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Best crypto prediction 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.

Updated

Ranked platforms

  1. Polymarket

    6.9/10preliminary
    Crypto⚠️ Restrictions

    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.

    Visit site →Read review

  2. Hedgehog Markets

    1.7/10preliminary
    CryptoAvailability unverified
    Visit site →Read review

  3. Opinion

    5.7/10preliminary
    Crypto❌ Unavailable

    United States named in the Restricted Jurisdictions list; trading not permitted. Terms of Use (no date shown), Restricted Jurisdictions clause.

    Visit site →Read review

  4. Predict.fun

    5.4/10preliminary
    Crypto❌ Unavailable

    USA named as a restricted jurisdiction; trading not permitted, content features only. Terms of Service last updated November 18, 2025.

    Visit site →Read review

  5. Trueo

    5.2/10preliminary
    Crypto❌ Unavailable

    Contracts and services are not offered to US Persons. Terms of Use (no date shown).

    Visit site →Read review

  6. Space

    2.6/10preliminary
    Crypto❌ Unavailable

    Terms of Service (no date shown) state the Services are not available to US Persons, including those accessing from US territory.

    Visit site →Read review

  7. Probable

    1.8/10preliminary
    Crypto❌ Unavailable

    United States is named on Probable's Restricted Jurisdictions page (no date shown); access and use prohibited for residents, citizens or persons located there.

    Visit site →Read review

Every platform reviewed

1. Polymarket

Largest on-chain prediction market by volume

6.9Prelim

Strengths

  • Deepest liquidity in the category on major markets
  • Fastest listing of new events
  • No maker trading fees under the published schedule
  • Public API with full order book access

Watch out

  • Requires a wallet and USDC — no fiat rails
  • International product has country restrictions; Polymarket US is separate
  • Thin depth on long-tail markets
  • Network fees apply to deposits and withdrawals
$2
Min deposit
7
Markets
2020
Since
Go to Polymarket →Full review

2. Hedgehog Markets

Permissionless prediction markets on Solana and Eclipse, with very thin books

1.7Prelim

Strengths

  • Trading mechanics are visible in the application itself
  • The venue states its own scope: permissionless prediction markets on Solana and Eclipse
  • Featured markets display their own liquidity figures, so the depth is visible before you connect
  • Runs on Solana and Eclipse, so settlement and balances are on a public chain rather than an operator’s ledger
  • No terms means no clause asking you to waive recourse — thin comfort, but several venues here do ask

Watch out

  • Nothing is published about how markets resolve: eleven likely paths 404 and six documentation subdomains do not resolve
  • Market content sits behind Connect Wallet, so per-market rules cannot be read before connecting
  • No terms, no privacy policy and no named operator
  • Featured markets showed $38 and $503 of liquidity — at that depth a position of any size is the market
  • Third-party descriptions of an oracle are uncorroborated by anything the venue publishes, so they are not used here
4
Markets
Go to Hedgehog Markets →Full review

3. Opinion

On-chain binary markets on BNB Chain; closed to the US, the UK and all of the EU

5.7Prelim

Strengths

  • The widest category set of any venue added to this site in September, including hourly crypto markets
  • Books were genuinely two-sided across four categories at once when we read them
  • Third in the category by reported volume, behind only Kalshi and Polymarket
  • Publishes concrete dispute terms — a window, a stake formula and the consequence of losing
  • Names its operator in its terms of use

Watch out

  • Closed to the United States, the United Kingdom and all of the European Union
  • The primary resolver is “Opinion AI”, with no account of its inputs, model or sources
  • The review step is written with no actor: who performs it is never identified
  • Whether the team can resolve or override a market itself is not addressed anywhere
  • Only one dispute is permitted per resolution, so the first challenger spends the market’s single appeal
  • No stated jurisdiction of incorporation, licence or regulator
5
Markets
Go to Opinion →Full review

4. Predict.fun

Non-custodial event contracts on BNB Chain, with yield on USDT collateral

5.4Prelim

Strengths

  • Non-custodial: the venue never holds your balance
  • Zero maker fee, so posting liquidity costs only the spread you offer
  • Yield paid on USDT collateral while it sits against an open position — unique among the venues we cover
  • Six of the seven categories we track, the widest verified breadth of any venue we built from primary sources
  • Names its operating entity, which most on-chain venues do not

Watch out

  • Its own documentation describes two incompatible resolution mechanisms, both live on the same day
  • The developer page for the deployed oracle states “No bonding or dispute mechanism (simplified trust model)”
  • Admins can flag questions for emergency resolution, documented in developer pages rather than in the user terms
  • A role holder can settle Chainlink market rounds manually
  • No licence, no regulator, and no stated jurisdiction of incorporation
6
Markets
Go to Predict.fun →Full review

5. Trueo

Prediction markets on Base where open positions earn yield; closed to the US and Canada

5.2Prelim

Strengths

  • A permissionless optimistic oracle: anyone may propose an outcome by posting a bond, opening a 12-hour challenge window
  • Four named escalation stages ending with 11 randomly selected attesters
  • Constrains its own privileged body — all Oracle Council decisions may be permissionlessly challenged
  • No admin override, emergency power or discretion clause attaches to market outcomes anywhere in the documentation
  • Names its operator and publishes a full restricted-territories list with “We do not make exceptions”

Watch out

  • None of the design is evidenced in operation: there is no public dispute record
  • The final escalation is gated at 250,000 liquid TRUE, putting the last word with large holders
  • Market creation is still restricted to Oracle Council members in the genesis phase
  • The sources a dispute is judged against are not fixed — alternatives may be used
  • No licence or regulator; Samoa incorporation carries no consumer protection a reader could invoke
4
Markets
Go to Trueo →Full review

6. Space

Prediction markets on Solana; no terms or documentation published

2.6Prelim

Strengths

  • Crypto markets resolve on a 15-minute TWAP with Pyth primary and Switchboard as a named fallback — manipulation-resistant by design
  • Real-world events require a 2-of-3 operator multisig rather than a single key
  • Publishes terms at all, which several venues in this cohort do not
  • Documents a 24-to-48-hour flagging route for incorrect resolutions

Watch out

  • The terms grant no right to flag: resolution criteria are “final and binding” and you waive claims over data sources, delays and voiding
  • Space “may cancel or void a Market at any time” and may extend the resolution period at sole discretion
  • It reserves the right to modify the underlying smart contracts at any time, which sits above the TWAP design
  • The AI validation step is undescribed — no model, inputs or evidence standard
  • The site carried no link to terms, privacy, legal, docs, about or FAQ, and /terms returned HTTP 500
  • No volume or depth data is published
5
Markets
Go to Space →Full review

7. Probable

BNB Chain prediction market with a published Predict.fun acquisition notice

1.8Prelim

Strengths

  • A public acquisition notice identifies Predict.fun as the acquiring platform

Watch out

  • Independent trading availability after the acquisition has not been verified
  • The refund and migration process has not been tested
  • Current operator, fees, eligibility and custody terms remain incomplete
2
Markets
Go to Probable →Full review

Jump to

How to choose

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.