Mollie Payments Addon

Mollie Payments Addon

Developed By Heroserv

Compatible with WHMCS v8.8


Many Paymentmethods

This Addon supports nearly every Paymentmethod, Mollie supports. Some Paymentmethods, which are only for recurring payments (like SPEA Direct Debit) aren’t supported yet, but in future, they will be.


This Modules creates for each of your customers a customer at Mollie. This customer will alway be connected to the payment. This helps you to have an overview of the payments for special Customers directly in Mollie’s Dashboard

Switching Test- and Livemode

The Addon supports switching between Live-Mode and test-Mode of Mollie’s API by checking one field. You don’t have to change the API-Key everytime

One API-Key for all Methods

For most modules you have to enter the API key for each payment method individually. If you use our Module, you just have to enter it one time in the Addon-Configuration.

How to Install

The installation isn’t very hard, just follow these steps:

  1. Register at Mollie
  2. Get this Addon
  3. Unzip the Addon and upload it to your Installation
  4. Go to your AddonModule-Config
  5. Activate the Addon
  6. Enter your Licensekey from your purchase and your API-Keys from Mollie and Save
  7. Go to your Gatewayconfiguration in WHMCS and click on "Visit Apps & Integrations“
  8. Search for the Mollie-Gateways you want to use and activate them

Support & Help






5 stars
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1 star

Adrian Stöcken @adrian3047

October 5, 2023 at 10:19:32 AM

Very nice module!

Robin Wolff @robin4075

November 7, 2023 at 08:37:03 PM

Thanks for your review!

  • 7 months ago
  • Version Number 1.0.0

Version Compatibility

Compatible with WHMCS v8.8

Full Version Compatibility

  • Selected versions of WHMCS v8.8
  • All versions of WHMCS v8.7

System Requirements

  • Verified Mollie-Payments account
  • PHP 8.1

* Requirements listed are in addition to the WHMCS default system requirements.

Support for this product

The best place to start if you need help with a specific product is to contact the developer. All WHMCS Marketplace developers have both a website and support URL listed.

Developed By Heroserv


v1.5.0 Released March 3rd, 2024

Latest Version



Previous Versions

v1.4.0 Released February 9th, 2024

View/hide detailed changelog

Added Payment-Methods:

  • Klarna: Pay Now!
  • Klarna: Invoice
  • Klarna: Slice It!
  • in3
  • Twint
  • Point-of-Sale-Terminals


v1.3.0 Released January 20th, 2024

View/hide detailed changelog

  • Added Admin-Area with Customer-Manger, Payment-Overview & Settingspage
  • Possibility to disable SEPA for not-verified customers


v1.2.1 Released January 10th, 2024

View/hide detailed changelog

  • Enabled Pay-Button
  • Changed German String in Dutch File
  • Finally fixed reloading SEPA-payments


v1.2.0 Released January 9th, 2024

View/hide detailed changelog

  • Multilanguage (German, Dutch, Englisch)
  • SEPA-Invoice with more Information
  • SEPA-Invoice without reloads


v1.1.0 Released November 8th, 2023

View/hide detailed changelog

Added Support for PHP 8.1


v1.0.0 Released September 24th, 2023

View/hide detailed changelog

  • Added Paymentmethods: ApplePay, BanContact, Banktransfer, Belfius, MollieCheckout (All Paymentmethods), Creditcard, EPS, GiftCard, GiroPay, iDeal, KBC, Paypal, Paysafe, Przelewy24, SOFORT


See also

WHMCS Bitcoin Payments

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Accept Bitcoin and 70+ Cryptocurrency payments - CoinGate for WHMCS

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Coinbase Commerce

No Fees, Easy Setup. Accept cryptocurrencies like: Bitcoin, Bitcoin Cash, Ethereum and Litecoin!

Gateway Fees for WHMCS

With this WHMCS module, you'll get the payment gateway fees from your clients directly.

PayTR Virtual Pos iFrame API

Open your web site to shopping with the advantages of PayTR. Take your payments securely.