Mollie
The Challenge
Mollie aims to become Europe’s most beloved Payment service provider by making online payments simple for merchants: no complexity, just powerful APIs. For PHP environments, that promise had already been fulfilled. For Python, however, a full-featured, reliable, and officially supported client was missing. Python engineers had to build and maintain their own integrations. This led to fragmentation and unnecessary vulnerabilities.
The Solution
Mollie has entrusted Four Digits with the official Mollie Python API Client. We design, develop, implement, and maintain the client. From feature upgrades and API version updates to security reviews and GitHub issue management: we ensure the client always aligns with the Mollie API specifications. Python engineers can integrate Mollie in minutes, with the assurance that the client is secure, up-to-date, and officially supported.
Mollie trusts us. That says it all.
Being an official technical partner of one of Europe’s fastest-growing PSPs is no coincidence. It’s the result of proven expertise in Python, API development, and a secure development lifecycle that the financial sector requires.
Seamless payments in any Python environment
More than 200,000 European businesses rely on Mollie for their online payments. From startups to international merchants: iDEAL, Mastercard, Visa, American Express, Apple Pay, PayPal, Klarna, Bancontact, SEPA, and more. These payment methods must be available on every platform, even if that platform runs on Python. The Mollie Python API Client makes that possible. Integration takes just minutes. The client is open source, available on GitHub, and fully documented. We address issues, process feature requests, and ensure the security and reliability of every release. Merchants building with Python can count on a client that works: now and with every new API version.
A secure development lifecycle as standard
In the financial sector, security is not an option. Every change to the Python client goes through a rigorous development process: code reviews, automated tests, security checks, and documented releases. We closely follow the Mollie API and translate each new version into a stable, secure, and well-documented update to the client. Mollie API 3.0, the most recent major version, is fully supported. The developer guide and documentation have been kept up to date. New payment methods and features are added as soon as they become available. Merchants and engineers don’t have to worry about backlogs or security vulnerabilities.
Official technical partner of Mollie
We are not a third party building a wrapper, but the officially appointed partner responsible for the Mollie Python API Client. Mollie entrusts us with the quality, security, and continuity of their Python ecosystem.
Python expertise that understands the financial sector
Secure development lifecycle, API version management, open-source governance, and financial compliance: we combine in-depth Python knowledge with an understanding of the payment industry’s requirements. That’s why Mollie chose us.
Always up to date. Always secure
Issues via GitHub are addressed, new API versions are implemented, and documentation is kept up to date. The client isn’t a completed project—it’s a living part of the Mollie ecosystem. We make sure it stays that way.
Payments on your Python platform simply have to work. We make sure they do.
