the402 endpoint detail

← All endpoints

arbipulse.theaslangroupllc.com api spread-tick

https://arbipulse.theaslangroupllc.com/api/spread-tick

payable, partial

Cross-exchange spread tick — ONE $0.02 call returns the live executable spread for a pair across Binance, Coinbase, Kraken, Bybit: best bid venue, best ask venue, spread in bps, and a deterministic TRADE / THIN / NONE verdict. Built for arbitrage monitoring loops; escalate to /api/crypto ($0.07) for the full CEX arbitrage read with fees and transfer paths. 30s freshness, no LLM in the path.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse. It advertises 14 ways to pay and only 13 of them are usable.
Price
$0.02
Network
base
Pay to
0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
186 ms
Payment options
13 usable of 14
Last checked
2026-08-10T09:14:47.724Z (1d ago)
Category
ai-inference

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Farbipulse.theaslangroupllc.com%2Fapi%2Fspread-tick"