WaAPI Blog
Practical guides, product notes, and thought-provoking discussions on building messaging into modern apps and AI agents.
Answer and Place WhatsApp Calls With the API
Your instances can now pick up an incoming WhatsApp call and play a recording, turn it down with a text reply instead, or place a call themselves. Here is how it works, and what beta means for it.
WhatsApp API Pricing 2026: Per-Message vs. Flat Rate
What sending through the WhatsApp API really costs in 2026: Meta's per-message rates, what flat-rate providers charge, and where self-hosting starts to pay off.
The n8n Node & Our Chatbot Template
Install the WaAPI community node, import our n8n chatbot template, wire up your credentials and webhook, and automate your messaging in minutes.
How to Subscribe to Webhooks with PHP
Build a PHP webhook endpoint for WaAPI: verify the signature, register the URL on your instance, and handle each event type safely.
Keeping Your Session Active
Here are five practical tips directly related to your phone that can help prolong your session's activity.
Sending Line Breaks & Emojis via the API
Send messages that keep their line breaks and emojis: how to structure the JSON payload, and what the API needs in the request.
Bans: How to prevent them and how to get unlocked
Why numbers get blocked for suspected spam, the habits that keep yours safe, and the steps that get a banned number reactivated.
Leveraging Chat Bots with ChatGPT
The future of human-machine interaction has arrived with the evolution of AI-powered language models like OpenAI's GPT-4.