Checkout.com

Checkout.com provides a unified payments platform designed for businesses, particularly marketplaces, to manage online payments, payouts, and financial operations. Their services include payment processing, fraud detection, and tools for integrated platforms, all accessible via a single API.

Checkout.com offers a comprehensive payment solution for marketplaces, aligning well with the core concept of a payments platform. They explicitly mention payment processing, developer API integration, fraud detection, and dashboard reporting. Furthermore, their 'Integrated Platforms' solution directly addresses the needs of marketplaces, similar to Stripe Connect. They also offer issuing services and support for various global payment methods and currencies, along with identity verification, which are additional features found in the provided list.