Frequently Asked Questions

Please find the answer to your question in our FAQ section below. If you can’t find it, you can send a request to our support team via the contact page.

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Common Questions

Payenium is a payment gateway for receiving cryptocurrency Bitcoin, Ethereum, Litecoin, Monero, Dogecoin and others. You can start accepting cryptocurrencies as payment on your website or mobile application using the API with it.


By accepting payments in Bitcoin, Ethereum, Dogecoin and other cryptocurrencies on your site, you not only increase the reach of your audience, but also upgrade your service system, making it relevant and relevant to today’s market requirements.

To start accepting cryptocurrency on your website, you just need to follow a few simple steps. Register on our website and use the API. And if you have any difficulties, our technical specialists will be happy to help you.

At the moment, our service provides the ability to accept the most common cryptocurrencies, including:
– Bitcoin
– Ethereum
– Litecoin
– Dash
– DogeCoin
– Zcash
– Bitcoin Cash
– Monero

But our service continues to develop, and soon more cryptocurrencies will become available to you.

Yes. Payenium can be used not only as a payment gateway for your website, but also as a wallet for storing, paying and receiving digital currency.


At the moment, Payenium service does not provide cryptocurrency exchange services for fiat money. However, you can use one of the most popular exchange services in your area to complete this operation.

To track your coins, find the destination / source wallet address in a reliable Block Explorer such as SoChain. If the coins were indeed sold, they will appear in the history of the addresses of these wallets.

When you send / withdraw coins to / from your Payenium account, your incoming / outgoing balance is shown on your wallet for about 3 seconds or less.

If you have a problem, contact our Support Team with a ready block explorer link or your cryptocurrency+transaction ID

In your personal account, go to the “Transaction History” section and find the transaction you need using the search or filters.

No. Coins exist only in their own network. For example, Dogecoin will exist only in the Dogecoin network, Bitcoins will exist only in the Bitcoin network, etc. Email addresses are completely different from the networks of these coins. You can send Dogecoin only to Dogecoin, Bitcoin to Bitcoin, etc.


Network fees for a Dogecoin transaction are paid to miners on the Dogecoin network, for a Bitcoin transaction, network fees are paid to miners on a Bitcoin network, etc. These network fees depend on the size of your transaction in bytes. Since transaction size varies greatly, network fee can also be different.

On average, our users must pay network fees equal to 1 DOGE per Dogecoin transaction, 0.00002 BTC per Bitcoin transaction and 0.001 LTC per Litecoin transaction.

You can implement your own library by using in our API docs. If you have some issues with this, please contact us at • • and tell us what language you need the library for, and we will be happy to assist you.

Awesome! We love to fix bugs. Contact us and you may receive a big reward for this.

Step №1: Registration
page and add information about yourself. Then you need to click on the “Sign up” button.

After that, you’ll need to confirm your e-mail.

We’ll send a letter with a link to your e-mail. After clicking on the link, you’ll be able to access your account profile.

Step №2: API section
Congratulations! Now you have an account. Your next step is to press the “Connect my business” button in the pop-up. It will bring you to the API section.

In the API section you’ll have to verify your site URL first. To do so, you need to enter it in the designated field using the “http” or “https” protocol and click on the “Verify” button.

Step №3: Site URL verification
After having clicked on the button, you’ll be moved to the page with different verification options. You can choose the TXT file or Meta tag verification, following the instruction provided.

Right after you’ve completed all the steps above you’ll have to click on the confirmation button. Then we’ll carry out the verification procedure and if everything is in order, you’ll see a check mark in the URL box.

Step №4: Secret Key
Once the site URL is verified, you can fill in the remaining fields and click on the “Save Changes” button – this action will redirect you to the next page. There you’ll be able to choose the integration plugin you need and get the necessary Secret Key that you’ll need for plugin activation. Even though you are recommended to save it, you still can get a new one if you’ve lost it.

Step №5: Request IP
You can enter your site IP in the “Request IP” field. Payenium API will be available for this address only. This step isn’t necessary, but we still suggest that you take it for your own safety.

Step №6: Who pays fees?
The final step is for you to decide who’s going to pay transaction fees – you or your customer.

Step №7: Plugin
Once all changes are saved, you’re going to need to download the plugin and set it up. If you have no clue how to do it, just go to the “How to use the plugin?” page and follow the instruction. You’ve got this!

If you have any questions or troubles, the Payenium support team will be happy to help you. Just contact us!

When your customer wants to pay for goods with cryptocurrency, we initiate the process that makes it possible. This is what it looks like:

 Successful payment scenario 

It all begins on your website. First your client adds goods to cart and press the “Pay” button.

Then they see an invoice details form that contains information about address and the payment amount.

Then your client makes the payment and waits for 2 Blockchain network confirmations.

When they have 2 confirmations, the payment process is complete and your client can go back to your site.

On this stage the payment process is completed successfully.


Underpayment scenario

It all begins on your website. First your client adds goods to cart and press the “Pay” button.

Then they see an invoice details form that contains information about address and the payment amount.

Client makes the payment but we do not receive the sufficient sum and inform them about it.

When your client sends us the remaining amount, we wait for the Blockchain network confirmation.

When there are 2 confirmations, the payment process is complete and your client can go back to your site.

On this stage the payment process is completed successfully.

Now we will help you with the payment of the order with cryptocurrency. It’s very simple to do, let’s take a look at each step.

Step 1: Enter your email.

Right after redirecting from the site you will see this window. You need to enter your e-mail address and click “Next step”. Pay attention, if you enter the e-mail address incorrectly, it will be difficult to contact you in case of any problems with payment.

Step 2: Payment Details

On this screen you can see the payment amount and the address where it should be sent. If you use a crypto wallet on your mobile phone, you can simply scan the QR code in the app.

Step 3: Sending funds

How to create a wallet

Copy the data from the previous screen and check its correctness. After sending the funds, the transaction will no longer be canceled.

Step 4: Pending Confirmation

As soon as we will see your transaction on the Blockchain network, the status on the screen will change. After that you will need to wait for 3 confirmations. More or less confirmations may be required, depending on the cryptocurrency. Confirmation speed depends on Blockchain network load.

Step 5: Congratulations! Payment completed.

That’s it! You can get back to the site and complete your purchase. An invoice about the operation will be sent to you by e-mail right away!

But what if you get an error message instead? That happens.

Error: Timeout

This could happen in two cases:
1. You did not send funds and the time for payment has expired.
2. You sent an insufficient amount.

If this happens, we will inform you about the insufficient amount by e-mail. You have time before the invoice expires to pay the missing amount. If the invoice expires, you will receive a notification about this by e-mail.

What to do next?

Contact the seller and provide him with the details of your order. You can find them in the e-mail that you entered earlier. He knows what to do!

Error: Overpayment

It also happens that you sent more than needed. The purchase is considered successfully paid, but you can get back the rest of the amount.

To do this, contact the seller and provide him with the details of your order. You can find them in the e-mail that you entered earlier. He knows what to do!

Now you can complete an operation with underpayment. What does it mean? Sometimes it can happen that your customer transfers an insufficient sum while paying for the order. In this case, if the payment time is over, its status switches to “underpaid”.

However, underpayment can be of a quite small amount and the seller can complete the order. You can do it manually – all you need to do is open operation details and click on the “Complete operation”. This option will appear if the payment time is over and the missing amount wasn’t received. 

Just like other invoices, Ethereum and other ERC20 invoices can be paid in installments. When paying such invoices, it’s important to follow one strict rule.

Every payment should be above $1. If one of your payments is of a lesser amount, the funds won’t reach your wallet. To pay the invoice successfully, make sure that the payment amount exceeds the minimum threshold.

As Ethereum and other ERC20 currencies charge a certain fee for transfers, the minimum transfer amount should be above $1.

If you already sent the lesser amount and it didn’t appear in your wallet, just pay this invoice again with an amount exceeding $2 and with this transfer you will get back funds from the previous one.

The use of Payenium API, Plugins, Extensions and etc for accepting payments – 1%. No hidden fees & Charges.

If  you are Local Business (hotel, restaurant, store etc.) Payenium offers to you different fees for your trade volume. Visit •Partnership• page fill out the forum and start accepting cryptocurrency payments for your local business.

Account Management

On the account login page, click on the link “Forgot password?

After you specify your email, a link will be sent to it to reset the access password.

Follow the link from the letter and in the window that will be opened, enter a new password, then click on the “Submit” button.

Log in using your email and new password.

1. Check the SPAM / Suspicious emails folder.
2. Add the address to the contact list in your address book.
3. Perform the password reset procedure again.

All available cryptocurrency accounts are automatically opened immediately after registration.

Payenium immediately generates your first cryptocurrency address.

All transfers sent to these addresses will be automatically credited to your account.

To enable Two-Factor Authorization, go to the SETTINGS section and click on the “Security” tab.

Install the special Google Authenticator application on your smartphone to generate one-time passwords.

Activation via Google Authenticator
Download and install Google Authenticator for iPhone / Android / Windows Phone and enter your Payenium password to start activation. Scan the displayed QR code by Google Authenticator and enter the generated code.

What are one-time OTP passwords?
One time password (OTP) is a password that is valid for only one authentication session. The one-time password can also be limited to a certain period of time. The advantage of a one-time password over a static one is that the password cannot be reused. Thus, an attacker who intercepted data from a successful authentication session cannot use the copied password to gain access to the protected system.

Unfortunately not.

We do not support import / export of private keys as this can lead to problems with double spending.

We’ve got a new security measure – Payment PIN. It is a 4 digit-code that is necessary to set for every Payenium user. You won’t be able to access your account profile until you set you’ve set Payment Pin.

You will need it for approval of your transactions and mass payouts and for changing the site domain.

Payment Pin is set only once and cannot be changed. We recommend you to save your Pin as you won’t be able to recover it in the future.

Withdraw Funds

Network fees for a transaction are paid to miners on a network. These network fees depend on the size of your transaction in bytes. Since transaction size varies greatly, network charges can also be different. You have a few plans “Normal” and “Priority” that will impact on fee cost and how fast your transaction will be added in a block

Do not worry, it does not lost. Checking the status of your transfer is very simple – just visit one of the sites that track cryptocurrency transactions.

Select the site corresponding to the payment currency and indicate the address of the recipient to whom you sent the transfer. You can also specify the transaction number (TXID) that you can find in the “Transaction History” section in the payment details.

Blackcoin block explorer
Bitcoin block explorer
Dogecoin block explorer
Litecoin block explorer

If the amount you have sent is in the transaction list of this address, then receiving funds is only a matter of time. This usually takes from a few minutes to hours. Sometimes processing and confirmation of a transaction by the network may take longer than usual. In rare cases, up to several hours, depending on network congestion.

Because in cryptocurrencies there is no concept of “sender address”. Cryptocurrency addresses are created for receiving payments, and not for sending: there is simply no sender address. You cannot use exactly those coins that you received when making a payment.

Think of it as banknotes that you put on a bank deposit. Let’s say you brought it to a bank and deposited 1,000 usd into your account with ten banknotes of 100 usd each. When you want to withdraw money, the bank will not give you exactly these ten banknotes. Instead, you will receive other banknotes.

You can read more about this on the Bitcoin Wiki.

It is very easy! After logging in, click on a currency your need and after that click on the “Withdraw” button and you can send a direct transfer.

You can send the transfer to another person or site directly, without intermediaries. You just need to select the payment currency, indicate the amount and enter the cryptocurrency address of the recipient. And do not forget – payments sent cannot be returned.


Invoice minimum IN – 0.007 ETH
Minimum IN 0.000000000000000001 ETH
Minimum OUT ~0.00006 LTC

Invoice minimum IN – 0.0000001 BTC
Minimum IN 0.0000001 BTC
Minimum OUT ~0.000008 BTC

Invoice minimum IN – 0.0000001 LTC
Minimum IN 0.0000001 LTC
Minimum OUT 0.00000001 LTC

Invoice minimum IN – 0.0000001 DASH
Minimum IN 0.0000001 DASH
Minimum OUT ~ 0.00001 DASH

Invoice minimum IN – 0.0000001″ TZEC
Minimum IN 0.0000001 TZEC
Minimum OUT ~ 0.000001 ZEC

Invoice minimum IN – 1 DOGE
Minimum IN 1 DOGE
Minimum OUT 1 DOGE

Bitcoin Cash
Invoice minimum IN – 0.0000001 BCH
Minimum IN 0.0000001 BCH
Minimum OUT ~ 0.000008 BCH

Invoice minimum IN – 0.0000001 XMR
Minimum IN 0.0000001 XMR
Minimum OUT ~ 0.0000001 XMR

Since all transactions in cryptocurrency networks are irreversible in nature, you should be careful when sending funds and always make sure the recipient address is correct.

Payenium can detect typos in the specified address, as well as its affiliation with the selected cryptocurrency, and usually does not allow erroneous transfers to non-existent addresses.

However, if the transfer has already been sent, it is impossible to return or withdraw it.

No. More precisely, it cannot be canceled by you.

Transactions in cryptocurrency networks are irreversible in nature. Any payments sent are not subject to cancellation. Only the payee can return it back to you.

Payenium can detect typos in the specified address, as well as its affiliation with the selected cryptocurrency, and usually does not allow erroneous transfers to non-existent addresses.

A smart and secure way to invest in crypto

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