Terms of Service

Please read these Terms of Service carefully. By creating an account, clicking "I Agree", accessing or using https://www.optiondata.io, or using any service provided by OptionData LLC, you agree to be legally bound by this Agreement.

These Terms constitute a legally binding contract between you (the user, personally or on behalf of an entity) and OptionData LLC concerning your access to and use of the OptionData website, APIs, software, data, documentation, and services (collectively, the "Service").

You represent that you have the legal capacity to enter into this Agreement. If you are accepting on behalf of an entity, you represent that you have authority to bind that entity and its affiliates. If you do not agree with these Terms, you must not access or use the Service.

Your continued access to or use of the Service after changes are posted constitutes acceptance of the revised Terms.

1. Definitions

Capitalized terms have the meanings set forth below or elsewhere in this Agreement.

• API: The Application Programming Interface, including all associated software, documentation, tools, and access keys provided by the Company that allow programmatic access to the Data.
• API Call: A single programmatic request made by a user application to an API endpoint to retrieve Data. Only successful responses (HTTP 2xx) count toward usage limits.
• Data: Financial market information, analytics, and metrics made available through the Service, including real-time and historical options data such as bid/ask prices, last trade prices, volume, open interest, implied volatility, theoretical prices, and Greeks (Delta, Gamma, Theta, Vega, Rho). Data also includes proprietary datasets such as Unusual Options Activity, options order flow, and derived sentiment analysis.
• Derived Data: New, original works created by processing Data, with or without other input data, subject to the restrictions in Section 6.
• Documentation: Current documents, guides, and materials describing the technical and functional capabilities of the Service.
• Intellectual Property Rights: All present and future rights in works of authorship, copyrights, trademarks, trade names, trade secrets, patents, and other proprietary rights in any jurisdiction.
• Service: The products, services, and platforms offered by OptionData LLC, including the website, APIs, Data, Documentation, and any related support or maintenance services.
• Subscription Plan: The bundle of services, features, and usage limits for which you have subscribed, including free trials and paid tiers.
• Subscription Term: The period during which you have an active subscription to a Subscription Plan.
• User Content: Any data, information, queries, or materials you submit to the Service.

2. Description of Service

The Company provides financial data services specializing in real-time and historical options market data delivered through REST and WebSocket APIs. The Service is designed for developers, traders, and analysts to build tools, backtests, and workflows.

Key features include Unusual Options Activity (UOA) data that identifies and structures anomalous options trades such as large block trades and sweeps. UOA data typically represents trades with a premium of $25,000 or greater and is delivered with sub-minute latency. Data fields can include underlying ticker, contract type (put_call), strike price, expiration date, activity type (SWEEP or BLOCK), open interest, volume, trade size, price, total premium, underlying price at execution, and estimated sentiment based on execution price relative to the bid/ask spread.

The Service may also include historical options data, end-of-day data, and analytical tools. Availability depends on your Subscription Plan.

3. Account Registration and User Conduct

3.1 Account Creation

To access the Service, you must register for an account and provide accurate, current, and complete information. You agree to keep your information up to date.

The use of temporary or disposable email addresses is prohibited and may result in immediate termination. The Company may suspend or terminate accounts that provide inaccurate or incomplete information.

3.2 Account Security

You are responsible for safeguarding your account credentials and API key. You must not share them with any third party.

You are responsible for all activities under your account and for any Data requests made using your credentials. Notify the Company immediately of any unauthorized use.

3.3 Prohibited Conduct

• Use the Service for any illegal, fraudulent, or unauthorized purpose, or in violation of any applicable law or regulation.
• Access, tamper with, or use non-public areas of the Service or the Company systems.
• Probe, scan, or test the vulnerability of any system or breach security or authentication measures.
• Circumvent technological measures, including usage limits or rate limits associated with your Subscription Plan.
• Transmit viruses, worms, or other destructive items.
• Interfere with or disrupt the integrity or performance of the Service or its data.

4. Subscriptions, Fees, and Payment

The Service is provided on a subscription basis. By selecting a Subscription Plan, you agree to pay the applicable fees shown on the pricing page or in a separate ordering document.

4.1 Subscription Plans

4.2 Billing and Payment

Subscription fees are billed in advance on a recurring basis. You must provide a valid payment method and authorize the Company to charge it for all fees. Fees exclude taxes, which remain your responsibility. Payments are non-refundable except as required by law or expressly stated in this Agreement.

4.3 Fee Changes

The Company may change fees at any time and will provide at least 30 days notice for changes to recurring subscription fees.

5. License Grant

Subject to compliance with this Agreement and timely payment of fees, the Company grants you a limited, non-exclusive, non-transferable, non-sublicensable, and revocable license to access and use the Service and Data during the Subscription Term for personal, non-professional, individual use only.

You are a non-professional user only if you are not using Data for any commercial purpose and do not qualify as a professional under securities exchange rules. Professional use includes use on behalf of a corporation or legal entity, registration with a financial regulatory authority, or use for any purpose other than your own individual trading or analysis.

6. Derived Data

You may create Derived Data provided it cannot be reverse engineered to recreate the original Data or a reasonable substitute. This does not prohibit internal calculations of Greeks, theoretical values, or implied volatility.

You must not use Data (i) as input in the creation of any index or similar work, or (ii) to create any financial instrument or investment product that is based on, or seeks to match the performance of, values included in the Data, unless you have a separate written license.

7. Restrictions on Use

• Use the Service or Data for any commercial, business, or professional purpose. The Service is licensed for individual, non-professional use only.
• Sell, resell, rent, lease, sublicense, loan, distribute, transfer, or otherwise disseminate the Service or Data.
• Develop, market, or sell any product or service that competes with the Service.
• Reverse engineer, decompile, disassemble, or otherwise attempt to discover the source code, object code, or underlying structure or algorithms of the Service.
• Use automated means such as bots or scrapers to access the Service or extract Data outside the provided APIs or in violation of usage limits.
• Modify, translate, or create derivative works based on the Service or Data, except as expressly permitted in Section 6.
• Remove or obscure proprietary notices in the Service or Data.
• Use the Data in a public-facing application without prominent attribution to optiondata.io as the source.

Violation of these restrictions is a material breach and may result in immediate termination without refund, along with legal action for damages or injunctive relief.

8. Intellectual Property Rights

The Company and its licensors retain all right, title, and interest in the Service, including the API, Data (in compiled and structured form), software, Documentation, and related Intellectual Property Rights. This Agreement grants no ownership interest, only a limited right of use.

The OptionData name, logo, and product names are trademarks of the Company or third parties. No license is granted to use them beyond what is necessary to use the Service.

If you provide feedback, you grant the Company a perpetual, irrevocable, worldwide, royalty-free license to use, reproduce, modify, and distribute that feedback for any purpose without compensation.

9. Data Sources and Third-Party Content

Data is aggregated from third-party sources, including U.S. options exchanges and consolidated feeds such as OPRA. The Company does not originate raw market data and cannot guarantee accuracy, completeness, or timeliness.

The Company is not responsible for errors, omissions, delays, or inaccuracies originating from third-party providers. Each data provider is a third-party beneficiary of Sections 6, 10, 11, 12, and 13 and may enforce those provisions directly against you.

10. Disclaimer of Warranties

THE SERVICE AND DATA ARE PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF ACCURACY, COMPLETENESS, TIMELINESS, NONINFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.

THE COMPANY AND ITS DATA PROVIDERS DISCLAIM LIABILITY FOR INACCURACIES, OMISSIONS, HUMAN OR MACHINE ERRORS, OR OTHER IRREGULARITIES IN THE DATA, AND FOR ANY CESSATION, DISCONTINUANCE, FAILURE, MALFUNCTION, DELAY, SUSPENSION, INTERRUPTION, OR TERMINATION OF DATA DELIVERY.

THE COMPANY DOES NOT WARRANT THAT THE SERVICE WILL BE SECURE, UNINTERRUPTED, TIMELY, OR ERROR-FREE; THAT IT WILL MEET YOUR REQUIREMENTS; THAT RESULTS WILL BE ACCURATE; OR THAT ERRORS WILL BE CORRECTED.

YOU ASSUME ALL RISK FOR ANY DAMAGE RESULTING FROM USE OF THE SERVICE, INCLUDING PERSONAL INJURY, PROPERTY DAMAGE, OR LOSS OF DATA.

11. No Investment Advice

THIS CLAUSE IS FUNDAMENTAL TO YOUR USE OF THE SERVICE. OptionData LLC is not a registered investment adviser, broker-dealer, or financial analyst. The Service and Data do not constitute investment, financial, or trading advice.

The Data and any analytics are provided for informational and educational purposes only and are not recommendations to buy or sell securities.

You are solely responsible for your own research and decisions. Trading options and other financial instruments involves substantial risk of loss and is not suitable for all investors. Past performance does not indicate future results.

Options involve risk and are not suitable for all investors. Prior to buying or selling an option, a person must receive a copy of Characteristics and Risks of Standardized Options from the Options Clearing Corporation.

12. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, OPTIONDATA LLC AND ITS AFFILIATES ARE NOT LIABLE FOR INDIRECT, PUNITIVE, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES, INCLUDING LOSS OF PROFITS, GOODWILL, USE, OR DATA.

IN NO EVENT WILL THE COMPANY TOTAL LIABILITY EXCEED THE TOTAL FEES PAID BY YOU DURING THE SIX (6) MONTHS BEFORE THE EVENT GIVING RISE TO THE CLAIM.

Some jurisdictions do not allow limitations on liability for incidental or consequential damages, so these limitations may not apply to you.

13. Indemnification

You agree to defend, indemnify, and hold harmless OptionData LLC, its affiliates, its data providers, and their officers, directors, employees, and agents from any claims or liabilities arising from your use of the Service, your violation of these Terms, or your violation of third-party rights.

This obligation survives termination of this Agreement.

14. Term and Termination

14.1 Term

This Agreement begins when you accept it and continues while you have an active Subscription Plan or otherwise use the Service.

14.2 Termination by You

You may terminate at any time by canceling your Subscription Plan and ceasing use. Termination is effective at the end of your current paid term, and prepaid fees are non-refundable.

14.3 Termination by the Company

• Termination for cause: the Company may terminate immediately if you materially breach these Terms, with no refund of prepaid fees.
• Termination without cause: the Company may terminate with at least 30 days notice and provide a pro-rata refund of unused prepaid fees for the remaining Subscription Term.

14.4 Modification and Cessation of Data

The Company may modify the content or format of Data or discontinue delivery at any time without advance notice. If Data delivery is discontinued, the Company will refund any prepaid amounts for Data not provided, as applicable.

14.5 Effect of Termination

Upon termination, all rights and licenses cease. You must stop using the Service and delete all copies of Data and Documentation in your possession or control. Sections 8, 10, 11, 12, 13, 14.5, and 18 survive termination.

15. Support

The Company is not responsible for providing technical support, maintenance, or corrections to previously delivered Data.

16. Privacy and Data Use

Your use of the Service is governed by the Privacy Policy, which is incorporated by reference. By using the Service, you acknowledge and agree to the collection, use, and sharing of your information as described in that policy. /privacy

17. Modifications to the Agreement

The Company may modify or replace this Agreement at its discretion. If a change is material, the Company will make reasonable efforts to provide at least 30 days notice. Continued use after changes become effective constitutes acceptance.

18. General Provisions