Approval Enumerate

{
  "address": "0xf962...1afa",
  "approvals": [
    {
      "allowance": "115792089237316195423570985008687907853269984665640564039457584007913129639935",
      "allowanceFormatted": "unlimited",
      "decimals": 6,
      "lastApprovalBlock": 30000000,
      "lastApprovalTx": "0x...",
      "risk": "high",
      "spender": "0x111111125421ca6dc452d289314280a0f8842a65",
      "symbol": "USDC",
      "token": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
      "unlimited": true
    }
  ],
  "chainId": 8453,
  "complete": true,
  "counts": {
    "active": 1,
    "approvalEvents": 12,
    "pairsChecked": 5,
    "pairsSeen": 5,
    "unreadable": 0
  },
  "coverageNote": "ERC-20 allowances only: Permit2 sub-allowances and NFT operator approvals (setApprovalForAll) are not covered. \"none\" does not mean the wallet is safe.",
  "highRiskCount": 1,
  "reason": null,
  "reasons": [],
  "signed": false,
  "status": "ok"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://x402-research-iota.vercel.app/api/x402/approval-enumerate?address=0xf9623fab6780984eacac443158c0309519451afa'

# 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://x402-research-iota.vercel.app/api/x402/approval-enumerate?address=0xf9623fab6780984eacac443158c0309519451afa' \
  | 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 $0.03 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.03" });
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 $0.03 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fx402-research-iota.vercel.app%2Fapi%2Fx402%2Fapproval-enumerate
const res = await pay("https://x402-research-iota.vercel.app/api/x402/approval-enumerate?address=0xf9623fab6780984eacac443158c0309519451afa");
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 $0.03 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.03"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://x402-research-iota.vercel.app/api/x402/approval-enumerate?address=0xf9623fab6780984eacac443158c0309519451afa")
    print(res.status_code, res.text)