If you're building an algo trading system that touches US equity options, you've probably hit the same wall I did: data providers are either expensive, over-engineered, or both.
I got tired of paying for features I didn't need — tick history, alternative data, proprietary SDKs — when all I wanted was a clean REST endpoint that returned options chain data in plain JSON.
So I built market-option.com — a real-time US options data API designed specifically for developers and algo traders who want the data, not the platform.
What It Does
4 endpoints. That's it.
-
/chain— full options chain for any supported ticker -
/contract— single contract by symbol -
/contracts— bulk contract lookup -
/contract-overview— Greeks, IV, open interest, volume in one call
All responses are plain JSON. No SDK required. No proprietary query language. Just HTTP GET requests and an API key.
Who It's Built For
If you're:
- Running a Python bot that trades options automatically
- Backtesting credit spread or iron condor strategies
- Building a scanner for high-IV setups
- Just experimenting with options data before committing to a $99/mo plan
...this is built for you.
The Coverage
Top 100 US underlyings. That covers roughly 95% of actual options volume — SPY, QQQ, AAPL, TSLA, NVDA, and the rest of the names algo traders actually trade.
No exotic tickers, no noise. Just the liquid names where the volume is.
The Pricing
$20/mo.
No tiers based on request volume, no enterprise gates, no annual commitment required to get the real price.
Compare that to:
- Tradier: $99+/mo for options data
- Polygon.io: options add-on costs more than most indie budgets
- CBOE DataShop: enterprise pricing, not built for individual developers
Try It Free — No Credit Card
Free tier: 1,000 API credits/day, forever. Enough to build and test.
7-day Pro trial: full access, no credit card, no commitment. If it doesn't work for your use case, you walk away having paid nothing.
Happy to answer questions about endpoints, rate limits, or what's on the roadmap. Drop a comment.
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