Guides

How to set up the WhatsApp Cloud API (2026 step-by-step guide)

Create a Meta app, get a WhatsApp Business Account, send your first message from the free test number, then make it permanent with a system-user token — every step, with the parts Meta's docs skip.

How to send WhatsApp messages from Claude or ChatGPT

Connect Claude or ChatGPT to the WhatsApp Business API with a custom connector, then draft templates, message customers and run broadcasts by just asking.

The WhatsApp 24-hour customer service window, explained

When you can send free-form WhatsApp messages, when you need an approved template, what each costs, and why a "sent" message sometimes never arrives.

WhatsApp Business API pricing in 2026 — what you actually pay

How Meta charges per message (marketing, utility, authentication), what's free, and how platform fees from providers like Twilio, Wati and SendFromChat add on top.

How to send bulk WhatsApp messages without getting banned

The practical rules for WhatsApp broadcasts with the official Business API — opt-in, warm-up, pacing, opt-outs and content — so your number keeps a good quality rating.

WhatsApp MCP server for Cursor, VS Code, Gemini CLI and Codex

Add a hosted WhatsApp Business API MCP server to Cursor, VS Code (Copilot), Windsurf, Gemini CLI or Codex in one config line, and send WhatsApp messages from your editor or terminal.

WhatsApp messaging limits and tiers — how many people can you message a day?

How Meta's WhatsApp Business messaging limits work (250, 2,000, 10,000, 100,000, unlimited), what moves you up a tier, and how quality rating can move you down.

Why WhatsApp templates get rejected — the approval rules, explained

The formatting rules and content policies Meta checks before approving a WhatsApp message template, with examples of what fails and how to fix it.