Source Comparison
Compare prediction market and forecasting sources side by side: coverage, volume, liquidity, participation, and methodology.
Data health
| Venue | Freshness | Open markets | Note |
|---|---|---|---|
 Polymarket | Unknown | 0 | — |
 Kalshi | Unknown | 0 | — |
 Metaculus | Unknown | 0 | — |
 PredictIt | Unknown | 0 | — |
 Limitless | Unknown | 0 | — |
 Manifold Markets | Unknown | 0 | — |
 Smarkets | Unknown | 0 | — |
 Rothera | Unknown | 0 | — |
 Futuur | Unknown | 0 | — |
 Myriad | Unknown | 0 | — |
 ForecastEx | Unknown | 0 | — |
Polymarket
polymarket.comDecentralized prediction market on Polygon. No KYC required. Settles in USDC via UMA oracle.
Check availability
Total Events
0
0 open events
Total Volume
$0
$0 24h volume
Total Liquidity
$0
0 avg outcomes
Resolution evidence
Resolution evidence unavailable.
Kalshi
kalshi.comCFTC-regulated prediction exchange. KYC required. US only. Settles in USD via central limit order book.
Check availability
Total Events
0
0 open events
Total Volume
$0
$0 24h volume
Total Liquidity
$0
0 avg outcomes
Resolution evidence
Resolution evidence unavailable.
Metaculus
www.metaculus.comTotal Events
0
0 open events
Total Volume
$0
$0 24h volume
Total Liquidity
$0
0 avg outcomes
Resolution evidence
Resolution evidence unavailable.
PredictIt
www.predictit.orgUS-focused prediction market centered on politics and public events. Tradeable contracts are available, but public market-depth data is limited compared with larger exchange-style venues.
Check availability
Total Events
0
0 open events
Total Volume
$0
$0 24h volume
Total Liquidity
$0
0 avg outcomes
Resolution evidence
Resolution evidence unavailable.
Limitless
limitless.exchangeOn-chain prediction market built on Base. Markets are fully collateralized in USDC and settled on-chain. No KYC required — connect a wallet to trade.
AMM / CLOBSettles in USDCNo KYCCheck availability
Total Events
0
0 open events
Total Volume
$0
$0 24h volume
Total Liquidity
$0
0 avg outcomes
Resolution evidence
Resolution evidence unavailable.
Manifold Markets
manifold.marketsPlay-money prediction market platform where anyone can create markets on any topic. Uses Mana (M$), a free virtual currency. High market breadth makes it a strong signal for crowd forecasting on niche topics.
Settles in Mana (M$)No KYC
Total Events
0
0 open events
Total Volume
$0
$0 24h volume
Total Liquidity
$0
0 avg outcomes
Resolution evidence
Resolution evidence unavailable.
Smarkets
smarkets.comSmarkets
Order bookKYC requiredCheck availability
Total Events
0
0 open events
Total Volume
$0
$0 24h volume
Total Liquidity
$0
0 avg outcomes
Resolution evidence
Resolution evidence unavailable.
Rothera
www.rothera.ioTotal Events
0
0 open events
Total Volume
$0
$0 24h volume
Total Liquidity
$0
0 avg outcomes
Resolution evidence
Resolution evidence unavailable.
Futuur
futuur.comTotal Events
0
0 open events
Total Volume
$0
$0 24h volume
Total Liquidity
$0
0 avg outcomes
Resolution evidence
Resolution evidence unavailable.
Myriad
myriad.marketsTotal Events
0
0 open events
Total Volume
$0
$0 24h volume
Total Liquidity
$0
0 avg outcomes
Resolution evidence
Resolution evidence unavailable.
ForecastEx
www.forecastex.comTotal Events
0
0 open events
Total Volume
$0
$0 24h volume
Total Liquidity
$0
0 avg outcomes
Resolution evidence
Resolution evidence unavailable.
| Polymarket | Kalshi | Metaculus | PredictIt | Limitless | Manifold Markets | Smarkets | Rothera | Futuur | Myriad | ForecastEx | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Total Events | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Open Events | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Closed Events | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total Volume | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| 24h Volume | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Total Liquidity | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Avg Outcomes | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Liquidity model | — | — | — | — | AMM / CLOB | — | Order book | — | — | — | — |
| Settlement currency | — | — | — | — | USDC | Mana (M$) | — | — | — | — | — |
| KYC / Identity | — | — | — | — | Not required | Not required | Required | — | — | — | — |
| Taker fee | — | — | — | — | — | — | — | — | — | — | — |
| Maker fee | — | — | — | — | — | — | — | — | — | — | — |
| Geographic access | Check availability | Check availability | Forecast/play-money source | Check availability | Check availability | Forecast/play-money source | Check availability | Forecast/play-money source | Forecast/play-money source | Forecast/play-money source | Forecast/play-money source |
Platform availability by country
Not all platforms are available in every country. See which platforms you can access based on where you are.