How to Use Agent for WhatsApp (Beginner Guide)

If you want AI help while chatting, this guide shows the fastest way to run Agent for WhatsApp.

You will finish three things:

Install the extension
Connect your AI source
Send your first assisted reply

If you want feature limits first, check the pricing page.

Step 1: Install the Extension

Open the Chrome Web Store listing.
Click Add to Chrome.
Pin the extension for quick access.

After install, keep one WhatsApp Web tab open so the extension can initialize correctly.

Go to web.whatsapp.com
Sign in using your phone QR code
Wait until chats fully load before testing commands

If you test too early, message hooks may fail and look like a product bug.

Step 3: Connect Your AI Source

Inside extension settings, choose your preferred source:

ChatGPT Web login mode
API mode (for users who want more control)

For API mode, verify your key and billing status in your provider dashboard first.

Step 4: Send Your First Assisted Reply

Try these starter commands in a private chat:

@gpt rewrite this politely
@gpt summarize in 1 sentence
@gpt translate to Spanish

In group chats, mention the bot name first, then your instruction.

Common Setup Problems

No response after sending command

Refresh WhatsApp Web
Check extension is enabled
Confirm your AI session is still active

Authentication error

Re-login the selected AI source
Recheck API key format
Confirm account permissions

For a full troubleshooting matrix, use the error code guide.

Best Practices for Daily Use

Keep prompts short and specific
Set a default response style for consistency
Use rewrite/translate prompts for the highest productivity gain

If your team uses this heavily, compare higher tiers in Pricing.

FAQ

Is this available on mobile WhatsApp?

This guide is for WhatsApp Web in desktop browsers.

Do I need coding knowledge?

No. Installation and setup are no-code.

What is the fastest way to test quality?

Use 10 real messages from your recent chats and test rewrite, summarize, and translate outputs.

Where can I practice prompts quickly?

Use the free WhatsApp Reply Generator and copy outputs into chats.