Evm Tx History

{
  "address": "0xd8dA6BF26964aF9D7eed9e03E53415D37aA96045",
  "has_more": true,
  "native_fees_paid": 0,
  "network": "base",
  "source": "Blockscout (https://base.blockscout.com)",
  "transactions": [
    {
      "a": {
        "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
        "contract": true,
        "ens": "vitalik.eth",
        "name": "Vb 5",
        "scam": null
      },
      "date": "2026-09-29T18:17:57.000000Z",
      "failure_reason": null,
      "from": {
        "address": "0x69bAdF095B03d62e97445EB0142e6488d19fF38B",
        "contract": true,
        "ens": null,
        "name": null,
        "scam": null
      },
      "hash": "0xcde788b2a1fd8778da181801317e8b56080cfe285987400abe83ad2f03a0b5a0",
      "method": null,
      "native_fee": 1.46766326215e-7,
      "native_value": 1e-7,
      "status": "success",
      "type": [
        "coin_transfer",
        "contract_call"
      ]
    },
    {
      "a": {
        "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
        "contract": true,
        "ens": "vitalik.eth",
        "name": "Vb 5",
        "scam": null
      },
      "date": "2026-09-28T15:38:51.000000Z",
      "failure_reason": null,
      "from": {
        "address": "0x6b339848CfD7aABA6Cacbe964E069C0fDbCEffb1",
        "contract": false,
        "ens": null,
        "name": null,
        "scam": null
      },
      "hash": "0xc68c095e090ee0cce4089f524f87d6ddaea1aed1ad9204044f6c5dd312b539b2",
      "method": null,
      "native_fee": 3.11880239849e-7,
      "native_value": 1e-7,
      "status": "success",
      "type": [
        "coin_transfer",
        "contract_call"
      ]
    }
  ]
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.vextorium.com/v1/evm-tx-history' \
  -H 'content-type: application/json' \
  --data-raw '{"address":"0xd8dA6BF26964aF9D7eed9e03E53415D37aA96045","limit":2,"network":"base"}'

# 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 - -X POST 'https://api.vextorium.com/v1/evm-tx-history' \
  -H 'content-type: application/json' \
  --data-raw '{"address":"0xd8dA6BF26964aF9D7eed9e03E53415D37aA96045","limit":2,"network":"base"}' \
  | 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 $0.004 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.004" });
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 $0.004 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.vextorium.com%2Fv1%2Fevm-tx-history&method=POST
const res = await pay("https://api.vextorium.com/v1/evm-tx-history", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "address": "0xd8dA6BF26964aF9D7eed9e03E53415D37aA96045",
    "limit": 2,
    "network": "base"
  }),
});
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 $0.004 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.004"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://api.vextorium.com/v1/evm-tx-history",
        json={
            "address": "0xd8dA6BF26964aF9D7eed9e03E53415D37aA96045",
            "limit": 2,
            "network": "base",
        },
    )
    print(res.status_code, res.text)