curl --request GET \
  --url https://api-v2.hayinsights.com/openapi/v1/macro/fed-funds/us/daily \
  --header 'X-API-Key: <api-key>'

import requests

url = "https://api-v2.hayinsights.com/openapi/v1/macro/fed-funds/us/daily"

headers = {"X-API-Key": "<api-key>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {'X-API-Key': '<api-key>'}};

fetch('https://api-v2.hayinsights.com/openapi/v1/macro/fed-funds/us/daily', 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://api-v2.hayinsights.com/openapi/v1/macro/fed-funds/us/daily",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "X-API-Key: <api-key>"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://api-v2.hayinsights.com/openapi/v1/macro/fed-funds/us/daily"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("X-API-Key", "<api-key>")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api-v2.hayinsights.com/openapi/v1/macro/fed-funds/us/daily")
  .header("X-API-Key", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api-v2.hayinsights.com/openapi/v1/macro/fed-funds/us/daily")

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

request = Net::HTTP::Get.new(url)
request["X-API-Key"] = '<api-key>'

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

{
  "success": true,
  "statusCode": 200,
  "data": {
    "country": "us",
    "period": "1Y",
    "from": "2025-11-07",
    "to": "2026-11-06",
    "latestDate": "2026-11-06",
    "knowledgeAt": "2026-11-07T14:12:03.000Z",
    "wasRestated": false,
    "points": [
      {
        "date": "2026-10-28",
        "effr": 3.88,
        "p01": 3.83,
        "p25": 3.87,
        "p75": 3.89,
        "p99": 3.95,
        "volumeBn": 115,
        "targetLow": 3.75,
        "targetHigh": 4,
        "iorb": 3.9,
        "spreadIorbBp": -2,
        "reserveRate": "IORB"
      },
      {
        "date": "2026-10-29",
        "effr": 3.88,
        "p01": 3.83,
        "p25": 3.87,
        "p75": 3.89,
        "p99": 3.94,
        "volumeBn": 117,
        "targetLow": 3.75,
        "targetHigh": 4,
        "iorb": 3.9,
        "spreadIorbBp": -2,
        "reserveRate": "IORB"
      },
      {
        "date": "2026-11-06",
        "effr": 3.88,
        "p01": 3.82,
        "p25": 3.86,
        "p75": 3.89,
        "p99": 3.96,
        "volumeBn": 112,
        "targetLow": 3.75,
        "targetHigh": 4,
        "iorb": null,
        "spreadIorbBp": null,
        "reserveRate": null
      }
    ],
    "fomcDecisions": [
      {
        "decisionDate": "2026-10-28",
        "effectiveDate": "2026-10-29",
        "action": "HOLD",
        "changeBp": 0
      }
    ]
  },
  "meta": {
    "source": [
      "Federal Reserve Bank of New York — Effective Federal Funds Rate (Markets Data API)",
      "FRED (St. Louis Fed) — IORB, IOER and the federal funds target range"
    ],
    "as_of": "2026-11-06",
    "unit": {
      "rate": "percent_per_annum",
      "volumeBn": "usd_billion",
      "spreadIorbBp": "basis_points"
    },
    "knowledge_at": "2026-11-07T14:12:03.000Z",
    "classification": {
      "RAW": [
        "effr",
        "p01",
        "p25",
        "p75",
        "p99",
        "volumeBn",
        "targetLow",
        "targetHigh",
        "iorb"
      ],
      "DERIVED": [
        "reserveRate"
      ],
      "COMPUTED": [
        "spreadIorbBp"
      ]
    },
    "formula_version": {
      "spreadIorbBp": "v1: (effr - iorb) * 100"
    },
    "was_restated": false,
    "terms_notice": "The Effective Federal Funds Rate (EFFR) is subject to the Terms of Use posted at newyorkfed.org. The New York Fed is not responsible for publication of the EFFR by HayInsights, does not sanction or endorse any particular republication, and has no liability for your use.",
    "served_from_cache": false,
    "cache_expires_at": "2026-11-08T02:12:03.000Z",
    "timestamp": "2026-11-07T14:12:03.000Z"
  }
}

{
  "success": false,
  "statusCode": 400,
  "error": {
    "code": "INTERNAL_ERROR",
    "message": [
      "Invalid type parameter. Must be \"gdp\", \"cpi\", \"pce\", or \"import-export\"",
      "Type parameter is required"
    ]
  },
  "meta": {
    "error": "Bad Request",
    "statusCode": 400,
    "timestamp": "2026-06-19T08:34:08.081Z"
  }
}

{
  "success": false,
  "statusCode": 401,
  "error": {
    "code": "API_KEY_INVALID",
    "message": "Invalid API key"
  },
  "meta": {
    "timestamp": "2026-06-19T08:34:08.023Z"
  }
}

{
  "success": false,
  "statusCode": 403,
  "error": {
    "code": "FEATURE_NOT_IN_PLAN",
    "message": "Your plan does not include this feature"
  },
  "meta": {
    "timestamp": "2026-06-19T08:34:08.100Z"
  }
}

{
  "success": false,
  "statusCode": 429,
  "error": {
    "code": "RATE_LIMIT_EXCEEDED",
    "message": "Rate limit exceeded"
  },
  "meta": {
    "timestamp": "2026-06-19T08:34:09.000Z"
  }
}

{
  "success": false,
  "statusCode": 500,
  "error": {
    "code": "INTERNAL_ERROR",
    "message": "Internal server error"
  },
  "meta": {
    "timestamp": "2026-06-19T08:34:10.000Z"
  }
}