Praneel S
Templates by Praneel S
WhatsApp AI assistant for Google Calendar & Gmail management with Gemini/GPT
⚠️ Disclaimer: This workflow uses WhatsApp, Google Calendar, and Gmail nodes that must be configured manually. Who’s it for This workflow is built for professionals, teams, and automation enthusiasts who want to manage their Google Calendar and Gmail directly from WhatsApp, powered by an AI assistant using OpenAI GPT or Google Gemini. It enables users to chat naturally through WhatsApp to schedule meetings, send emails, and check events — all without opening Gmail or Google Calendar. How it works The WhatsApp Trigger node captures incoming messages from users. The AI Agent (powered by Gemini or GPT) interprets user queries and determines the best tool to use. The Simple Memory node keeps context between messages using the user’s phone number. The Google Calendar nodes handle: Listing, creating, and updating events. Checking your availability before scheduling. The Gmail nodes handle: Sending emails. Reading and summarizing recent messages. The Date & Time node converts natural language like “next Monday at 3 PM” into proper ISO time format. The assistant responds via Send WhatsApp Response, sending clear confirmations and replies. Features Manage Gmail and Calendar entirely via WhatsApp. AI-powered understanding of natural language commands. Integrated with Google Meet for automatic conferencing links. Short-term memory for context retention. Fully modular – swap Gemini with OpenAI GPT or any LLM. Setup Steps Configure WhatsApp Cloud API via Meta for Developers. Set up Google Calendar and Gmail OAuth2 credentials. Add your Google API keys and calendar email. Connect your OpenAI or Gemini model credentials. Activate and test the workflow with messages like: “Schedule a meeting tomorrow at 5 PM.” “Check my latest emails.” “Send an email to alex@example.com about our project.” Requirements n8n instance (self-hosted or cloud) WhatsApp Business API (Meta Developer Account) Google Workspace or Gmail account OpenAI API key or Google Gemini API key Properly configured webhooks for WhatsApp Trigger Example Prompts “What’s on my calendar this week?” “Email John to confirm our meeting.” “When am I free tomorrow afternoon?” Customization Replace Gemini with OpenAI GPT in the AI Agent node. Adjust memory length for longer or shorter conversations. Add Slack or Teams notification nodes. Modify the prompt personality or response tone. Credits Created by Praneel For detailed setup help, visit praneel.tech/contact
By Praneel SManage Google Calendar & Gmail with a Gemini/GPT powered AI assistant
Manage Google Calendar events and Gmail with a customizable AI assistant ⚠️ Disclaimer: This workflow uses Google Calendar and Gmail nodes which you will have to configure yourself Who’s it for This workflow is built for busy professionals, freelancers, and teams who want to automate calendar scheduling and email handling with the help of an AI assistant. Instead of switching between Gmail and Google Calendar, you can delegate tasks like “schedule a meeting,” “send an invite,” or “check my latest emails” directly to the assistant. How it works The AI Agent interprets natural language requests and decides which tool to use. Uses Google Calendar nodes to: Check availability and list events. Create new events with attendees. Update existing events. Uses Gmail nodes to: Send emails with a clear subject and body. Retrieve recent messages or filter by sender/date. The Date & Time node ensures correct time handling for scheduling. Built-in guardrails ensure clarity: if information is missing (e.g., timezone, meeting duration), the AI will ask you instead of guessing. How to set up Import the workflow into your self-hosted n8n. Create credentials for: Google Calendar API (OAuth2) Gmail API (OAuth2) AI model (Google Gemini, OpenAI GPT, or another supported connector) Connect these credentials to the corresponding workflow nodes. Update default values like: Your Google Calendar email ID Timezone preferences Default conference solution (Google Meet is included by default) Test the workflow by asking natural queries such as: “Schedule a meeting with alice@example.com tomorrow at 3 PM.” “Check my emails from this morning.” “What’s on my calendar next week?” Tools 🤖 AI Agent The “brain” of the workflow. Interprets your requests and chooses the right tool. Asks for clarification if details are missing and confirms before important actions. 🧠 Google Gemini Chat Model (or any LLM) The AI language model that powers the assistant. You can swap Gemini with OpenAI, Claude, or another model. 📌 Simple Memory Keeps short-term context of the last ~10 interactions so the agent remembers what “it” refers to in your requests. 📧 Send a message in Gmail Sends emails from your Gmail account. Requires recipient, subject, and body. Generates clear, professional text. 📥 Get many messages in Gmail Checks your inbox. Can filter by timeframe or sender. Returns detailed summaries, not just one-liners. 📅 Get many events in Google Calendar Lists your events for a chosen date range. Useful for “What’s on my schedule this week?” ⏰ Date & Time Converts natural phrases like “tomorrow at 3 PM” into exact ISO date-time values. ✅ Get availability in Google Calendar Checks if you’re free during a specific time slot. Prevents double-booking before scheduling. 📝 Create an event in Google Calendar Schedules a new meeting. Adds title, start/end times, attendees, description, and Google Meet link. ✏️ Update an event in Google Calendar Edits an existing meeting. Change time, attendees, or details without creating a new event. Example Prompt n8n AI Agent System Prompt: Personal Assistant You are an advanced AI Personal Assistant operating within an n8n workflow. Your primary function is to serve as a cognitive engine that translates user requests into specific, executable tool calls. You are precise, methodical, and you do not act without sufficient information. --- Core Operating Principles Tool-Centric Operation: You can only perform actions for which you have been explicitly provided a tool. Before acting, you will review the Tool Manifest to confirm you have the required capability. If a user's request does not map to any available tool, you MUST clearly state that you cannot perform the action and why. For example: "I am sorry, but I cannot set a reminder as I do not have a tool for that function." Clarification Mandate: If a user's request is ambiguous or is missing a required parameter for a tool, you MUST ask clarifying questions before proceeding. Never guess or assume details like timezones, email recipients, or event durations. Single-Focus Execution: Handle one primary task at a time. If a user asks to schedule a meeting and check emails, process the meeting first unless the user specifies otherwise. User Confirmation: Before executing actions that create data or notify others (e.g., creating an event, sending an email), briefly state your plan of action for the user to confirm. Example: "I will schedule an event titled 'Project Sync' for 3 PM tomorrow and invite 'bob@example.com'. Is that correct?" --- Tool Manifest & Usage Protocols You have access to the following tools. Adhere strictly to their parameters and usage triggers. Tool: system_getCurrentTime Description: Retrieves the current date and time. When to Use: When the user asks for the current time, date, or uses relative terms like "today", "tomorrow", "this week". This tool is often a dependency for other tools. Parameters: timezone (string, required): The IANA timezone identifier (e.g., 'America/New_York', 'Asia/Kolkata'). Protocol: If the user asks for the time without providing a timezone, you MUST respond by asking: "Certainly. In which timezone would you like the time?" You will output the time in HH:MM format as requested. Tool: googleCalendar_getEvents Description: Fetches a list of events from the user's Google Calendar within a specified date range. When to Use: When the user asks "What's on my schedule?", "Am I busy?", or asks about events for a specific day, week, or month. Parameters: startDate (string, ISO 8601 format, required): The start of the time period. endDate (string, ISO 8601 format, required): The end of the time period. Protocol: Use system_getCurrentTime to establish the date for relative queries. "This week" means from today's date for the next 7 days. "Today" means from the start of the current day to the end of the current day. Tool: googleCalendar_createEvent Description: Creates a new event on the user's Google Calendar. When to Use: When the user asks to "schedule", "book", "create", or "add" an event, meeting, or appointment. Parameters: summary (string, required): The title of the event. startTime (string, ISO 8601 format, required): The start time of the event. endTime (string, ISO 8601 format, required): The end time of the event. attendees (array of strings, optional): A list of attendee email addresses. Protocol: If the user mentions other people in the scheduling request, automatically include their names/emails in the attendees parameter. You must have all required parameters before calling this tool. Tool: gmail_sendMessage Description: Composes and sends an email via Gmail. When to Use: When the user asks to "email", "send a message", or "contact" someone. Parameters: recipient (string, required): The primary recipient's email address. subject (string, required): The email subject line. body (string, required): The content of the email. Protocol: The subject must be detailed and relevant to the body's content. The body should be professionally written and clearly articulate the user's message without unnecessary embellishment. Tool: gmail_getMessages Description: Retrieves a list of emails from the user's Gmail account. When to Use: When the user asks to "check my email", "see recent emails", or "find an email from someone". Parameters: startDate (string, ISO 8601 format, optional): The start date to filter emails from. endDate (string, ISO 8601 format, optional): The end date to filter emails to. from (string, optional): Filter emails from a specific sender. Protocol: Use system_getCurrentTime to define date ranges for requests like "emails from this morning". --- Defined Workflow: "Schedule a Meeting and Send Invite" When a user's request involves both scheduling a meeting and notifying the attendees, you MUST follow this exact sequence of tool calls: Acknowledge and Gather: Acknowledge the request. Check if you have all the necessary information (topic/summary, attendees, proposed time/date, duration). If not, ask for the missing details. Step 1: Check Availability (googleCalendargetEvents): Use the googleCalendargetEvents tool to check the user's schedule for the proposed startTime and endTime. Step 2: Report & Decide: If Conflict Exists: Report the scheduling conflict to the user, mentioning the existing event. State: "You already have '[Existing Event Title]' scheduled at that time. Would you like to find a different time?" Await further instructions. If No Conflict: Proceed to the next step. Step 3: Create Event (googleCalendar_createEvent): Once the time is confirmed to be free, call this tool with the gathered summary, startTime, endTime, and attendees. Step 4: Notify Attendees (gmail_sendMessage): After the event is successfully created, immediately call this tool to send an invitation email. recipient: The attendees from the event. subject: "Meeting Invitation: [Event Summary]". body: "Hello,\n\nThis is an invitation to schedule '[Event Summary]' on [Date] at [Time]. Please check your calendar for the official Google Calendar invite.\n\nBest regards," Step 5: Final Confirmation: Report to the user that the event has been scheduled and the invitation email has been sent. Requirements n8n instance Google Workspace or Gmail account with API access enabled Google Calendar API credentials Gmail API credentials AI model API key (Gemini, OpenAI, or other supported LLM) How to customize the workflow Swap out the AI model (Gemini, OpenAI, or another LLM). Modify the system prompt in the AI Agent to change its personality or strictness. Extend the workflow to trigger Slack or Teams notifications after scheduling. Adjust the email formatting template for different tones (casual, professional, etc.). Add error-handling logic for more advanced use cases (e.g., auto-rescheduling). Contributions Feel free to contact me for any help. Checkout the github page
By Praneel SAI-powered Gmail and Calendar assistant with Gemini chat interface
⚠️ Disclaimer: This workflow uses Google Calendar and Gmail nodes which you will have to configure yourself Who’s it for Anyone who wants an AI-powered personal assistant that can handle Gmail and Google Calendar tasks through a simple webhook. This is useful for developers, small teams, and productivity enthusiasts who want to connect a chatbot (Discord, Telegram, WhatsApp, or custom frontends) to their email and calendar. How it works / What it does This workflow acts as a chat-based AI assistant. You send text requests through a webhook (e.g., from a chatbot), and the AI agent interprets them to take actions like: 📧 Sending emails in Gmail 📥 Reading and summarizing your emails 📅 Checking your Google Calendar events ✅ Checking your availability before booking 📝 Creating new calendar events with Google Meet links ✏️ Updating existing events ⏰ Converting natural time expressions like “tomorrow at 3 PM” into exact timestamps The AI agent is powered by the Google Gemini Chat Model (or any LLM you choose) and follows strict guardrails: Confirms actions before executing Asks for clarification if details are missing Prevents double-booking by checking availability How to set up Import this workflow into n8n. Set up credentials for: Gmail (OAuth2) Google Calendar (OAuth2) AI provider (Gemini, OpenAI, Claude, etc.) Configure the webhook node (/chat) as your chatbot endpoint. You can connect it to Discord, WhatsApp, Telegram, or a frontend app. Customize the AI Agent’s system prompt if you want to tweak tone or rules. Deploy and start sending messages like: “Check my emails from today” “Schedule a meeting with John tomorrow at 3 PM” “Email my team about the deadline extension” Requirements n8n installed and running (cloud or self-hosted) Gmail and Google Calendar accounts with API access API key for your chosen AI provider Webhook Chatbot interface How to customize Swap Google Gemini with another LLM node (e.g., OpenAI GPT or Anthropic Claude). Add more tools (e.g., Slack, Notion, Trello) to extend capabilities. Adjust memory length in the Simple Memory node. Modify sticky notes with instructions tailored to your use case. Disclaimer This workflow uses the community webhook entry point, so it is best suited for self-hosted n8n instances. Do not hardcode API keys or sensitive credentials. Always use n8n’s Credentials system. Other Details Thanks for viewing this automation! Feel Free to contact me at praneel.tech Also Use my Webhook chatbot interface Which is configured perfectly for n8n Automations!
By Praneel S