curl --request POST \
  --url https://useorgx.com/api/v1/studio/checkout \
  --header 'Content-Type: application/json' \
  --cookie __session= \
  --data '
{
  "estimateId": "18437eec-cd8d-453a-83e8-a2a8d8d3b4cf"
}
'

const options = {
  method: 'POST',
  headers: {cookie: '__session=', 'Content-Type': 'application/json'},
  body: JSON.stringify({estimateId: '18437eec-cd8d-453a-83e8-a2a8d8d3b4cf'})
};

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

import requests

url = "https://useorgx.com/api/v1/studio/checkout"

payload = { "estimateId": "18437eec-cd8d-453a-83e8-a2a8d8d3b4cf" }
headers = {
    "cookie": "__session=",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "checkoutUrl": "https://checkout.stripe.com/c/pay/cs_test_a1b2c3",
  "sessionId": "cs_test_a1b2c3",
  "amount": 1000
}

{
  "requiresAuth": true,
  "redirectUrl": "<string>"
}