curl --request GET \
  --url https://api.probsights.com/historical/kalshi/orderbook \
  --header 'X-API-Key: <api-key>'

import requests

url = "https://api.probsights.com/historical/kalshi/orderbook"

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.probsights.com/historical/kalshi/orderbook', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "snapshots": [
    {}
  ],
  "pagination": {},
  "market_id": "<string>",
  "timestamp": 123,
  "yes_bids": [
    {}
  ],
  "no_bids": [
    {}
  ],
  "best_yes_bid": 123,
  "best_yes_ask": 123,
  "mid": 123,
  "spread": 123
}