What are the website requirements for payment gateway integration?

Yet whether or not you need payment gateway integration depends on the process of dealing with the end users/providers of your service/products.

For example, if you need only to collect money from your customers, you could just integrate with a Merchant Account, sometimes with the API documents, sometimes even without any technical issues, especially if the Merchant Accounts provider could provide payment pages or payment button. such as Global Payment Service Provider - Acardpay

If you need to payout to someone or enterprises directly by channels that could be dealt with online operation most of the time , you’d better integrate with payment service provider that could do remittance work. What you need to know is that even e-wallets like PayPal cannot do remittance in many regions because of local policy restrictions.

The requirements for integration with a payment service provider usually include a scanned copy of your ID, Business Registration (or TAX ID) certificate, a valid billing address and your banking information for a payout.