PredictIt API Status
Live, in-browser checks against PredictIt's public APIs. Refreshes every 15s.
Reachability
DNS / TCP / TLS round-trip — PredictIt blocks CORS
- Market Data FeedPublic market snapshot—mswarming up
- Homepagepredictit.org root reachability—mswarming up
PredictIt does not send permissive CORS headers, so the browser cannot read the response status — these checks confirm DNS, TCP and TLS reachability only.
About PredictIt
PredictIt is a real-money political prediction market operated as an academic research project by Victoria University of Wellington under a CFTC no-action letter. Markets are capped at 5,000 traders and $850 per contract.
PredictIt at a glance
How PredictIt works (under the hood)
PredictIt is operated by Victoria University of Wellington under a 2014 CFTC no-action letter that permits a small-scale academic prediction market focused on political research. The CFTC withdrew that letter in 2022, but ongoing litigation has kept PredictIt operating.
Position limits ($850 per contract, 5,000 traders per market) keep the market small enough to qualify as academic research. Liquidity is therefore much thinner than Polymarket or Kalshi, but PredictIt has the longest continuous political prediction-market history in the US.
Tech stack
- Operator
- Victoria University of Wellington
- Funding
- USD via debit card
- Fees
- 5% withdrawal + 10% on profits
- API
- Read-only public market data feed (no CORS)
Fees
PredictIt charges 10% on profits when a market closes plus 5% on withdrawals — the highest fee load of any major prediction market. These fees fund the academic research operation.
Liquidity & activity
Daily volume is concentrated on flagship presidential and congressional contracts. Position limits mean a single market can have at most 5,000 active traders; book depth is correspondingly capped.
Notable incidents
- Election nights — PredictIt has historically slowed under election-night traffic; the platform stays up but experiences degraded UX.
- 2022–2024 — Multiple legal proceedings around the no-action letter; service continued throughout.
How it differs from other platforms
PredictIt is most useful as a historical data source and small-stakes political market. For meaningful capital allocation, Kalshi has overtaken it on liquidity and Polymarket on selection.
What to watch during a live event
PredictIt historically slows under election-night traffic but has never gone fully dark on a US general election. If you see red here late on a first Tuesday in November, treat it as degraded UX rather than a full outage — the market-data feed usually keeps updating even when the trading UI stalls.
Any legal news around the no-action letter (appellate rulings, CFTC statements) is far more likely to affect PredictIt than a technical incident. This page tracks reachability, not regulatory status; check the PredictIt blog for the latter.
PredictIt vs other prediction markets
| Platform | Real money | Regulator | Chain | US access |
|---|---|---|---|---|
| Polymarket | Yes (USDC) | Unregulated | Polygon | Geoblocked |
| Kalshi | Yes (USD) | CFTC (DCM) | — | All 50 states |
| Manifold | No (Mana) | N/A | — | Yes |
| PredictIt ← | Yes (USD) | CFTC no-action | — | Limited |
| Limitless | Yes (USDC) | Unregulated | Base | Per terms |
| Futuur | Yes (multi-crypto) | Offshore | Off-chain ledger | Restricted |
| Myriad | Yes | Unregulated | Abstract L2 | Per terms |
Full breakdowns live on each platform's own status page. See also: Polymarket vs Kalshi · Best prediction markets 2026.
Data & methodology
Checks run from your browser every ~45 seconds. Latency reflects your network path to the endpoint, not the server alone. Historical uptime is logged hourly via an independent worker (rolling 30-day window). PredictIt does not send permissive CORS headers — browser checks confirm DNS / TCP / TLS only.
- Public market data feed— Read-only, no auth.
- Site root— Front-end reachability.
Frequently asked
Is PredictIt shutting down?
Why is PredictIt slow on election nights?
About this PredictIt status mirror
Our PredictIt mirror probes the public market-data feed at predictit.org/api/marketdata/all/ and the site root. PredictIt does not send permissive CORS headers, so browser-side checks confirm DNS, TCP and TLS reachability plus the fact that a fetch to the feed does not time out — the response body itself is opaque to the browser.
PredictIt is an academic prediction market operating under a CFTC no-action letter that has been the subject of continuous litigation since 2022. Downtime on PredictIt is more often planned maintenance than technical failure — the platform has one of the most stable long-run uptime records in this space.
This is an unofficial status page and is not affiliated with, endorsed by, or sponsored by PredictIt. All data is provided on a best-effort basis with no guarantees about accuracy or availability. polymarket.health does not place trades, hold funds, or store user data — see our about page and disclaimer.
Learn more
- Are Prediction Markets Legal in the US? (2026 Update)Kalshi is fully legal nationwide. Polymarket geoblocks the US. PredictIt operates under a CFTC no-action letter. Here's the full state of play.
- The Best Prediction Markets in 2026 (Ranked & Compared)Which prediction market should you use in 2026? It depends on where you live, what you want to trade, and how much capital you're moving.