Dex

{
  "amount_usd": 50000,
  "best_aggregator_route": "1inch or Paraswap for best execution — they auto-route across pools",
  "dex_arb_opportunities": [
    {
      "bridge_cost_usd": 2.5,
      "buy_chain": "Base",
      "buy_dex": "Aerodrome",
      "buy_price": 3840.85,
      "execution_path": [
        "Buy WETH on Aerodrome (Base)",
        "Bridge via Across Protocol",
        "Sell on Trader Joe (Arbitrum)"
      ],
      "flash_loan_eligible": false,
      "gas_cost_usd": 0.8,
      "gross_spread_pct": 0.069,
      "mev_risk": "low",
      "net_profit_pct": -0.03,
      "net_profit_usd": -14.8,
      "sell_chain": "Arbitrum",
      "sell_dex": "Trader Joe",
      "sell_price": 3843.5,
      "swap_fee_cost_pct": 0.1,
      "type": "cross-chain",
      "viable": false
    }
  ],
  "execution_tools": [
    {
      "description": "Best DEX aggregator, auto-routes through optimal path",
      "name": "1inch",
      "url": "https://app.1inch.io"
    },
    {
      "description": "Fastest cross-chain bridge, 1-5 min transfers",
      "name": "Across Protocol",
      "url": "https://across.to"
    }
  ],
  "mev_context": "Same-chain DEX arb >0.1% spread is captured by MEV bots within 1-2 blocks. Manual DEX arb is only viable cross-chain or during extreme volatility.",
  "price_landscape": [
    {
      "chain": "Ethereum",
      "dex": "Uniswap V3",
      "liquidity_usd": 48000000,
      "price_usd": 3842.1
    },
    {
      "chain": "Base",
      "dex": "Aerodrome",
      "liquidity_usd": 12000000,
      "price_usd": 3840.85
    },
    {
      "chain": "Arbitrum",
      "dex": "Trader Joe",
      "liquidity_usd": 8000000,
      "price_usd": 3843.5
    }
  ],
  "pulse_suggestions": [],
  "scan_time": "2026-06-06T12:00:00Z",
  "token": "WETH"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://arbipulse.theaslangroupllc.com/api/dex?amount_usd=50000&token=WETH'

# 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/dex?amount_usd=50000&token=WETH' \
  | 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 $0.1 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.1" });
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 $0.1 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Farbipulse.theaslangroupllc.com%2Fapi%2Fdex
const res = await pay("https://arbipulse.theaslangroupllc.com/api/dex?amount_usd=50000&token=WETH");
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 $0.1 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.1"})
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/dex?amount_usd=50000&token=WETH")
    print(res.status_code, res.text)