0fee
The payment API built for Africa
Payment orchestration supporting 150+ providers across Africa. MTN MoMo, Orange Money, Wave, M-Pesa, Stripe, PayPal. Unified API, unified webhooks, AI smart routing. Fixed 0.99% fee.
Building 0fee
The AI Developer Assistant: Claude Haiku Integration
How we designed an AI developer assistant for 0fee.dev using Claude Haiku, custom tools, and streaming responses. By Juste A. Gnimavo and Claude.
The Admin Panel MVP: UUID-Based Routes and Role Hierarchy
How we built the 0fee.dev admin panel with UUID-based routes, JWT auth, and a 4-tier role hierarchy. By Juste A. Gnimavo and Claude.
SQLAdmin Migration: From SolidJS Admin to Integrated Backend
How we migrated the 0fee.dev admin panel from a custom SolidJS frontend to SQLAdmin with 16 models and 12 views. By Juste A. Gnimavo.
OAuth Authentication: Google, GitHub, Microsoft, and Apple
How we implemented OAuth with Google, GitHub, Microsoft, and Apple on 0fee.dev, including Apple's popup flow. By Juste A. Gnimavo.
The Feature Request Module: Developer Feedback Loop
How we built the 0fee.dev feature request system with 4 tables, 20 API routes, upvoting, and priority levels. By Juste A. Gnimavo.
Financial Compliance: OHADA 10-Year Retention Rules
How OHADA's 10-year document retention rules shaped 0fee.dev's deletion policy and archive system. By Juste A. Gnimavo and Claude.
Security Audit: What We Found and How We Fixed It
A transparent look at the security weaknesses we found in 0fee.dev and the systematic fixes we applied. By Juste A. Gnimavo and Claude.
Seven SDKs in Seven Languages
How we built 7 SDKs for 0fee.dev in TypeScript, Python, Go, Ruby, PHP, Java, and C# across two sessions. By Juste A. Gnimavo and Claude.
The API Playground: Interactive API Testing
How we built the 0fee.dev API Playground with 17 endpoints, JSON highlighting, cURL export, and request history. By Juste A. Gnimavo and Claude.
API Documentation: 90+ Endpoints Fully Documented
How we documented 90+ API endpoints across 18 route modules with scroll-spy navigation and multi-language code examples. By Juste A. Gnimavo and Claude.
The GetStarted Onboarding Stepper
How we built a 6-step onboarding stepper for 0fee.dev with auto-verification polling, progress tracking, and sandbox reset. By Juste A. Gnimavo and Claude.
WHMCS, WordPress, and WooCommerce Plugins
How we built 3 platform plugins for 0fee.dev -- WHMCS, WordPress, and WooCommerce -- plus downloadable code samples in 5 languages. By Juste A. Gnimavo.