Question: How can I build a custom payment flow for my marketplace while ensuring PCI compliance?

If you need to create a custom payment flow for your marketplace while maintaining PCI compliance, Basis Theory is a good option. Basis Theory is a programmable vault platform that handles commerce flows, compliance and payments data in a secure environment. It comes with features like customizable payment strategies, a secure data vault, 3D secure support, and PCI Level 1, HIPAA, SOC 2 Type II and ISO 27001 compliance. The platform is designed to reduce customer friction and scale regulated products efficiently.

Another good option is Inai, a full-stack payment platform that streamlines payment operations with a single API. It integrates with multiple payment service providers, optimizes transactions and automates payment workflows. Inai boasts enterprise-grade security, with the ability to handle 300 transactions per second and 99.99% uptime, and can integrate with more than 50 payment vendors and 300 local payment methods in 180+ countries. It's a good fit for e-commerce, subscription and platform businesses looking to reduce payment failure rates and increase revenue.

If you need flexible payment terms and order-to-cash automation, Slope is also worth evaluating. Slope is a comprehensive solution that includes credit card and ACH payments, guest checkout and embedded financing options. It automates AR processes, removing manual tasks in customer order processing and remittance applications. Slope has enterprise-grade security, SOC Type 1 and Type 2 compliance and customizable credit risk management, making it a good fit for B2B marketplaces and wholesalers.