$0.01
per call · USD Coin on Base
Cheapest venue to buy and richest to sell ONE pair on Arbitrum One across SushiSwap and Uniswap v3 fee tiers. Returns buyAt and sellAt (venue, price, tvlUsd), midSpreadBps, grossSpreadBps, optimalInput, venuesConsidered. Requires ?pair=SYM/SYM (e.g. WETH/USDC). Errors: 400 bad_pair, 404 not_routable, 502 upstream_read_failed. Ranks venues for one pair; to rank EVERY pair use /scan. Execution at a size is /slippage. Chain-pinned; bare /route = BSC.
Endpoint
GET https://x402.donnyautomation.com/arbitrum/route2
Calls / 30d
2
Unique payers / 30d
Aug 29
Last called
exact
Payment scheme
Call this service
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";
const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);
const res = await fetchWithPay("https://x402.donnyautomation.com/arbitrum/route", {
method: "GET",
});
const data = await res.json();curl -X GET \
"https://x402.donnyautomation.com/arbitrum/route?pair=WETH%2FUSDC" \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"chainId": 42161,
"network": "arbitrum",
"ts": "2026-07-31T00:00:00.000Z"
}Payment details
0x2740651e046c59ab2a6510401140643292d3a96fUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
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