Offer a frictionless & intuitive payment experience

Optimize your customer experience through a user-friendly payment interface, which allows you to increase customer acquisition.


Onboard your clients & collect your payments on a single interface

  • Digitize your onboarding process with the electronic signature available for SEPA mandates and documents.
  • Accept payments for your recurring revenue with Direct Debit and Open Banking payments.

User experience

Offer the best payment journey

  • Combined payment methods to best adapt to your business.
  • Responsive design to adapt to all devices.
  • Multi-channel: web, mobile, call center, etc.
  • Multi-language: French, English, German, Spanish, Italian and others.


Secure your revenues

  • IBAN filtering
  • Strong authentication
  • Electronic SEPA mandate signature


Easy to integrate.
Simple to use.

SlimPay’s Checkout can be natively integrated on any website or mobile application within few lines of code thanks to our API.

We power the growth of our clients across all industries


To simplify the user experience of their clients, Randstad turned to SlimPay for our fully digitalised payment solution, which enables you to electronically sign a SEPA mandate. Payments have been secured, payment deadlines have been reduced and the entire process of paying bills has been streamlined.

OVO Energy

SlimPay partners with OVO Energy on all of their transactions in France, with an offer that includes a 100% digital subscription and payment model. Thanks to SlimPay’s electronic signature module, OVO Energy can offer their customers a smoother experience: New customers can sign the terms & conditions, contract and Direct Debit mandate electronically.


In France, at the subscription level, all SEPA mandates are electronically signed through SlimPay — whether for individuals or professionals. EDF offers a 100% digitalised subscription journey


“Since the integration of SlimPay’s solution, we have experienced an increase in fulfillment rate. he number of monthly donors has also doubled in the past 2 years as we had introduced electronic mandates to our process.”
Maša Dakič, Head of Monthly Giving at UNICEF Slovenia

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The SlimPay Checkout is a dedicated interface that allows clients to enter their bank details and to sign a direct debit mandate or a document. It can be integrated on the merchant site in three ways: Pop-in, Redirection and iFrame.


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SlimPay’s electronic signature module offers a 100% virtual method for signing direct debit mandates and documents such as contracts.


Find out more