cross-exchange-spread

What It Does

Live spread between Kraken, Coinbase, and Hyperliquid for arb detection. This signal is computed in real time from APEX Runner's live autonomous trading system operating across Kraken, Coinbase Advanced Trade, and Hyperliquid — not from backtests or third-party aggregators.

When to Use

Before routing orders between exchanges
To detect arb windows
As input to optimal-order-routing

How to Use

The agent makes an x402-authenticated GET request to:

https://apexrunner.ai/signals/cross-exchange-spread

The x402 client handles payment authorisation automatically. No API key, no account, no subscription required — just an EVM wallet with USDC on Base mainnet.

# Example using the x402-python client
from x402.client import x402_get

response = x402_get(
    url="https://apexrunner.ai/signals/cross-exchange-spread",
    private_key=os.environ["EVM_PRIVATE_KEY"]
)
print(response.json())

Example Response

{
  "kraken_btc": 67480.00,
  "coinbase_btc": 67492.00,
  "spread_usd": 12.00,
  "spread_bps": 1.78
}

Pricing

$0.10/call — standard price

Early adopters automatically receive 30% off ($0.07/call) until 2026-09-21. Discount tiers apply automatically based on wallet call history:

Early Adopter (0–9 calls): 30% off
Engaged (10–49 calls): 15% off
Loyal (50–199 calls): 15% permanent
VIP (200+ calls): 20% permanent

Check your tier: https://apexrunner.ai/signals/my-pricing

Related Signals

APEX Runner — autonomous AI crypto trading signals. apexrunner.ai