curl --request GET \
  --url https://api.arbiterapi.com/v1/kalshi/markets \
  --header 'X-API-Key: <api-key>'

import requests

url = "https://api.arbiterapi.com/v1/kalshi/markets"

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.arbiterapi.com/v1/kalshi/markets', 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.arbiterapi.com/v1/kalshi/markets",
  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.arbiterapi.com/v1/kalshi/markets"

	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.arbiterapi.com/v1/kalshi/markets")
  .header("X-API-Key", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.arbiterapi.com/v1/kalshi/markets")

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

{
  "data": [
    {
      "ticker": "KXBTC-26MAR28-100000",
      "event_ticker": "KXBTC",
      "series_ticker": "KXBTC",
      "title": "Will Bitcoin be above $100,000 on March 28?",
      "status": "active",
      "market_type": "binary",
      "yes_bid_dollars": "0.6500",
      "yes_ask_dollars": "0.6700",
      "no_bid_dollars": "0.3300",
      "no_ask_dollars": "0.3500",
      "last_price_dollars": "0.6500",
      "previous_price_dollars": "0.6200",
      "volume_fp": "15432.00",
      "volume_24h_fp": "3210.00",
      "open_interest_fp": "5000.00",
      "liquidity_dollars": "12500.00",
      "open_time": "2026-03-01T00:00:00Z",
      "close_time": "2026-03-28T23:59:00Z",
      "expiration_time": "2026-03-29T12:00:00Z",
      "created_time": "2026-02-28T10:00:00Z",
      "notional_value_dollars": "1.0000",
      "tick_size": "0.0100",
      "response_price_units": "usd_cent",
      "can_close_early": true
    }
  ],
  "cursor": "abc123",
  "has_more": true
}

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>"
    }
  ]
}