Deploy a Google Gemini AI assistant on WhatsApp with email & calendar tools

Open on n8n.io

$20/month : Unlimited workflows

2500 executions/month

Try free

THE #1 IN WEB SCRAPING

Scrape any website without limits

Try free

HOSTINGER

Early Deal
DISCOUNT 20%

Self-hosted n8n

Unlimited workflows - from $4.99/mo

Try free

#1 hub for scraping, AI & automation

6000+ actors - $5 credits/mo

Try free

Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

Deploy a Multi Tool AI Assistant on WhatsApp with Google Gemini Deploy a true AI assistant on WhatsApp. This n8n workflow uses a sophisticated hierarchical agent structure to not only handle conver...

Best for

Support Chatbot automation workflows
AI Chatbot automation workflows
advanced n8n builders looking for reusable templates

Tools used

@n8n/n8n-nodes-langchain.lmchatgooglegemini, @n8n/n8n-nodes-langchain.memorybufferwindow, n8n-nodes-base.whatsapptrigger, n8n-nodes-base.whatsapp, n8n-nodes-base.stickynote, @n8n/n8n-nodes-langchain.agenttool, n8n-nodes-base.gmailtool, n8n-nodes-base.googlecalendartool

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Anshul Chauhan.

Original n8n.io source

1.1 Workflow description

Title: Deploy a Google Gemini AI assistant on WhatsApp with email & calendar tools
Workflow name: Deploy a Google Gemini AI assistant on WhatsApp with email & calendar tools

Deploy a Multi-Tool AI Assistant on WhatsApp with Google Gemini

Deploy a true AI assistant on WhatsApp. This n8n workflow uses a sophisticated hierarchical agent structure to not only handle conversations but also manage your emails and calendar directly from your chat, all powered by Google Gemini.

Key Features

Powered by Google Gemini: Utilizes the advanced capabilities of Google's Gemini models for understanding complex commands and generating natural, human-like responses.
Intelligent Task Delegation (Hierarchical Agents): Features a central Personal Agent that understands the user's intent and intelligently delegates tasks to specialized sub-agents for email, calendar, or general chat.
Full Email & Calendar Management: Connects directly to your Google Workspace to send emails, create drafts, apply labels, create/update/delete calendar events, check your availability, and more.
Context-Aware Conversations: Employs memory at multiple levels, allowing the assistant to remember the context of your requests for a coherent and intuitive user experience.
Seamless WhatsApp Integration: Connects directly with the WhatsApp Business API to send and receive messages, engaging users on one of the world's most popular messaging platforms.
Easy to Deploy & Customize: Get your assistant running with minimal configuration and easily extend its capabilities by adding new tools or modifying the prompts of the existing agents.

How It Works

The workflow uses an advanced agent-based model to process incoming messages:

The Whatsapp Trigger node listens for and receives new messages sent to your WhatsApp Business number.
The message is passed to the main Manager Agent.
The Personal Agent analyzes the message to understand the user's intent (e.g., "send an email," "check my schedule," or just "hello").
Based on the intent, it routes the task to the appropriate sub-agent: the Email Tool, the Calendar Tool, or the general Chatbot Model.
The selected sub-agent executes the task using its own dedicated tools (e.g., the Email Tool uses Gmail nodes to send a message).
The result or response from the sub-agent is passed back to the Send message (WhatsApp) node, which delivers the reply to the user.

Prerequisites

An active n8n instance.
A Meta Business Account and a configured Meta App with the "WhatsApp Business" product added.
A Google Gemini API Key.
A Google Account with pre-configured OAuth2 credentials in n8n for Gmail and Google Calendar.

Step-by-Step Setup Guide

1. Configure WhatsApp Credentials:

In your n8n instance, add new "WhatsApp Business" credentials.
You will need a Permanent Access Token and a Phone Number ID from your Meta App's "WhatsApp > API Setup" dashboard.

2. Set Up the WhatsApp Trigger:

Open the Whatsapp Trigger node. In the "Webhook URL" section, copy the Test URL.
Go to your Meta App's dashboard under "WhatsApp > Configuration".
Click "Edit" in the Webhooks section.
Paste the n8n Test URL into the Callback URL field.
Create and enter a Verify token (a simple password of your choice). Enter this same token in the Whatsapp Trigger node in n8n.
Subscribe to the messages webhook event.
Once verified, copy the Production URL from n8n and paste it into the same Callback URL field in the Meta dashboard.

3. Configure the Google Gemini Nodes:

You must add your Google Gemini API Key to the credentials for all the Google Gemini Chat Model nodes. This includes the one in the Chatbot Model, Email Tool, and Calendar Tool.

4. Configure the Google Tools (Email & Calendar):

Email Tool: Open the group of nodes labeled Email Tool. For every Gmail node (Send Email, Create Draft, Get Labels, etc.), select your pre-configured Google OAuth2 credential.
Calendar Tool: Open the group of nodes labeled Calendar Tool. For every Google Calendar node (Create Event, Get all event, etc.), select your pre-configured Google OAuth2 credential.

5. Activate and Test:

Save and activate the workflow.
Send a message to your configured WhatsApp Business number.

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Google Gemini Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatGoogleGemini - lmChatGoogleGemini
Config choices: Version 1

Block 2 - Simple Memory

Type / Role: @n8n/n8n-nodes-langchain.memoryBufferWindow - memoryBufferWindow
Config choices: Version 1.3

Block 3 - WhatsApp Trigger

Type / Role: n8n-nodes-base.whatsAppTrigger - whatsAppTrigger
Config choices: Version 1

Block 4 - Send message

Type / Role: n8n-nodes-base.whatsApp - whatsApp
Config choices: Version 1

Block 5 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 6 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 7 - Sticky Note2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 8 - Sticky Note3

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 9 - email_agent

Type / Role: @n8n/n8n-nodes-langchain.agentTool - agentTool
Config choices: Version 2.2

Block 10 - Send Email

Type / Role: n8n-nodes-base.gmailTool - gmailTool
Config choices: Version 2.1

Block 11 - Create Draft

Type / Role: n8n-nodes-base.gmailTool - gmailTool
Config choices: Version 2.1

Block 12 - Email Reply

Type / Role: n8n-nodes-base.gmailTool - gmailTool
Config choices: Version 2.1

Block 13 - Get Labels

Type / Role: n8n-nodes-base.gmailTool - gmailTool
Config choices: Version 2.1

Block 14 - Label Emails

Type / Role: n8n-nodes-base.gmailTool - gmailTool
Config choices: Version 2.1

Block 15 - Mark Unread

Type / Role: n8n-nodes-base.gmailTool - gmailTool
Config choices: Version 2.1

Block 16 - Gmail

Type / Role: n8n-nodes-base.gmailTool - gmailTool
Config choices: Version 2.1

Block 17 - Window Buffer Memory2

Type / Role: @n8n/n8n-nodes-langchain.memoryBufferWindow - memoryBufferWindow
Config choices: Version 1.3

Block 18 - Google Gemini Chat Model4

Type / Role: @n8n/n8n-nodes-langchain.lmChatGoogleGemini - lmChatGoogleGemini
Config choices: Version 1

Block 19 - calendar_agent

Type / Role: @n8n/n8n-nodes-langchain.agentTool - agentTool
Config choices: Version 2.2

Block 20 - Get all event

Type / Role: n8n-nodes-base.googleCalendarTool - googleCalendarTool
Config choices: Version 1.3

Block 21 - Delete event

Type / Role: n8n-nodes-base.googleCalendarTool - googleCalendarTool
Config choices: Version 1.3

Block 22 - Get a single event

Type / Role: n8n-nodes-base.googleCalendarTool - googleCalendarTool
Config choices: Version 1.3

Block 23 - Update event

Type / Role: n8n-nodes-base.googleCalendarTool - googleCalendarTool
Config choices: Version 1.3

Block 24 - Availablity operation agent

Type / Role: n8n-nodes-base.googleCalendarTool - googleCalendarTool
Config choices: Version 1.3

Showing the first 24 of 30 workflow blocks. Download the JSON for the full node graph.

3. Summary Table

Workflow	Deploy a Google Gemini AI assistant on WhatsApp with email & calendar tools
Complexity	advanced
Nodes	30
Categories	Support Chatbot, AI Chatbot
Author	Anshul Chauhan
Published	22 Sept 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/8826/8826.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Support Chatbot workflows AI Chatbot workflows

Frequently asked questions

What does Deploy a Google Gemini AI assistant on WhatsApp with email & calendar tools do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Support Chatbot, AI Chatbot use case.

Anshul Chauhan

3 workflows

Nodes

@n8n/n8n-nodes-langchain.lmchatgooglegemini @n8n/n8n-nodes-langchain.memorybufferwindow n8n-nodes-base.whatsapptrigger n8n-nodes-base.whatsapp n8n-nodes-base.stickynote @n8n/n8n-nodes-langchain.agenttool n8n-nodes-base.gmailtool n8n-nodes-base.googlecalendartool

Complexity

advanced

Published 22 Sept 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/8826/8826.json

Share Your Workflow

Have a useful automation to share? Publish it and help the community.

Submit Your Template How to Submit

Related Workflows

Route RAG customer support across WhatsApp and Outlook with Pinecone and OpenRouter

## Quick overview A production-ready 3-workflow system that handles customer support across WhatsApp and Email using RAG-powered AI. Automatically routes queries, detects escalation intent, logs handoffs to Google Sheets, alerts your team via Slack, and lets agents resolve cases with a single slash command. ## How it works 1. A form trigger accepts PDF, DOCX, and TXT documents, chunks them with a token splitter, embeds them using Google Gemini, and stores them in your Pinecone vector store to build the AI knowledge base. 2. Incoming messages from WhatsApp Business Cloud API and Microsoft Outlook are each normalized into a unified contact format — capturing channel, contact ID, name, and message text — before merging into a single pipeline. 3. Every message is checked against a Google Sheets handoff tracker. If the contact is currently assigned to a human agent, the message is forwarded directly to Slack without any AI involvement. 4. For active (non-handoff) contacts, the AI Support Agent queries Pinecone via RAG, pulls context from a sliding conversation memory window, and returns a structured JSON output containing a reply and a handoff_requested flag. 5. If the AI detects escalation intent or has no answer, it sets handoff_requested: true — the contact is logged to Google Sheets, AI goes silent for that contact, and a detailed alert is posted to your Slack support channel. 6. Answers are routed back through the originating channel — WhatsApp replies via Business Cloud API, email replies via Microsoft Outlook — keeping every conversation native to its platform. 7. Support agents run /resolve [contact_id] in Slack to close a handoff. The workflow validates the input, updates the Google Sheets row with agent name and timestamp, re-enables AI for that contact, and confirms resolution in the Slack channel. ## Setup 1. Pinecone + Embeddings: Create a Pinecone index and add your Pinecone credential to the "Insert into Vector Store" and "Knowledge Base" nodes. Set your Google Gemini API credential on both Embeddings nodes (one in Workflow 1, one in Workflow 2). 2. WhatsApp: Connect your WhatsApp Business Cloud API credential to the WhatsApp Trigger node. Replace YOUR_WHATSAPP_PHONE_NUMBER_ID in both Send WhatsApp Message nodes. 3. Email: Add your Microsoft Outlook OAuth2 credential to the Outlook Trigger and the Send Email Answer node. 4. Handoff Sheet: Create a Google Sheet with a tab named Handoffs and these column headers exactly: contact_id | channel | contact_name | status | handoff_since | resolved_by | resolved_at. Set your Google Sheets credential and paste your Sheet ID into all four Google Sheets nodes across Workflows 2 and 3. 5. Slack: Create a Slack bot app, add it to your support channel, and set the credential in all three Slack nodes. Update the channel name if yours differs from #support-handoff. 6. AI Model: Add your OpenRouter (or OpenAI) API key to the Chat Model node. Swap the model slug in node settings as needed. 7. Slash Command: Activate Workflow 3 first to generate its production webhook URL. Then in your Slack app settings go to Slash Commands → Create New → set command to /resolve → paste the webhook URL → reinstall app to workspace. 8. Activate order: Workflow 1 (KB ingestion) → Workflow 3 (resolve handler) → Workflow 2 (main support flow). ## Requirements - n8n (self-hosted or cloud) - WhatsApp Business Cloud API account (Meta Developer App) - Microsoft 365 / Outlook account - Pinecone account - Google Gemini API key - OpenRouter or OpenAI API key or Any other LLM - Google Sheets - Slack workspace with a custom bot app ## Customization - Edit the system prompt in the AI Support Agent node to match your brand voice, support scope, and escalation rules - Swap Google Gemini Embeddings for OpenAI Embeddings — just replace the Embeddings node and ensure your Pinecone index dimensions match - dd more channels (Telegram, Instagram DM, etc.) by normalizing their payloads into the same contact format and feeding them into the Merge node - Adjust conversation memory window (default: 8 messages) in the Conversation Memory node - Trigger the resolve webhook from your CRM or helpdesk instead of Slack if preferred ## Additional info All three workflows must be active simultaneously for the system to function Handoff state is persisted in Google Sheets and survives n8n restarts or server reboots Once a contact enters handoff, the AI is completely silent for that contact — no accidental double-responses Document metadata (filename, uploader name, timestamp) is stored alongside vectors in Pinecone for full traceability Default chunk settings: 500 tokens / 100 overlap — tune in the Token Splitter node based on your document style Contact / Support 🔗 n8n Templates: n8n.io/creators/salmanmehboob 💼 LinkedIn: linkedin.com/in/salman-mehboob-pro 📧 Email: [email protected] 💬 WhatsApp: +92 306 746 6499

View

Answer hotel guest messages with GPT-4o mini, Slack, and Google Sheets

## Quick Overview This workflow receives guest messages via a webhook, uses OpenAI (GPT-4o-mini) to generate multilingual hotel support replies with an escalation flag, notifies the front desk in Slack when needed, logs the interaction to Google Sheets, and returns a JSON acknowledgement to the messaging gateway. ## How it works 1. Receives an inbound guest message through a webhook from a WhatsApp/Viber gateway. 2. Normalizes the incoming payload into a consistent structure (guest ID, channel, guest name, and message text). 3. Uses OpenAI (GPT-4o-mini) to generate a short reply in the guest’s language based on the built-in hotel information and outputs structured JSON with language, reply, category, and an escalate flag. 4. If the message needs human attention, posts the guest details and message to a Slack front-desk channel. 5. Routes the reply based on the reported channel and sends the generated reply text to Slack. 6. Appends the conversation data to Google Sheets and responds to the gateway with a JSON status including the detected language and whether it was escalated. ## Setup 1. Configure the inbound webhook URL in your WhatsApp/Viber gateway so it sends a payload containing at least channel, from, and text/message fields. 2. Add OpenAI API credentials for the GPT-4o-mini model. 3. Add Slack OAuth2 credentials and set the target channels for front-desk notifications and reply delivery. 4. Add Google Sheets OAuth2 credentials and update the spreadsheet/document ID and sheet tab used for logging.

View

Answer support questions from a knowledge base with OpenAI GPT-4o-mini

## Quick Overview This workflow powers a support chat experience that uses an OpenAI RAG agent with in-memory vector search to answer questions from a knowledge base, and includes a manual ingestion flow that fetches an external FAQ document, splits it into chunks, embeds it with OpenAI, and stores it for retrieval. ## How it works 1. Triggers when a new chat message is received. 2. Uses an OpenAI chat model with conversation memory to generate a support reply while following the system support guidelines. 3. Creates OpenAI embeddings for the user’s query and searches an in-memory vector knowledge base for the top matching snippets. 4. Uses the retrieved knowledge base content as a tool to ground the final answer and returns the response to the chat. 5. When run manually, fetches FAQ content from a specified URL via HTTP. 6. Splits the fetched text into chunks, converts it into documents, generates OpenAI embeddings, and inserts the vectors into the in-memory knowledge base for future queries. ## Setup 1. Add OpenAI credentials for both chat completions (GPT-4o-mini) and embeddings. 2. Update the source URL in the HTTP Request step (currently https://example.com/help-center/faq.txt) to point to your real FAQ/knowledge base content. 3. Run the manual ingestion flow once to populate the in-memory knowledge base before testing the chat trigger.

View

Need Custom Automation?

Get help designing a custom n8n workflow that connects your stack and fits your process.

Deploy a Google Gemini AI assistant on WhatsApp with email & calendar tools

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Deploy a Multi-Tool AI Assistant on WhatsApp with Google Gemini

Key Features

How It Works

Prerequisites

Step-by-Step Setup Guide

1. Configure WhatsApp Credentials:

2. Set Up the WhatsApp Trigger:

3. Configure the Google Gemini Nodes:

4. Configure the Google Tools (Email & Calendar):

5. Activate and Test:

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Google Gemini Chat Model

Block 2 - Simple Memory

Block 3 - WhatsApp Trigger

Block 4 - Send message

Block 5 - Sticky Note

Block 6 - Sticky Note1

Block 7 - Sticky Note2

Block 8 - Sticky Note3

Block 9 - email_agent

Block 10 - Send Email

Block 11 - Create Draft

Block 12 - Email Reply

Block 13 - Get Labels

Block 14 - Label Emails

Block 15 - Mark Unread

Block 16 - Gmail

Block 17 - Window Buffer Memory2

Block 18 - Google Gemini Chat Model4

Block 19 - calendar_agent

Block 20 - Get all event

Block 21 - Delete event

Block 22 - Get a single event

Block 23 - Update event

Block 24 - Availablity operation agent

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions