What is paper trading? How to practise crypto trading for free

What paper trading means

Paper trading is practice trading with pretend money. The name comes from the days when traders wrote their trades on paper to test an idea before risking money on it. Today a paper account is software: it starts with a virtual balance, takes your orders, and fills them against live market prices instead of sending them to an exchange.

Everything else behaves as if it were real. The account tracks the coins you hold, the cash you have left, the fees you paid and the result of each trade. You can watch a strategy make decisions in today's market without a single real dollar at stake.

For crypto, paper trading is especially useful because the market never closes. A strategy that only triggers at 3 a.m. on a Sunday will still trigger on paper, and you get to see what it did when you wake up.

How a paper trade works, step by step

1. A rule triggers. For example: "Buy $50 of BTC when it falls 5% within 24 hours."
2. The order is simulated. The paper account takes the current live price from the exchange, applies the exchange's fee, and records a buy of about $50 of BTC.
3. The position is tracked. From then on the account values your BTC at the live price, so you see the open result rise and fall.
4. An exit rule closes it. When the price reaches your take-gain level or your stop-loss, the account simulates the sale, again with the fee, and records the final result of the trade.
5. Everything is logged. A good paper account records why each trade happened and when the strategy chose to stay out, not just the numbers.

What paper trading can tell you

• Whether the rules do what you meant. Many strategies fail not because the idea is bad but because the rules say something slightly different from what you intended. Seeing them act on live prices exposes that quickly.
• How often the strategy trades. A rule you thought would trade weekly might trade daily, or almost never. Frequency changes fees, attention and risk.
• How it behaves in the current market. A backtest shows the past. Paper trading shows how the rules handle the market you are actually in.
• What the fees add up to. Small fees on many trades can turn a winning rule into a losing one. Paper results that include fees show this before it costs you.
• How you feel watching it. Even with virtual money, watching an open position fall teaches you whether you could live with the strategy's worst days.

What paper trading cannot tell you

Paper trading is a rehearsal, not the performance. Three things differ when money is real:

• Fills. A simulated order fills at the live price. A real market order fills at the best price available, which in a fast or thin market can be worse. That difference is called slippage.
• Size. A paper order of any size fills instantly. A large real order can move the price against you, especially on smaller coins.
• Emotion. Losing virtual money is easy. Losing real money tempts people to switch off a strategy at its worst moment, or to override a stop-loss "just this once".

None of this makes paper trading less useful. It means the step after paper should be a small live start, not your full amount.

Paper trading versus backtesting

The two are often confused, and they answer different questions.

• Backtesting replays past prices, covering months or years in seconds. It answers: would these rules have worked? Its blind spot is that the future may not look like the past.
• Paper trading runs forward on live prices, in real time. It answers: do these rules behave as I expect now? Its blind spot is that a short window holds few trades.

Use both, in that order: a backtest to choose rules worth trying, then paper trading to watch them behave before any real order.

A worked example

Say you paper trade the BTC Dip Buyer with $10,000 of virtual money for four weeks:

• Week 1: BTC drifts up. The agent stays out every day and logs why: BTC never fell 5% within 24 hours.
• Week 2: BTC falls 5.3% overnight. The agent buys $50 of BTC. Three days later the price is 4% above the buy, and the agent sells.
• Week 3: BTC falls sharply twice. The agent buys twice, reaching its limit of 2 open buys. One sale hits the stop-loss at 6% below the buy price.
• Week 4: quiet again. No trades.

Four weeks gave you three trades, one loss and one week where the open-buy limit mattered. That is useful: you have seen every rule act at least once. It is also only three trades, which is why you would not judge the strategy on paper results alone. This is an illustrative example, not a real result.

How to paper trade a crypto strategy on TradeCorgi

1. Describe the strategy in plain words. Your Corgi asks only for what is missing, such as the stop rule.
2. Confirm the strategy card, which shows the exact rules the agent will follow.
3. Check the backtest, which includes fees and shows the worst drop next to simply holding the coin.
4. Start the paper agent. It runs around the clock on live prices with virtual money, and checks the market at most once a minute.
5. Read the decision log. Every trade and every skipped trade comes with the rule that caused it.
6. Go live small, if you choose. In its first week, a live agent uses at most 20% of the amount you plan.

The Sandbox plan is free and includes one paper agent and 90 days of backtest history.

A checklist before you move from paper to live

• The strategy has traded several times on paper, and stayed out several times.
• Every trade in the log matches what you expected the rules to do.
• You have seen at least one stop-loss or worst case, and you could live with it in real money.
• The result after fees is still worth having.
• You know the most you are willing to lose in a day, and it is set as the daily loss limit.
• Your exchange key is trade-only, with withdrawals off.