$0.01
per call · USD Coin on Base
Decode and explain any EVM blockchain transaction across 11 chains (Base, Ethereum, Arbitrum, Optimism, Avalanche, Polygon, Mantle, Monad, Plasma, BSC, Hyperliquid). Get a human-readable summary of swaps, transfers, approvals, DeFi interactions, and more.
Endpoint
POST https://x402.ottoai.services/tx-explainer5
Calls / 30d
3
Unique payers / 30d
Sep 3
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.ottoai.services/tx-explainer", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
"chain": "base",
"outputLevel": "summary",
"txHash": "0x91985d4134da826cd05ee7e629b68f0d3ebbbe14198c7d98a4f9e50c1ff46041"
}),
});
const data = await res.json();curl -X POST \
"https://x402.ottoai.services/tx-explainer" \
-H "Content-Type: application/json" \
-d '{"chain":"base","outputLevel":"summary","txHash":"0x91985d4134da826cd05ee7e629b68f0d3ebbbe14198c7d98a4f9e50c1ff46041"}' \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"chain": "Base",
"explorerUrl": "https://basescan.org/tx/0x...",
"status": "success",
"summary": "Swapped 0.5 ETH for 1,247.83 USDC via Uniswap V3",
"txHash": "0x..."
}Payment details
0x0e84ddedaae6a779c462c22a59f301ec31b6b808USD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
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