playbook
Yes / No on the open contract. Try it fills size — it does not submit unless you check place.
https://kalshi.com/calendar
ws wss://api.elections.kalshi.com/v1/ws?csrfToken=7KSmXijAmgeyL%2BpZqJvD5S2CvI2XkzsWVvXQUcL%2Bw0c%3D
order ticket
last —