Why this page is cautious
Availability rules, state-level treatment, and product access can change. A static page should not promise access.
US access
US availability is a high-intent search, but it is also a fact that can change. ForecastIndex does not guess eligibility; it points readers to current Polymarket checks and alternatives.
Use the table as a routing tool, then verify current platform rules directly before signup or participation.
| Reader question | Short answer | Next step |
| Can I sign up? | Verify current platform rules first. | Check Polymarket directly. |
| Can I trade? | Order placement may be restricted by location. | Check current geoblock status. |
| What if I cannot use it? | Compare alternatives. | Read Kalshi vs Polymarket and platform pages. |
| Should I use a referral link? | Only after eligibility checks. | Use the ForecastIndex link if it fits. |
Availability rules, state-level treatment, and product access can change. A static page should not promise access.
A site may be readable while trading or order placement is restricted. The practical question is what actions are available from your location.
Kalshi is useful in ForecastIndex comparisons because it captures a different regulated event-contract intent from crypto-native Polymarket searches.
ForecastIndex keeps the Polymarket CTA visible, but the page pushes eligibility checks before signup.
Primary referral pick
Polymarket is the main ForecastIndex CTA for eligible crypto-native readers. Verify availability, fees, funding method, and market rules before signing up.
No. ForecastIndex is informational and cannot determine your legal or account eligibility.
Kalshi is the clearest comparison for many US event-contract searches, but readers should verify its current rules too.
Track Is Polymarket Available in the US updates, fee changes, and platform comparisons. No trade calls, just market context.