Cast Oracles • Arbitrage

Crypto Arbitrage Scanner

Scan spreads across venues and surface opportunities with practical checks (fees, slippage, latency, liquidity). Deep details require an unlock and will auto-attach x402-session + x402-tx.

Scanner

Live x402: not unlocked

Mode

Pair / Route

Amount

Auto refresh

Deep details (x402)

Best Spread (DEX)

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Best Spread (CEX)

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Best Cross-Venue

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DEX ↔ DEX (on-chain)

Route	Best	Worst	Spread	Notes
Run a scan to see results.

CEX ↔ CEX (public)

Symbol	Best Ask	Best Bid	Spread	Notes
Run a scan to see results.

How to read spreads: a positive spread can disappear fast. Always check: trading fees, withdrawal/deposit fees, gas, slippage, latency, and liquidity depth. For DEX, a “real” arb usually needs a round-trip route and accurate amounts (and you must account for MEV).

Raw Output

JSON

Exactly what the backend returned (including previews if it returned HTML instead of JSON).

{}

Gateway Base URL

Leave blank if your Nginx proxies /api/* to the gateway. Otherwise set the full URL.