Example how you can get QR.NSPK.RU URL with Self-employed PayAnyWay without any API's

moneta.py

import json

import aiohttp


async def pay(amount, redirect, account, currency="RUB", description=""):
    """
    amount - Amount in RUB, can be string
    account - Your PayAnyWay Business account number
    redirect - Redirect to (in any case)
    currency - Currency (default RUB)
    description - Description, can be empty
    
    Returns a dict with:
    url: string, a qr.nspk.ru URL
    transaction: int, Moneta.ru transaction ID
    id: int, Moneta.ru operation ID
    
    It might throw a random exception if you have issues with PayAnyWay or Moneta.ru fixed this :(
    """
    async with aiohttp.ClientSession() as session:
        data = await (
            await session.post(
                "https://moneta.ru/assistant.widget",
                data={
                    "MNT_ID": account,
                    "MNT_CURRENCY_CODE": "RUB",
                    "MNT_AMOUNT": str(round(float(amount), 2)),
                    "MNT_SUCCESS_URL": redirect,
                    "MNT_FAIL_URL": redirect,
                    "MNT_RETURN_URL": redirect,
                    "MNT_INPROGRESS_URL": redirect,
                    "MNT_DESCRIPTION": description,
                    "submit": "Pay order",
                },
            )
        ).text()
        lnk = data.split('const qrPayload = "')[-1].split('";')[0]
        return {"url": str(json.loads(f'"{lnk}"')), "transaction": int(data.split('?MNT_TRANSACTION_ID=')[-1].split('&')[0]), "id": int(data.split(';MNT_OPERATION_ID=')[-1].split('"')[0])}