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API console

Keys, limits and usage for the PolySimulator trading API.

Start with a free key

Paper-trade Polymarket markets over a REST API: read live and historical order books, place simulated orders against real depth, and stream your fills. The free tier trades against a $100 simulated wallet that cannot be topped up, so you can evaluate the whole loop before paying anything.
Sign in to create a keyRead the quickstart

Plans

Free

$0
  • 2 requests/sec
  • 120/min
  • 1 websocket
  • $100 wallet, no top-ups

Pro

$9.99/mo
  • 30 requests/sec
  • 1,800/min
  • 3 websockets
  • $10,000 wallet

Pro+

$29.99/mo
  • 60 requests/sec
  • 3,600/min
  • 10 websockets
  • $25,000 wallet
Rate limits are per key. Every response carries x-ratelimit-remaining.
Compare plans and subscribeFree needs no subscription — the key above works immediately.
PolySimulator

The flight simulator for prediction markets. Practice trading with real odds and zero risk.

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This site is for educational purposes. Virtual currency used here has no money value. Not affiliated with Polymarket or Kalshi.

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