Terms of Service

1. Agreement

By using quantengines.com you agree to these terms. If you do not agree, please do not use the site.

2. What the service is

QuantEngines provides research and analytics tools — charts, screeners, backtesting, options analytics, and congressional trading data derived from public filings. It is an information service. It is not brokerage, investment advice, or portfolio management, and we never take custody of your money or place trades. This is set out in full in our Disclaimer, which forms part of these terms.

3. Cost

The site is currently free to use in full, and no part of it takes payment. If we ever introduce paid features we will publish the terms covering them before charging anyone; nothing here obliges you to pay for anything today.

4. Accounts

You can read the site without an account. If you create one, give accurate details, keep your credentials secure, and do not share the account. You are responsible for activity under your account. Tell us at hello@quantengines.com if you believe it has been compromised, and we can close it on request.

5. Acceptable use

You agree not to:

• Scrape, crawl, or otherwise extract data at a volume that degrades the service for others, or circumvent rate limits.
• Republish our compiled datasets or analytics wholesale as your own product. Quoting figures with attribution and a link is fine.
• Attempt to break, probe, or gain unauthorised access to the site, its APIs, or other users' accounts.
• Use the site to harass or make unfounded accusations against the public officials whose filings we publish.

6. Third-party data

Some data on this site originates with third parties, including government filing systems and market data vendors such as Polygon. Their material remains theirs, may be subject to their own terms, and may be delayed, incomplete, or wrong. We pass it on in good faith and do not warrant it.

7. Our content

The site's design, code, and written material are ours. Public filings and other public-record data are not, and we claim no ownership over them.

8. No warranty and limitation of liability

The service is provided "as is" and "as available", without warranty of any kind. We do not guarantee it will be accurate, uninterrupted, or available at all, and we may change or withdraw features at any time. To the fullest extent permitted by law, we are not liable for any trading loss, investment loss, lost profit, or other damage arising from your use of the site or reliance on anything published on it. Nothing in these terms excludes liability that cannot lawfully be excluded.

9. Changes

We may update these terms. The date at the top will change when we do, and continuing to use the site after that means you accept the revised terms.

10. Contact

Questions about these terms: hello@quantengines.com. Other channels are listed on the contact page.