Arbitrage

{
  "arb_count": 3,
  "opportunities": [
    {
      "commence_time": "2026-06-06T14:00:00Z",
      "event": "Ascot 15:00",
      "guaranteed_profit_pct": 2.1,
      "stakes": [
        {
          "bookmaker": "Betfair",
          "odds": 3.8,
          "runner": "Enable",
          "stake_pct": 26.32
        },
        {
          "bookmaker": "Paddy Power",
          "odds": 2.6,
          "runner": "Frankel",
          "stake_pct": 38.46
        }
      ]
    }
  ],
  "scan_timestamp": "2026-06-06T12:00:00Z",
  "total_markets": 42
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://racingpulse.theaslangroupllc.com/api/arbitrage'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://racingpulse.theaslangroupllc.com/api/arbitrage' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.05 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.05" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.05 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fracingpulse.theaslangroupllc.com%2Fapi%2Farbitrage
const res = await pay("https://racingpulse.theaslangroupllc.com/api/arbitrage");
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.05 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.05"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://racingpulse.theaslangroupllc.com/api/arbitrage")
    print(res.status_code, res.text)