": "AA+",
      "composite_issuer_rating": "AAA",
      "country": "United States of America",
      "country_code": "US",
      "coupon": 5.2,
      "coupon_frequency": 2,
      "coupon_payment_day": 16,
      "coupon_payment_months": [
        3,
        9
      ],
      "currency": "USD",
      "figi": "BBG020WFFJW5",
      "figi_name": "FREDDIE MAC",
      "first_call_date": "2028-03-16",
      "first_interest_payment_date": "2026-09-16",
      "integral_multiple": 1000,
      "interest_accrual_convention": "30/360",
      "interest_accrual_date": "2026-03-16",
      "interest_payment_schedule": [
        {
          "interest_type": "regular",
          "payment_date": {
            "day": 16,
            "month": 9,
            "year": 2026
          },
          "periodic_schedule": {
            "period_amount": 6,
            "period_type": "month",
            "until": null
          }
        }
      ],
      "interest_rate": 5.2,
      "interest_rate_schedule": [
        {
          "determination_period": null,
          "from_date": null,
          "interest_rate": 5.2,
          "interest_type": "fixed",
          "rate_mode_name": null,
          "until_date": null
        }
      ],
      "interest_type": "fixed rate",
      "is_144a": false,
      "is_callable": true,
      "is_covered": false,
      "is_green": false,
      "is_inflation_linked": false,
      "is_outstanding": true,
      "is_puttable": false,
      "is_regs": false,
      "isin": "US3134HCZH51",
      "issue_date": "2026-03-16",
      "issue_price": 100,
      "issued_amount": 50000000,
      "issuer_name": "FEDERAL HOME LOAN MORTGAGE CORPORATION",
      "lei": "S6XOOCT0IEG5ABCC6L87",
      "maturity_date": "2056-03-16",
      "maturity_type": "fixed",
      "minimum_denomination": 1000,
      "next_call_date": "2028-03-16",
      "next_call_price": 100,
      "next_coupon_date": "2026-09-16",
      "odd_first_coupon": "regular",
      "odd_last_coupon": "regular",
      "optional_redemption_schedule": [
        {
          "call_date": "2028-03-16",
          "call_price": {
            "spread_in_bps": 0,
            "type": "principal"
          },
          "includes_accrued_interest": true,
          "is_periodic": true,
          "period_amount": 3,
          "period_type": "month",
          "until": null
        }
      ],
      "previous_coupon_date": null,
      "rank": "senior",
      "registration_type": "registered",
      "standard_day_of_settlement": 0,
      "ticker": "FHLMC 5.2 03/16/56",
      "underwriters": [
        "MESIROW FINANCIAL"
      ],
      "validation_errors": []
    }
  ],
  "total": 1
}

{
  "errors": [
    {
      "detail": "Unauthorized",
      "reason": "Your account tier does not allow this operation. Contact team@terrapinfinance.com for an upgrade."
    }
  ]
}

{
  "errors": [
    {
      "detail": "Payment Required",
      "reason": "You have run out of your granted quota for this resource as defined by your account tier. Contact team@terrapinfinance.com for an upgrade."
    }
  ]
}

{
  "errors": [
    {
      "detail": "Forbidden",
      "reason": "Your account tier does not allow this operation. Contact team@terrapinfinance.com for an upgrade."
    }
  ]
}

{
  "errors": [
    {
      "detail": "Invalid string. Got: integer",
      "source": {
        "pointer": "/isins/0"
      },
      "title": "Invalid value"
    }
  ]
}

{
  "errors": [
    {
      "detail": "Too Many Requests",
      "reason": "<string>"
    }
  ]
}

{
  "errors": [
    {
      "detail": "Internal Server Error",
      "reason": "<string>"
    }
  ]
}