Terms of Service

Last updated October 25, 2026

These terms cover your use of Backtest Vault ("we", "us"): the backtesting service, your account and your subscription. By starting a trial or a subscription, or by using your connector URL, you agree to them.

1. The service

Backtest Vault runs backtests of futures strategies (NQ, ES, GC) that you describe through your AI client, on historical market data held on our servers, and returns statistics about the results. Each run is saved to your private vault. You reach the service through a personal connector URL.

2. Your account and connector URL

• One account per person.
• Your connector URL works like a password: anyone who has it can use your account and its backtests. Keep it private. If it leaks, contact us and we will revoke it and issue a new one.
• You are responsible for what happens under your connector URL until you tell us it leaked.

3. Free trial

• During the trial you get the features of the plan you chose.
• A backtest counts when it runs and returns results. Re-running an identical saved backtest and runs that fail do not count.
• One free trial per person, across all plans. We recognise a repeat trial by email address and by a fingerprint of the payment card that Stripe provides (never the card number). A repeat trial checkout is cancelled before anything is charged, and you can subscribe without a trial instead.

4. Subscriptions and billing

• Plans are monthly subscriptions. After the first payment, your plan renews and is charged automatically every month until you cancel.
• Each plan includes monthly backtest credits: Starter 75, Trader 300, Pro 1,500. A backtest on 1-minute bars uses 2 credits; other timeframes use 1. Credits reset on the 1st of each calendar month (UTC) and unused credits do not carry over.
• Prices are in US dollars. Sales tax or VAT may be added depending on where you live.
• Payments are processed by Stripe and sold through Link, which acts as the merchant of record. Link's terms also apply to the payment.
• If we change the price of your plan, we will tell you before the new price applies to you, and you can cancel before it does.

5. Failed payments

If your first payment fails, backtests are paused until it goes through. Update your card from your billing link and they start again. If a later monthly payment fails, Stripe retries it; if it still cannot be collected, the subscription ends. Your saved runs stay readable either way.

6. Cancelling

Cancel anytime from your billing link (shown on the page after checkout, and returned by the usage tool in your AI client). Cancellation takes effect at the end of your current trial or billing month: you keep access until then and are not charged again. If you cancel during the trial, you can still use your remaining free backtests and you won't be charged. If you think you were charged in error, contact us.

7. Acceptable use

• Do not share, resell or sublicense access to the service or your connector URL.
• Do not try to extract, reconstruct or redistribute the underlying market data. The service returns statistics, not price data.
• Do not overload, probe or interfere with the service, or use it for anything unlawful.

We may suspend or close an account that breaks these rules.

8. Not investment advice

Backtests are hypothetical results computed on historical data. They are not investment advice or a recommendation to trade, and past performance does not predict future results. Trading futures involves substantial risk of loss. You alone are responsible for your trading decisions.

9. Your strategies and data

The strategies you test and the results are stored in your private vault. We do not share them or use them to train AI models. You can delete saved runs at any time. Our Privacy Policy explains what we collect and why.

10. Availability and liability

The service is provided "as is". Historical market data can contain errors or gaps, and the service may sometimes be unavailable. To the extent the law allows, we are not liable for indirect or consequential losses, including trading losses, and our total liability is limited to the amount you paid us in the 12 months before the claim.

11. Changes to these terms

We may update these terms. If a change materially affects you, we will tell you before it takes effect. Continuing to use the service after that means you accept the updated terms.

12. Contact

For payments, your card and cancelling, use your billing link. For anything else, including a leaked connector URL, a contact address will be listed here.