Daraja handles STK Push initiation. It doesn't handle what happens when the user locks their phone mid-payment, switches apps, or closes yours entirely before the callback arrives. This Flutter package manages the full payment lifecycle: direct Safaricom API calls without a proxy server, WebSocket delivery of payment status via Appwrite Realtime, automatic state recovery when the app returns from background, and killed-app recovery on next launch via SharedPreferences. Accepts any Kenyan number format — 0712345678, +254712345678, or raw 9-digit — with automatic normalization.

KRA's eTIMS API has no official Python SDK. Every developer integrating it rebuilds the same things: OAuth token refresh, VAT arithmetic across five tax bands, idempotency for in-flight network failures — the Schrödinger's Invoice problem where a timeout mid-POST leaves the invoice state unknown. This SDK handles all of that, plus async support with full API parity and a supplier onboarding gateway for informal sector compliance under Finance Act 2023 §16(1)(c). The tax calculator works offline with no credentials.

An npm package. Daraja gives you STK Push initiation. It doesn't handle what happens when the callback never arrives, when Safaricom sends the same callback three times under load, when a client retries and gets double-charged, or when your database says SUCCESS and Safaricom has no record of it. This TypeScript library handles all of that: idempotent initiation, atomic callback deduplication, polling fallback, and a reconciliation pass for payments that fall through every other safety net. v0.2.0 adds a webhook relay server — point your Safaricom CallbackURL at the relay and it guarantees delivery to your app with exponential-backoff retries, even if your server restarts mid-payment window.

Safaricom's Daraja documentation doesn't document its own error codes comprehensively. Developers hit cryptic failures and have nowhere to look. A searchable reference for every error the Daraja API returns — causes, fixes, and context the official docs don't provide. Includes an llms.txt so AI tools can read it correctly. Community-contributed: open a PR to add an error code you've hit.

Full-stack short-stay rental platform built for a Nairobi property host — real bookings, Paystack payments (M-Pesa + card), a yield engine that auto-prices vacancy gaps, AI-powered guest chat with WhatsApp integration, and an OTA sync pipeline for Airbnb, Booking.com, and VRBO. Admin dashboard with revenue tracking and guest CRM. PWA with offline support and push notifications. Built on Next.js + FastAPI, deployed on Vercel and Railway. Live and in use.