What the difference actually is, why paper mode uses real prices, and how to switch a bot between modes.
In paper mode, your bot tracks real Polymarket trades and simulates what would have happened if it had placed those orders — using actual market prices, fees, and slippage estimates.
Nothing is sent to Polymarket. No real orders are placed. No real money moves.
Paper P&L is as accurate as the simulation can make it. Fees and slippage are estimated from actual market conditions, not assumed to be zero.
When you switch a bot to live, it places actual orders on Polymarket through your connected wallet. Real money moves in and out of real positions.
Live mode respects all the same risk controls as paper mode — stop-losses, budgets, and caps still apply.
One bot can be live while every other bot is in paper. Mode is not a global account setting. This lets you:
Switching from live back to paper stops all open orders first. Positions that are already open remain open until they close naturally or are manually exited.
| Paper | Live | |
|---|---|---|
| Orders placed | No | Yes |
| P&L | Simulated | Real |
| Fees | Estimated | Real (deducted) |
| Capital at risk | None | Yes |
| Risk controls active | Yes | Yes |
Paper mode estimates slippage based on market liquidity. In live mode, actual fill prices may differ slightly depending on order book depth at execution time. For liquid markets, the difference is small. For illiquid markets, it can be larger.
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