Crypto Arbitrage Scanner Tools: What They Are and How to Use Them
A crypto arbitrage scanner is a tool that monitors prices across multiple exchanges in real-time and alerts you when profitable price differences (spreads) appear. Here is everything you need to know about using them effectively.
How Arbitrage Scanners Work
An arbitrage scanner continuously:
1. Fetches live prices from multiple exchanges via their APIs
2. Compares bid and ask prices for the same trading pair across exchanges
3. Calculates the gross spread between the cheapest and most expensive exchange
4. Factors in fees (trading fees, withdrawal fees) to show net profit
5. Alerts you when a profitable opportunity is detected
What to Look For in a Scanner
Not all scanners are created equal. The best ones include:
- Net-cost calculation: Shows profit AFTER all fees, not just raw spread
- Real-time data: Prices should update every few seconds
- Multiple exchanges: Coverage of at least 4–5 major exchanges
- Fee integration: Accurate, up-to-date fee data for each exchange
- Historical data: Shows how often spreads occur and how long they last
Free vs Paid Scanners
Free Options
- Our Net-Cost Arbitrage Calculator — shows live cross-exchange spreads with net profit after fees
- CoinMarketCap/CoinGecko — show prices across exchanges (but no fee calculation)
Paid Options
- Premium scanners with API alerts and automated execution
- Custom bots that can execute trades automatically
- Typically $50–$500/month depending on features
How to Use Our Scanner
Our Arbitrage Pairs Dashboard is a free, real-time scanner that:
1. Monitors BTC, ETH, SOL, XRP, and more across 5+ exchanges
2. Shows the buy exchange (cheapest) and sell exchange (most expensive)
3. Calculates gross spread AND net profit after maker/taker fees and withdrawal costs
4. Updates every few seconds for the latest data
Common Mistakes
- Ignoring fees: A 0.5% spread means nothing if fees are 0.6%
- Slow execution: By the time you manually trade, the spread may have closed
- Ignoring liquidity: A great spread on a thin order book will result in slippage
- Over-reliance: Scanners show opportunities, but you still need judgment to filter out false signals
Getting Started
1. Open our Arbitrage Dashboard
2. Look for pairs showing green (positive net profit)
3. Verify the spread on both exchanges manually
4. Execute if the numbers match and you are comfortable with the risk
Tip: Focus on pairs you are familiar with and exchanges where you already have verified accounts with funded balances.