WORLD CUP WINNER39%
DEMOCRATIC PRESIDENTI…19%
REPUBLICAN PRESIDENTI…49%
PRESIDENTIAL ELECTION…20%
F1 DRIVERS' CHAMPION58%
NEXT PRIME MINISTER O…96%
Live markets · Real order books · Full API

Real markets. Real odds. Paper money.

Practice on live Polymarket markets with real order books and a CLOB-compatible API. $1,000 virtual balance — no wallet, no KYC, no risk.

Open the appRead the API docs
$1,000 paper balance · No wallet · No KYC
app.polysimulator.com/markets
$1,000.00
Solana Up or Down - July 10, 8:30AM-8:35AM ET · 5MNew 5-minute round every 5 minutes, 24/7
Live
Up or down at closecloses in 04:23
Up23¢
Down78¢
30,000+live markets
2,500+traders
80,000+simulated trades
$180M+simulated volume

Trades & volume as of June 2026.

Traders

Practice on live Polymarket markets with a $1,000 paper balance. No wallet, no KYC.

Open the appapp.polysimulator.com

Developers

Build on a CLOB-compatible REST + WebSocket API. Closed beta, live today.

Read the docsdocs.polysimulator.com

Investors & partners

Team, traction, and roadmap. Founded November 2025 at TU Munich.

About the company/company

The full live universe

Not a curated demo of five examples. Every market the poller tracks, with real Polymarket order books and live pricing.

Browse all markets
World Cup Winner
France39%
Argentina18%
Spain16%
Vol $4.1B50 outcomes
Democratic Presidential Nominee 2028
Gavin Newsom19%
Alexandria Ocasio-Cortez15%
Jon Ossoff12%
Vol $1.2B45 outcomes
Republican Presidential Nominee 2028
Robert F. Kennedy Jr.49%
J.D. Vance40%
Marco Rubio26%
Vol $671.0M36 outcomes
Presidential Election Winner 2028
JD Vance20%
Marco Rubio14%
Gavin Newsom11%
Vol $653.9M37 outcomes
API · closed beta

Built for traders who write code

Ship and validate a strategy in simulation before it ever touches real funds. CLOB-compatible endpoints, simulated fills against live Polymarket odds.

CLOB-compatible endpoints
Familiar order-book semantics — simulated fills against live Polymarket odds, never real capital.
REST + WebSocket
Place paper orders over REST; stream live prices and simulated fills over WebSocket.
Python SDK on PyPI
Sync + async + WebSocket clients. Install with pip install polysimulator.
A new round every 5 minutes
The Crypto Up/Down market settles a fresh 5-minute round, 24/7 — where most bot developers start.
POST /v1/orders · btc-usd-5m-updowncurl
# Place a paper order — simulated fills against live Polymarket odds
curl -X POST https://api.polysimulator.com/v1/orders \
  -H "Authorization: Bearer $PS_API_KEY" \
  -d '{
        "market": "btc-usd-5m-updown",
        "side": "BUY", "outcome": "UP",
        "type": "MARKET", "size": 100
      }'

# Stream live prices & simulated fills over WebSocket
wscat -c wss://api.polysimulator.com/v1/stream

Built at TU Munich, shipping since day one

Founded November 2025 at the Technical University of Munich. While most tools show a handful of example markets, PolySimulator runs live markets and a real API today — paper execution against real Polymarket order books, with a CLOB-compatible interface developers can call now.

AboutContact
  1. Nov 2025Founded at TU Munich, Garching bei München
  2. Dec 2025Live paper trading on real Polymarket order books
  3. Early 2026Sports, crypto, weather & mentions markets added
  4. NowTrading API — CLOB-compatible REST + WebSocket, closed betaLive
  5. In developmentBacktesting against historical market data

Real markets. Real odds. Paper money.

2,500+ traders competing this season · Start with $1,000.
Open the appTalk to the founders