Frequently Asked Questions

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Are there any limits on transaction?

Yes. Limits may include: transaction per minute (10), amount per transaction (100 000 per day). Limits and single amount limits may vary depending on the payment provider used.

Can I increase my transaction limits?

Yes. Contact support to discuss your requirements and we can adjust limits based on your use case.

Was this payment gateway developed in-house?

Yes! This product was created as part of the Introduct Academy educational program, where our engineers and students build real-world fintech solutions and learn hands-on skills in payment infrastructure.

Which payment providers do you support?

Currently we support Adyen, Mollie, CryptoProcessing, BTCPay, Payment4, BitPay, Fondy. We are continuously adding more providers based on customer demand.

Can I request support for a specific payment provider?

Yes. We welcome feedback and requests for additional payment providers. Please contact our support team with your request and we will consider it for future development.

Are real funds charged during transactions?

No. All payment systems are currently running in test mode using test accounts. Transactions are processed for testing purposes only and do not involve real funds.

How to understand the code section in the Payment Gateway portal?

The code section in the Payment Gateway portal provides important information about the status of your transactions and API requests. At this moment this section is under construction and will be available soon.

Are there any limits on transaction?

Limits and single amount limits may vary depending on the payment provider used. Below are the currently configured limits per provider:

Adyen

  • 100,000 — daily limit (regardless of currency)

Mollie

  • 100,000 — daily limit (regardless of currency)
  • 10,000 — maximum single invoice amount (Mollie documentation)

Bitpay

  • 100,000 USD — daily limit
  • 5,000,000 USD — yearly limit
  • 1 USD — minimum invoice amount

CryptoProcessing

  • 100,000 USD — monthly limit (pay-in + payout)
  • 10,000 EUR — maximum invoice amount
  • 10 EUR — minimum invoice amount
  • Payout minimum depends on cryptocurrency
0.00001000 BTC = 0.67 USD
0.002 ETH = 3.88 USD

Can I increase my transaction limits?

Yes. Contact support to discuss your requirements and we can adjust limits based on your use case.

What does a successful transaction run mean?

After a transaction is created, the system returns a confirmation payment link. At this stage, the transaction status is set to pending. The end user completes the payment by following the link. The payment provider confirms the transaction. The transaction status is updated to successful.

How long does a transaction take?

Transactions are processed in real-time. The payment confirmation is returned within seconds of the user completing the payment.

Why can a transaction fail?

Transactions may fail due to: Provider-side restrictions (e.g. invalid card details or network issues). Each failed transaction includes a reason to help understand the issue.

Do I need to create a user before making a transaction?

Yes. Each transaction must be associated with a user. Before running a transaction, a user profile must be created in the system.

Is user verification mandatory?

Your KEY_ID and SIGN will be derived automatically from your account. You can create transactions without additional user verification.