Effortless Peppol integration
for your software

Deliver your customers a smooth e-invoicing experience without the compliance headaches or technical burden. Flowin manages Peppol connectivity so your platform can scale effortlessly, all without per‑document charges.

Trusted by +300 software companies

Partner with a fast and reliable e-invoicing API 

Mandatory e-invoicing isn’t just a regulatory  checkbox, it’s your opportunity to future-proof
your solution and deliver effortless invoicing for your customers.

Why do software and ERP rely on our e-invoicing API?  

No need to become a certified Peppol  Access Point 

You focus on your product, we do the heavy lifting. All updates and operation are handled by us so you can keep your developers focused on your product roadmap while we take care of Peppol compliance.

We deliver clean and embedded e-invoicing for your software 

Our developer‑friendly API gives you all the tools to embed Peppol‑ready e‑invoicing in days. One streamlined integration unlocks a scalable, reliable invoicing experience for your entire product.

We provide a clean onboarding for developers

Start building in minutes. Our open documentation and a free test environment lower the barrier to production and help you deliver value faster.

Rely on our secure and compliant API

Flowin protects your data with SSL/TLS encryption, OAuth authorization, and regular security audits. We ensure compliance with all local and European legislations so you can scale at ease.

You are never building alone

Our e‑invoicing experts have been active in the field since 2007. They provide quick and reliable support to keep your integration on track and your team confident at every step.

Our pricing is designed to help you grow your business

Get instant Peppol connectivity without per-document fees.

Ask us anything

Hear it from our customers

  • If you’re looking for an easy way to integrate e-invoicing into your system,
    I recommend Flowin. From initial contact to comprehensive documentation and responsive support, they make integration straightforward and efficient.

    Jean-Pierre Cuypers
    CEO, Cafca Software
  • The Flowin API runs smoothly within our existing software and adds an extra layer of technical security, while still allowing us to stay fully in control. The Peppol connection has become a natural part of our platform. For us, that was exactly the combination we needed.

    Bart Van der Donck
    CEO, myKMO
  • Our client was astonished at how fast everything worked. Once the Peppol integration is active, invoices arrive almost instantly, literally within seconds.

    Pieter Meeussen 
    Director and Senior Developer, Afternoon Software Solutions

How it works? 

Flowin’s API is built for seamless integration, enabling fast and secure e-invoicing via Peppol:

1
Create a free account on our marketplace
2
Test your integration in a secure environment 
3
Go live with seamless and scalable invoice delivery
Ready to get started?

Hundreds of software platforms deliver e-invoicing connectivity through Flowin.
You can offer the same experience with one reliable Peppol integration.

Ask us anything

Add secure, effortless Peppol connectivity to
any software, ERP, or CRM without hidden fees

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