Guides — WhatsApp Profile API
Explainers that pre-empt the most common integration, positioning, and decision questions about the WhatsApp Profile API.
Profile API vs Business API — disambiguation
Two very different products that share a name. Read this if you are unsure which you need.
Direct purchase vs RapidAPI — cost breakdown
When marketplace convenience wins, when direct pricing wins. Migration guide.
From the blog
Best Open-Source WhatsApp Libraries in 2026
A balanced 2026 comparison of the top open-source WhatsApp libraries — Baileys, whatsapp-web.js, WPPConnect, Venom and whatsmeow — with architecture, licensing and ToS-risk guidance.
What Is Baileys? The Complete Guide to the WhatsApp Library
A deep, developer-focused guide to Baileys (@whiskeysockets/baileys): how the browserless WhatsApp library works, install, QR vs pairing code, sending messages, and ban risk.
Baileys vs whatsapp-web.js: Which Should You Choose?
A practical, head-to-head comparison of the two most popular Node.js WhatsApp libraries — WebSocket vs Puppeteer, resource cost, scaling, and when to use neither.
whatsapp-web.js: A Practical Guide to the Puppeteer Library
How whatsapp-web.js drives WhatsApp Web through Puppeteer — auth strategies, events, sending media, common errors, and deployment, with honest ToS guidance.
WPPConnect Explained: Features, Setup, and When to Use It
WPPConnect isn't one package — it's a suite: a Puppeteer-driven Node lib plus a ready-to-run REST server. Here's the architecture, setup code, and when to use it.
whatsmeow and Go WhatsApp Libraries: A Developer Guide
How whatsmeow implements WhatsApp's multidevice protocol in Go — pairing, architecture, runnable sample code, the GOWA REST wrapper, and the honest ToS and ban-risk picture.
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