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AI-powered calendar & meeting digest with Gmail and GPT-4o/Claude - daily brief

Nick LouiNick Loui
523 views
2/3/2026
TimeUtilityHTTP RequestAPIPublic API
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🛠 How It Works

The Daily Calendar Brief is an automated n8n workflow designed to prep you each morning with a rich, executive-style email summary of your day. It pulls data from your calendar, email, and external contact sources to deliver a contextualized, prioritized briefing.

  1. Daily Trigger

Runs every weekday morning at 7:00 AM using a schedule node.

  1. Calendar Parsing

Grabs all Google Calendar events for the day and extracts details like: • Event title, time, and duration • Full attendee list • Meeting description

  1. Attendee Intelligence

Filters for external attendees and: • Scrapes recent email threads with them • Uses Hunter and LinkedIn to enrich attendee info with roles, bios, locations, and recent activity

  1. Brief Assembly

Combines: • Event metadata • Attendee research • Recent conversations

  1. Email Delivery

Renders the Markdown as HTML and sends a polished email to your inbox with: • Meeting timeline & attendees • Key takeaways & extra context • Conflicts & FYIs

Setup Steps

Prerequisites • n8n instance (self-hosted or cloud) • Google Calendar and Gmail OAuth credentials • OpenRouter key (for GPT-4o or Claude 3.7)

Configuration 1. Authorize Credentials • Connect Google Calendar and Gmail nodes with OAuth2 • Set up OpenRouter credentials for AI processing 2. Set Your Email Update the Send Email node with your preferred destination address (default is you@yourcompany.com). 3. Set Your Domain Filter In the “Identify External Attendees” node, adjust the filter value yourcompany.com to your actual domain. 4. Customize Prompts (Optional) You can fine-tune tone, formatting, or limits in the two language model nodes: • Research and Develop Brief (attendee context + email summary) • Summarize Schedule (overall Markdown brief formatting) 5. Activate Workflow

Enable the workflow and test it manually once to validate your setup. Confirm that the email lands correctly.

AI-Powered Calendar & Meeting Digest with Gmail and GPT-4o/Claude - Daily Brief

This n8n workflow automates the creation and delivery of a daily AI-powered digest of your Google Calendar events and relevant Gmail conversations. It's designed to provide you with a concise, intelligent summary of your day's schedule and related communications, helping you stay organized and prepared.

What it does

This workflow runs daily to:

  1. Trigger Daily: Initiates the workflow at a scheduled time each day.
  2. Fetch Calendar Events: Retrieves all upcoming events from your Google Calendar for the current day.
  3. Fetch Relevant Emails: Searches your Gmail for emails related to the calendar events (e.g., meeting invites, follow-ups).
  4. Filter Emails: Filters out any irrelevant emails, ensuring only pertinent communications are processed.
  5. Prepare Data for AI: Combines the calendar event details and filtered email content into a structured format suitable for AI processing.
  6. Generate AI Digest: Uses an AI Agent (powered by a Chat LLM like GPT-4o or Claude via OpenRouter) to analyze the combined data and generate a concise, intelligent digest of your day's meetings and related information.
  7. Format Digest: Converts the AI-generated digest into a readable Markdown format.
  8. Output Digest: Delivers the final digest, ready for use (e.g., sending as an email, posting to a chat application, or storing).

Prerequisites/Requirements

  • n8n Instance: A running instance of n8n.
  • Google Calendar Account: Connected to n8n with appropriate credentials to read calendar events.
  • Gmail Account: Connected to n8n with appropriate credentials to search and read emails.
  • OpenRouter Account: An API key for OpenRouter to access large language models (LLMs) like GPT-4o or Claude.
  • AI Agent Node: The @n8n/n8n-nodes-langchain package installed in your n8n instance to use the AI Agent, Basic LLM Chain, Simple Memory, and OpenRouter Chat Model nodes.

Setup/Usage

  1. Import the Workflow:
    • Copy the provided JSON code.
    • In your n8n instance, go to "Workflows" and click "New".
    • Click the three dots (...) in the top right corner and select "Import from JSON".
    • Paste the JSON and click "Import".
  2. Configure Credentials:
    • Locate the "Google Calendar" node and configure your Google Calendar credentials.
    • Locate the "Gmail" node and configure your Gmail credentials.
    • Locate the "OpenRouter Chat Model" node and configure your OpenRouter API key.
  3. Adjust Schedule (Optional):
    • The "Schedule Trigger" node is configured to run daily. You can adjust the frequency and time as needed.
  4. Customize AI Prompt (Optional):
    • The "AI Agent" and "Basic LLM Chain" nodes contain the logic for generating the digest. You might want to review and customize the prompts or agent instructions to tailor the output to your specific needs.
  5. Activate the Workflow:
    • Once all credentials are set and configurations are reviewed, activate the workflow by toggling the "Active" switch in the top right corner of the workflow editor.

The workflow will now run automatically based on your schedule, providing you with a daily AI-powered meeting and calendar digest.

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