Userscript for exporting credit card transactions from Amazon.com

amazon_transaction_exporter.user.js

// ==UserScript==
// @name         Amazon transactions exporter
// @namespace    https://hyunsu-cho.io/
// @version      2025-09-13
// @description  Compile list of credit card transactions from Amazon.com
// @author       Hyunsu Cho
// @match        https://www.amazon.com/cpe/yourpayments/transactions
// @icon         https://www.google.com/s2/favicons?sz=64&domain=tampermonkey.net
// @grant        none
// @require      https://code.jquery.com/jquery-3.6.0.min.js
// @require      https://raw.githubusercontent.com/eligrey/FileSaver.js/master/dist/FileSaver.min.js
// ==/UserScript==

function parse_transaction(transaction, date) {
    let payment_method = transaction.children("div").eq(0).children("div").eq(0).find("span").text();
    let amount = transaction.children("div").eq(0).children("div").eq(1).find("span").text();
    let order = transaction.children("div").eq(1).find("a.a-link-normal");
    return {
      date: date,
      payment_method: payment_method,
      amount: amount,
      order_no: order.text(),
      order_url: order.attr("href")
    };
}

function parse_page() {
  var transactions = new Array();
  var elements = $('div.apx-transaction-date-container').add('div.apx-transactions-line-item-component-container');
  var last_date = "";
  elements.each(function() {
    if ($(this).hasClass("apx-transaction-date-container")) {
      last_date = $(this).find("span").text();
    } else if ($(this).hasClass("apx-transactions-line-item-component-container")) {
      transactions.push(parse_transaction($(this), last_date));
    }
  });
  return transactions
}

$(document).ready(function() {
  $('body').append('<input type="button" value="Fetch transactions" id="CP">')
  $("#CP").css("position", "fixed").css("bottom", 0).css("right", 0);
  $('#CP').click(function(){
    let transactions = parse_page();
    let file_content = new Blob([JSON.stringify(transactions)], { type: "application/json;charset=utf-8" });
    saveAs(file_content, `${crypto.randomUUID()}.json`);
  });
});

How to use:

1. Install Tampermonkey, Greasemonkey or other browser extension to enable user scripts.
2. Visit https://www.amazon.com/cpe/yourpayments/transactions, which will list all credit card transactions from Amazon.com.
3. Click on the "Fetch transactions" button on the bottom right. You will see a prompt window to download a JSON file, which will contain the credit card transactions that are displayed on the page.

4. Now navigate to the next page and repeat Step 3, to fetch the next set of transactions. Repeat as necessary, to download all transactions you want.
5. Collect the credit card transactions into a neat spreadsheet, by running the following Python script:

import json
import pathlib

import pandas as pd


def main():
    transactions = []
    for e in pathlib.Path(".").glob("*.json"):
        with open(e, "r") as f:
            transactions.extend(json.load(f))

    df = pd.DataFrame(transactions)
    df.to_csv("transactions_list.csv", index=False)


if __name__ == "__main__":
    main()