Blog
All articles. All pillars. All authors.
The CLI Tool: zerofee-cli
How we built zerofee-cli with Python, Typer, Rich, and httpx -- login, payments, webhook forwarding, log streaming. By Juste A. Gnimavo and Claude.
The Test Provider and Sandbox System
How 0fee.dev built a test provider with magic amounts, test cards, and a sandbox system for developers to test payments safely.
Why We Built a Payment Orchestrator From Scratch
Why we built 0fee.dev, a payment orchestrator covering 53+ providers across 200+ countries. By Juste A. Gnimavo and Claude, from Abidjan.
Building a Payment Platform From Abidjan, Ivory Coast
How we built 0fee.dev from Abidjan with one CEO and one AI CTO in 86 sessions over 80 days. Zero human engineers. By Juste A. Gnimavo.
The Developer Console: Tabs, Status Checker, and Widget Preview
How we built the 0fee.dev Developer Console with interactive status checker, widget preview, and downloadable templates. By Juste A. Gnimavo and Claude.
A Stripe-Inspired Marketing Website in SolidJS
How we built 0fee.dev's Stripe-inspired marketing website with interactive code examples, pricing calculator, and country map.
SQLite to PostgreSQL: 39 ORM Models and 1,204 Rows
How we migrated 0fee.dev from SQLite to PostgreSQL with 39 ORM models and 1,204 rows of data. By Juste A. Gnimavo and Claude.
The Checkout Widget Redirect Problem: Popups, Polling, and postMessage
How we solved the redirect problem in 0fee.dev's checkout widget using popups, polling, and postMessage. By Juste A. Gnimavo and Claude.
86 Sessions in 80 Days: The Complete Build Timeline
The complete build timeline of 0fee.dev: 86 sessions across 80 days, from first commit to production deployment. By Juste A. Gnimavo.
The Middleware Stack: Auth, Rate Limiting, and Idempotency
How 0fee.dev handles API key auth, Redis-based rate limiting, and idempotency keys to prevent duplicate payments. By Juste A. Gnimavo and Claude.
The December 12 Marathon: 13 Sessions in One Day
13 development sessions in a single day: the December 12 marathon that transformed 0fee.dev from prototype to platform. By Juste A. Gnimavo.
Fixing Infinite Loops and 500 Errors
The infinite loops and 500 errors that struck 0fee.dev across multiple sessions, and how we traced and fixed each one. By Juste A. Gnimavo.