Overview
Tradier is a US brokerage API that provides access to equity and options market data including delayed quotes, intraday prices, and historical data going back years. It uses OAuth 2.0 authentication and offers both a sandbox environment for testing and a live environment for production use. While powerful, the OAuth flow makes it more complex than simple API key authentication.
Beginner Tip
Use Tradier free sandbox environment (sandbox.tradier.com) to test your integration without needing a brokerage account — the sandbox provides simulated market data and lets you test order flows safely.
Available Data
Example Response
{
"status": "success",
"data": {
"result": "Data from Tradier",
"description": "US equity/option market data (delayed, intraday, historical)",
"timestamp": "2025-01-15T10:00:00Z"
}
} Field Reference
quotes.quote.symbol The ticker symbol for this quote. quotes.quote.last Most recent trade price for the security. quotes.quote.bid Current highest bid price. quotes.quote.ask Current lowest ask price. quotes.quote.volume Total trading volume for the current session. quotes.quote.change_percentage Percentage change in price compared to the previous close. Implementation Example
const url = "https://developer.tradier.com/";
// Replace headers or query params with the values required by this API.
const response = await fetch(url, {
headers: {
"Authorization": "Bearer YOUR_API_KEY"
}
});
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data); What Can You Build?
Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.
Common Errors & Troubleshooting
Matrix Score Breakdown
Partially tested on Apr 5, 2026
Technical Specifications
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