1. Alpha Arcade
Algorand order-book prediction market for sports, politics and crypto
5.1Prelim
- Taker 0.07×p×(1−p); maker 0
- Fees
- 7
- Markets
On-chain prediction markets only: platforms where you trade from your own wallet and settle in stablecoins, ranked by Editor Score.
They reach more countries than regulated exchanges, and most publish a list of the jurisdictions they block. They also shift risk to you: you hold your own funds, and a disputed market is decided by an oracle process rather than an exchange’s rulebook.
Live prices: Bitcoin and Ether price levels for 2026.
Not on Alpha Arcade’s list of restricted jurisdictions. Absence from the list does not by itself establish that an individual may use the platform.
Not on Delphi’s list of restricted jurisdictions. Absence from the list does not by itself establish that an individual may use the platform.
The international polymarket.com site is closed to US residents: no deposits and no trades. The help centre lists the US as blocked and the API docs list it as close-only. US residents are sent to the separate Polymarket US app, run by QCX LLC (a CFTC DCM). Polymarket US state-level eligibility was not verified because its ToS page loads its text client-side.
General Terms: users must not reside in, be citizens of or be incorporated in the USA; using a VPN to get round this is prohibited.
United States named in the Restricted Jurisdictions list; trading not permitted. Terms of Use (no date shown), Restricted Jurisdictions clause.
USA named as a restricted jurisdiction; trading not permitted, content features only. Terms of Service last updated November 18, 2025.
Contracts and services are not offered to US Persons. Terms of Use (no date shown).
United States of America is a Prohibited Territory; trading in Supported Contracts not permitted. Terms of Use updated January 13, 2026, section 2 Prohibited Territories.
Platform is not available for trading to users from the USA. Terms of Service last updated September 15, 2026, section 1 Eligibility.
Terms (updated 15 Jun 2026) s.1.6 treats US residents, US-located persons and US entities as Restricted Persons barred from the whole interface, including HIP-4 outcome markets.
Listed as a restricted jurisdiction in Prophet Prediction Market’s terms.
Terms of Service (no date shown) state the Services are not available to US Persons, including those accessing from US territory.
United States named as a Restricted Jurisdiction; Restricted Persons must not use the Services. Terms & Conditions last updated September 25, 2025 (embedded at xmarket.app/terms), section 3.2.
United States is named on Probable's Restricted Jurisdictions page (no date shown); access and use prohibited for residents, citizens or persons located there.
Algorand order-book prediction market for sports, politics and crypto
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Read three things before depositing: the restricted-jurisdiction list in the terms (each review cites it), the fee on your trade size including network costs, and how the platform resolves a market it cannot settle cleanly. A venue with no refund path for an ambiguous question is a structural risk, not an edge case.
Token rewards and points programmes are common here. They are marketing; fees, depth and dispute handling matter more over time.