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From October 1, 2026, each WhatsApp business number gets 1,000 free service messages a month. Without a payment method on your WhatsApp Business Account, Meta stops delivering replies at message 1,001. How to check it, fix it, and spot it.

Zavu 2.0 is here: a dashboard that starts from your goal, Channels in one place, and API v2 for the multichannel messaging API. What changes, and what stays.

Build automated appointment reminders with an appointment reminder API: send a WhatsApp template 24 hours ahead, take Confirm or Cancel replies on a webhook.

Build an OTP API flow with Zavu API v2: generate and hash the code yourself, send verification codes on WhatsApp, fall back to email, handle the real errors.

Build an AI chatbot for ecommerce with the Zavu API: it answers from your shipping and returns policies, looks up order status, and hands off to a person.

Build an order confirmation email API flow and WhatsApp shipping notifications from Shopify or WooCommerce webhooks, with email fallback, in Node.

Real estate lead response automation with one webhook: capture leads from WhatsApp, email and Telegram, reply in seconds, and push them to Sheets or Slack.

Nine minutes of video and the written version: create the agent, connect it to Telegram, give it tools, test it safely, and watch it answer in the Inbox.

You install two things, then you describe the agent you want. Your coding agent writes it, deploys it and tests it. Your job is understanding the concepts well enough to ask for the right thing.

An AI agent is a model in a loop with tools and a way in. Here is the definition, the four parts, the types that actually exist, and what most vendors call an agent that is not one.

A chatbot follows branches a human wrote. An agent decides and calls tools. Here is the real difference, the same request handled both ways, and the cases where the chatbot is still correct.