Execute

{
  "abort_conditions": [
    "Funding rate spread narrows below 0.02% net 8h",
    "Price diverges >5% between legs",
    "Either exchange restricts position"
  ],
  "execution_id": "arb-20260606-btc-perps-hl-binance",
  "execution_plan": {
    "estimated_total_time": "5-10 minutes",
    "steps": [
      {
        "action": "Fund Hyperliquid vault",
        "calldata": null,
        "contract_address": null,
        "critical": true,
        "description": "Transfer USDC to Hyperliquid L1 bridge: https://app.hyperliquid.xyz (no KYC required)",
        "gas_estimate": 0,
        "step": 1,
        "value_eth": "0"
      },
      {
        "action": "Open BTC-PERP long on Hyperliquid",
        "calldata": "{\"type\":\"order\",\"asset\":\"BTC\",\"isBuy\":true,\"sz\":0.15,\"limitPx\":67850,\"orderType\":{\"limit\":{\"tif\":\"Gtc\"}}}",
        "contract_address": null,
        "critical": true,
        "description": "Place $10,000 BTC-PERP long at market — will collect negative funding",
        "gas_estimate": 0,
        "step": 2,
        "value_eth": "0"
      },
      {
        "action": "Open BTCUSDT-PERP short on Binance",
        "calldata": null,
        "contract_address": null,
        "critical": true,
        "description": "Place matching $10,000 BTC short on Binance Futures — will receive positive funding",
        "gas_estimate": 0,
        "step": 3,
        "value_eth": "0"
      },
      {
        "action": "Monitor and rebalance",
        "calldata": null,
        "contract_address": null,
        "critical": false,
        "description": "Check positions every 8h at funding time. Rebalance if delta skews >2%.",
        "gas_estimate": 0,
        "step": 4,
        "value_eth": "0"
      }
    ],
    "strategy": "Delta-Neutral Perps Carry",
    "total_steps": 4
  },
  "financial_summary": {
    "break_even_price": null,
    "gas_cost_usd": 0,
    "gross_profit_usd": 1640,
    "net_profit_pct": 14.4,
    "net_profit_usd": 1440,
    "total_fees_usd": 200
  },
  "opportunity_summary": "Delta-neutral BTC carry: long Hyperliquid (funding -0.12%/8h) + short Binance (funding +0.045%/8h) = 62% APY",
  "opportunity_type": "perps_funding_carry",
  "pulse_suggestions": [],
  "required_wallet_setup": [
    "Hyperliquid: funded wallet — app.hyperliquid.xyz (no KYC)",
    "Binance: verified account with futures enabled"
  ],
  "risk_assessment": {
    "execution_risk": "medium",
    "market_risk": "medium",
    "mev_risk": "low",
    "mitigation": [
      "Use limit orders to avoid slippage",
      "Set stop-loss at 3% adverse move on either leg",
      "Monitor funding rate reversal daily"
    ],
    "overall_risk": "medium"
  },
  "transaction_parameters": {
    "chain_id": 8453,
    "deadline_seconds": 0,
    "gas_price_gwei": 0.001,
    "max_fee_per_gas_gwei": null,
    "slippage_tolerance_bps": 50
  },
  "validation": {
    "confidence": "high",
    "still_valid": true,
    "validation_notes": "Both funding rates confirmed live. Net 8h yield = 0.165%, annualized 60.7% APY."
  }
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://arbipulse.theaslangroupllc.com/api/execute?asset=BTC&chain=base&slippage_bps=50'

# 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://arbipulse.theaslangroupllc.com/api/execute?asset=BTC&chain=base&slippage_bps=50' \
  | 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 $0.75 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.75" });
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 $0.75 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Farbipulse.theaslangroupllc.com%2Fapi%2Fexecute
const res = await pay("https://arbipulse.theaslangroupllc.com/api/execute?asset=BTC&chain=base&slippage_bps=50");
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 $0.75 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.75"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://arbipulse.theaslangroupllc.com/api/execute?asset=BTC&chain=base&slippage_bps=50")
    print(res.status_code, res.text)