CrossFin

Quickstart ​

Start in under 2 minutes with free endpoints across 7 exchanges (Bithumb, Upbit, Coinone, GoPax, Binance, OKX, Bybit).

Step 1: Check health ​

bash
curl https://crossfin.dev/api/health

Step 2: Explore exchange network ​

bash
curl https://crossfin.dev/api/route/exchanges
bash
curl https://crossfin.dev/api/route/status
bash
curl "https://crossfin.dev/api/route/fees?coin=XRP"

Returns all 7 exchanges with supported coins, online status, and fee schedules.

Step 3: Free arbitrage preview ​

bash
curl https://crossfin.dev/api/arbitrage/demo

Top 3 kimchi premium pairs with EXECUTE/WAIT/SKIP decisions.

Step 4: Free ACP routing quote ​

bash
curl -X POST https://crossfin.dev/api/acp/quote \
  -H "Content-Type: application/json" \
  -d '{"from":"bithumb:KRW","to":"binance:USDC","amount":5000000}'

Returns optimal route with bridge coin, fees, and alternatives. No payment required.

Step 5: Paid optimal route (x402) ​

GET /api/premium/route/find?from=bithumb:KRW&to=binance:USDC&amount=5000000&strategy=cheapest

Full route analysis ($0.10). Use an x402-capable client with Base USDC settlement.