Available on ORTEX retail API plans
What is the ORTEX API?
The ORTEX API provides programmatic access to institutional-grade financial data — the same real-time short interest, options analytics, and stock scores used by professional traders on the ORTEX platform. Integrate directly into your trading systems, dashboards, and automated workflows.
Available Datasets
Short Interest & Borrowing
- Global Short Interest
- European & Japanese Regulatory Disclosures
- US, Canada, Australia & Hong Kong Regulatory Disclosures
- Cost to Borrow
- Short Availability
- Fails-to-Deliver (FTD)
Shares & Fundamentals
- Shares Outstanding & Free Float
- Financial Statements — Balance Sheet, Income Statement, Cash Flow
- Key Ratios — valuation, margin, leverage, efficiency, etc.
Stock Scores
- Composite ranking model driven by 100+ factors
- Includes value, momentum, quality, growth, volatility & sentiment signals
- Updated continuously with market and fundamental inputs
Options Data
- Option Chains — open interest, volume, implied volatility
- Greeks — Delta, Gamma, Theta, Vega, Rho
- Option Expiries
- Put/Call sentiment indicators
Events & Pricing
- Earnings Calendar
- Macro Events
- Stock Splits
- Daily OHLCV — Open, High, Low, Close, Volume (main exchange or all exchanges)
US Government Trades
- Track trades made by US Senators, Representatives, and Officials
- Includes disclosures, transaction values, tickers, and classifications
- Updated as filings are made public
Plans
To access the ORTEX APIs you need an API subscription. Trader, Quant and Developer plans are available to purchase directly; Enterprise plans are custom-priced — contact our team to discuss your requirements.
| Feature | Trader | Quant | Developer | Enterprise |
|---|---|---|---|---|
| Rate limit | 1 req/s | 5 req/s | 50 req/s | As agreed |
| Credits / month | 1,000 | 10,000 | 100,000 | As agreed |
| JSON page size | 100 | 1,000 | 10,000 | As agreed |
| Single stock APIs | ✓ | ✓ | ✓ | As agreed |
| Short Interest Intraday and Live | — | ✓ | ✓ | As agreed |
| Bulk APIs | — | ✓ | ✓ | As agreed |
| Universe APIs | — | ✓ | ✓ | As agreed |
| Enterprise APIs | — | — | — | As agreed |
| Index rebalance | With add-on | With add-on | With add-on | As agreed |
| US Options | With add-on | With add-on | With add-on | As agreed |
| Redistribution rights | — | — | — | As agreed |
Get Started
Subscribe to one of the plans below to get your API key instantly:
You can also test any API using the demo key: TEST
Manage your keys anytime at app.ortex.com/apis
Using the API
Every v11 endpoint shares the same authentication, response structure, and error format — learn them once and they apply everywhere:
- API Authentication (v11) — issue an API key and send it correctly, with Python, curl, and Node.js examples.
- The Response Envelope — how every successful response is structured, including stock timeseries vs bulk daily shapes and CSV downloads.
- Response & Error Codes — the standard error envelope, HTTP status codes, and the machine-readable error-code vocabulary.
Enterprise APIs
Our Enterprise APIs provide powerful bulk-access capabilities, including:
- Full-day data downloads
- Index rebalance forecasts
- High-volume and automated ingestion
- Custom data delivery pipelines
Enterprise access can be fully tailored to your needs. Reach out to [email protected] for details and pricing.
Frequently Asked Questions
What data is available through the ORTEX API?
The ORTEX API provides short interest and securities lending data (updated daily by 7:30am ET), options chains with Greeks, stock scores based on 100+ factors, earnings calendars, macro events, and US government trading disclosures.
How do I get an ORTEX API key?
Subscribe to a plan above to receive your API key instantly. You can test any endpoint using the demo key TEST.
How is ORTEX short interest data different from exchange data?
US exchanges only publish short interest twice monthly with an 8-day delay. ORTEX sources data daily from 700k+ pools of agent lenders, prime brokers, and broker-dealers — giving you a more timely view of short selling activity.
Does ORTEX offer enterprise API access?
Yes. Enterprise APIs support full-day downloads, index rebalance forecasts, high-volume ingestion, and custom delivery pipelines. Contact [email protected] for pricing.