Tradier

API

US Equity & Option Market Data API (Delayed, Intraday, Historical)

Overview

Tradier provides RESTful endpoints for delayed real-time, intraday, and historical US equity and option market data. Responses are JSON-formatted, including quotes, charts, options chains, and historical prices. Use cases include building financial analytics tools, backtesting trading strategies, creating market dashboards, or integrating data into investment apps. It supports key market data points for equities and options, enabling developers to build robust financial applications with reliable US market data.

Example Integration (JavaScript)

script.js JS


fetch('https://developer.tradier.com')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful API
JSON Responses
US Equity & Option Data
Delayed Real-Time Data
Intraday & Historical Data
Options Chains Support

Frequently Asked Questions

? Is Tradier free to use?

Tradier offers a freemium pricing model with a free tier for basic market data access, plus paid tiers for advanced features like real-time data and higher rate limits.

? Does it require an API Key?

Yes, Tradier requires an API key for authentication. You can sign up on their developer portal to obtain one.

? What is the response format?

Tradier returns data in JSON format for all endpoints, ensuring easy parsing and integration into applications.

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Tool Info

Pricing Freemium

Category Finance

Platform Public API

Pros

⊕ Comprehensive Market Data Coverage
⊕ Easy-to-Use REST Endpoints
⊕ Reliable Data Sources
⊕ Flexible Freemium Pricing

Cons

⊖ Requires API Key Authentication
⊖ Delayed Data in Free Tier
⊖ Limited to US Markets Only
⊖ Rate Limits Apply