$0.01
per call · USD Coin on Base
Uniswap v4 hook capability scan on Base mainnet. Decodes all 14 permission bits from the hook address per v4-core Hooks.sol, flags swap custody, fee-taking and EIP-1967 upgradeability, and verifies source by Basescan/Sourcify/Blockscout consensus. Returns custodyClass PASSIVE|FLOW_CONTROL|FEE_TAKING|SWAP_CUSTODY|OPAQUE, flags[], riskFlags[] and verificationState. Requires ?address=0x + 40 hex. Errors: 400 invalid_address, 502 analysis_failed. Capability analysis - it never outputs SAFE.
Endpoint
GET https://x402.donnyautomation.com/v4hooks3
Calls / 30d
2
Unique payers / 30d
Sep 2
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/v4hooks", {
method: "GET",
});
const data = await res.json();curl -X GET \
"https://x402.donnyautomation.com/v4hooks?address=0x000052423c1dB6B7ff8641b85A7eEfc7B2791888" \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"address": "0x000052423c1db6b7ff8641b85a7eefc7b2791888",
"chainId": 8453,
"custodyClass": "SWAP_CUSTODY",
"deployed": true,
"disclaimer": "Capability analysis of on-chain state. We classify what a hook CAN do; we never output SAFE.",
"flags": [
"beforeSwap",
"afterSwap",
"beforeSwapReturnDelta",
"afterSwapReturnDelta"
],
"network": "base",
"riskFlags": [
"SWAP_DELTA_CUSTODY"
],
"upgradeable": false,
"verificationState": "VERIFIED",
"verified": true
}Payment details
0x2740651e046c59ab2a6510401140643292d3a96fUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
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