Terms of service

Plain terms for a plain service. By creating an account or using QuarterLine, you agree to these terms.

What QuarterLine is

QuarterLine is an educational information service. It publishes a live view of Kalshi's 15-minute BTC contracts as its system reads them, the locks its rules produce, and the full graded record of those locks. It is not financial advice, it does not place trades for you, and it is not affiliated with Kalshi. Any trade you place is your own decision, in your own account, at your own risk.

Accounts

Accounts are free. One account per person. Keep your password to yourself — your membership is attached to your account and is not transferable. An account plus the guide quiz earns one free day (24 hours) of the live view and the full record; the trial is one per person, starts when you pass the quiz, and needs no payment card.

Subscriptions and billing

Every paid plan gives the same full access: the live view and the full record. Plans are billed through Stripe and renew automatically at the end of each period (day, week, month, or year, per the plan) until cancelled. You can manage or cancel your membership anytime from your account page, which opens Stripe's billing portal; cancellation takes effect at the end of the period you have paid for, and access runs until then. Founding members keep the $45/month price for as long as their founding membership stays continuously active; if a founding membership lapses or is cancelled, the founding price is gone and the standard price applies to any later subscription. Prices for standard plans may change in the future; a change would apply from your next renewal, never retroactively.

The record

The published record is computed from the system's stored locks and graded against Kalshi's official settlements. It is append-only: locks are not edited or deleted after grading. Figures are provided as-is for education. Past performance does not guarantee future results, and a fully published record does not make the underlying activity safe — prediction-market contracts can lose their full value.

Fair use

Do not share your login, scrape the live view to redistribute the signal, or resell access. Membership is for one person's own viewing. Accounts used to redistribute the service may be closed without a refund for the current period.

Availability and liability

We work to keep the live view current, but the service depends on third-party market data and may be delayed or interrupted; the page always shows how fresh its data is. The service is provided "as is" without warranties. To the extent the law allows, QuarterLine is not liable for trading losses or for indirect damages arising from use of the service. Nothing in these terms limits liability that cannot be limited by law.

Changes

If these terms change materially, the new version will be posted on this page before it takes effect for existing members' next renewal.