Tradier

US equity/option market data (delayed, intraday, historical)

Auth

OAuth

HTTPS

✅ Yes

CORS

yes

Quick Start

curl -s "https://developer.tradier.com" \
  -H "Authorization: Bearer YOUR_API_KEY"

import requests

response = requests.get("https://developer.tradier.com",
    headers={"Authorization": "Bearer YOUR_API_KEY"})
data = response.json()
print(data)

const response = await fetch("https://developer.tradier.com", {
  headers: { "Authorization": "Bearer YOUR_API_KEY" }
});
const data = await response.json();
console.log(data);