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
Dark Mode Across 19 Dashboard Pages
How we systematically implemented dark mode across 19 dashboard pages in 0fee.dev with consistent patterns and intentional exclusions.
Internationalization: 15 Backend Languages, 5 Frontend
How 0fee.dev implements 15 backend languages and 5 frontend languages with SolidJS Context API, RTL Arabic, and 1,350+ keys.
UI Polish: From Functional to Premium
How 0fee.dev evolved from functional to premium with SVG icons, custom Select components, card styling, and syntax highlighting.
The 0.99% Fee Model: Zero Monthly Fees
How 0fee.dev pricing works: 0.99% per transaction, zero subscriptions, monthly invoicing, multi-currency conversion. By Juste A. Gnimavo and Claude.
The Billing Suspension System
How 0fee.dev handles unpaid invoices: cron-based billing, grace periods, 402 responses, auto-reactivation. By Juste A. Gnimavo and Claude.
Currency Conversion Across 25+ Currencies
How 0fee.dev handles currency conversion across 25+ currencies with free APIs, caching, and locale detection. By Juste A. Gnimavo and Claude.
Invoice System and PDF Generation With WeasyPrint
How 0fee.dev generates professional invoices with WeasyPrint, merchant branding, search/filter, and email delivery. By Juste A. Gnimavo and Claude.
Wallet and Add Funds Flow
How 0fee.dev's wallet system works: credits, add-funds flow, country-based filtering, coupons, and balance management. By Juste A. Gnimavo and Claude.
Building a SolidJS Dashboard From Scratch
How we built 0fee.dev's SolidJS dashboard with stores, component architecture, real API integration, and 3-layout routing system.
Merging the Marketing Website Into the Frontend
How we merged 0fee.dev's separate marketing website into the frontend app, going from 3 services to 2 with 3-layout routing.
The Checkout Widget: 21KB IIFE That Handles Everything
How we built 0fee.dev's 21KB checkout widget as a Vite IIFE library build with country selection, OTP support, and phone input.
Hosted Checkout Pages: The Redirect Flow
How 0fee.dev built server-rendered hosted checkout pages with Jinja2, multi-language support, dark mode, and sandbox mode.