This article provides a complete, practical walkthrough of the Code Schedule Create Scheduled n8n agent. It connects HTTP Request, Webhook across approximately 1 node(s). Expect a Intermediate setup in 15-45 minutes. One‑time purchase: €29.

What This Agent Does

This agent orchestrates a reliable automation between HTTP Request, Webhook, handling triggers, data enrichment, and delivery with guardrails for errors and rate limits.

It streamlines multi‑step processes that would otherwise require manual exports, spreadsheet cleanup, and repeated API requests. By centralizing logic in n8n, it reduces context switching, lowers error rates, and ensures consistent results across teams.

Typical outcomes include faster lead handoffs, automated notifications, accurate data synchronization, and better visibility via execution logs and optional Slack/Email alerts.

How It Works

The workflow uses standard n8n building blocks like Webhook or Schedule triggers, HTTP Request for API calls, and control nodes (IF, Merge, Set) to validate inputs, branch on conditions, and format outputs. Retries and timeouts improve resilience, while credentials keep secrets safe.

Third‑Party Integrations

• HTTP Request
• Webhook

Import and Use in n8n

1. Open n8n and create a new workflow or collection.
2. Choose Import from File or Paste JSON.
3. Paste the JSON below, then click Import.
4. Show n8n JSON

   Title:
   Build a Daily Fact Subscription Service with n8n, Airtable & AI
   
   Meta Description:
   Discover how to create a fully automated daily factoid email service using n8n, Airtable, and AI-powered tools like Groq and OpenAI. Walk through a no-code/low-code stack with forms, automation, and dynamic content generation.
   
   Keywords:
   n8n workflow, Airtable automation, email subscription service, OpenAI image generation, Groq LLM, AI content generation, LangChain, no-code tools, daily email newsletter, automated AI emails, unsubscribe flow, Airtable automation with n8n, build factoid generator, GPT email content, image resizing automation
   
   Third-party APIs Used:
   
   1. Airtable API (appL3dptT6ZTSzY9v)
      - Used for storing and managing subscriber data, topics, schedule preferences, and tracking mail logs.
   
   2. Gmail API (via OAuth2 credentials)
      - Used for sending confirmation emails and the final factoid messages to users.
   
   3. OpenAI API
      - Generates child-friendly illustrations based on AI-generated text content for each topic.
   
   4. Groq API
      - Provides access to Groq’s LLaMA 3-powered language model to generate unique and engaging text factoids.
   
   5. LangChain Agents
      - Executes a prompt-based generation agent for factoids, memory management (Window Buffer), and tool integrations (Wikipedia search).
   
   —
   
   Article:
   
   Automate Your Own Fact Subscription Service with n8n, Airtable, and AI
   
   Have you ever thought about delivering fun, educational, and custom content to users — entirely hands-free? With the powerful combination of n8n (a flexible low-code workflow automation tool), Airtable (a cloud database), and cutting-edge AI tools like OpenAI and Groq, you can build a fully automated email subscription service that sends unique, engaging facts directly to inboxes — every day, week, or "by surprise".
   
   In this guide, we’ll unpack an n8n workflow that makes this service real: from intake forms and scheduling to dynamic AI generation, personalization, and email delivery. Let’s explore how it all works.
   
   🔁 Overview: The “Learn Something Every Day” Service
   
   This workflow is designed to automate a content delivery service where users sign up to receive factoids based on a topic they select. They choose how often they want the content — daily, weekly, or at surprise intervals. From their submission to content generation to final delivery, everything happens in n8n through the connected modules and APIs.
   
   📝 Step 1: Capture User Subscriptions with Forms
   
   At the front end of this service are two n8n forms:
   
   - Subscribe Form: Collects email, topic(s) of interest, and frequency preference. Upon submission, this data is stored in an Airtable base under “Scheduled Emails”.
   - Unsubscribe Form: Allows users to opt out. They must provide their unique ID, not their email, to prevent misuse — a secure and privacy-aware design choice.
   
   ✅ Step 2: Confirm Subscriptions via Email
   
   When a user signs up, they instantly receive a simple Gmail-powered confirmation summarizing their selections. This ensures transparency and engagement from the start.
   
   ⏰ Step 3: Daily Scheduled Automation
   
   Every day at 9am, a Schedule Trigger activates a series of searches in Airtable:
   
   - Daily: Users who opted for daily content.
   - Weekly: Users whose last message was sent more than 7 days ago.
   - Surprise: Users who might receive a random email if they hit a "lottery check" coded as a simple 10% chance.
   
   This allows flexible, varied delivery through a single trigger event.
   
   🤖 Step 4: Dynamic Content Generation with AI
   
   For each selected subscriber, a subworkflow spins off to build personalized content:
   
   1. Query Wikipedia (via LangChain Tool) to fetch topical context.
   2. Use Groq’s LLaMA 3-powered chat model to craft a unique, never-before-used factoid using the user’s chosen topic.
   3. Pair that with OpenAI’s image generation to deliver a cute, AI-illustrated image based on the fact.
   4. Resize the image to be email-optimized using n8n’s built-in Image Editor node.
   
   🔗 Step 5: Construct and Send the Email
   
   In the next leg of the subworkflow:
   
   - The system packages the AI-generated factoid and resized image into an email using Gmail.
   - A secure unsubscribe link is injected into each message.
   - A “Last Sent” timestamp is logged back into Airtable to manage future frequency eligibility.
   
   📅 Step 6: Logging and Maintenance
   
   Every message sent is logged against each user’s record in Airtable for interval tracking and performance auditing. The use of the "Execution Data" node also lets advanced users filter automation logs effectively — especially useful if you're on n8n Cloud.
   
   🧠 Bonus: Smart Subworkflow Execution
   
   To maximize performance and fault tolerance, each message is executed concurrently via subworkflows. This means if one email fails, it won't disrupt others — a smart design choice for scaling automated notifications.
   
   🌟 AI + Automation = Delightful Delivery
   
   This workflow isn't just about newsletters — it’s a blueprint for delivering valuable content without the overhead of manual involvement. What makes it shine:
   
   - Fully No-Code Frontend with n8n Forms
   - Flexible content scheduling with Airtable
   - Personalized emails using LLaMA 3
   - Automated illustrations with DALL·E
   - Clean unsubscribe experience
   - Complete logging and traceability
   
   —
   
   Ready to Try It?
   
   To use this workflow:
   1. Clone the sample Airtable base from this template: https://airtable.com/appL3dptT6ZTSzY9v/shrLukHafy5bwDRfD
   2. Import the n8n workflow into your local instance or n8n Cloud.
   3. Activate the workflow and publish the corresponding forms.
   4. Done! Sit back and watch AI do the rest 🚀
   
   Need help? Join the n8n Community on Discord or browse the Forum. Happy automating!
   
   — End of Article —

5. Set credentials for each API node (keys, OAuth) in Credentials.
6. Run a test via Execute Workflow. Inspect Run Data, then adjust parameters.
7. Enable the workflow to run on schedule, webhook, or triggers as configured.

Tips: keep secrets in credentials, add retries and timeouts on HTTP nodes, implement error notifications, and paginate large API fetches.

Validation: use IF/Code nodes to sanitize inputs and guard against empty payloads.

Why Automate This with AI Agents

AI‑assisted automations offload repetitive, error‑prone tasks to a predictable workflow. Instead of manual copy‑paste and ad‑hoc scripts, your team gets a governed pipeline with versioned state, auditability, and observable runs.

n8n’s node graph makes data flow transparent while AI‑powered enrichment (classification, extraction, summarization) boosts throughput and consistency. Teams reclaim time, reduce operational costs, and standardize best practices without sacrificing flexibility.

Compared to one‑off integrations, an AI agent is easier to extend: swap APIs, add filters, or bolt on notifications without rewriting everything. You get reliability, control, and a faster path from idea to production.

Best Practices

• Credentials: restrict scopes and rotate tokens regularly.
• Resilience: configure retries, timeouts, and backoff for API nodes.
• Data Quality: validate inputs; normalize fields early to reduce downstream branching.
• Performance: batch records and paginate for large datasets.
• Observability: add failure alerts (Email/Slack) and persistent logs for auditing.
• Security: avoid sensitive data in logs; use environment variables and n8n credentials.

FAQs

Can I swap integrations later? Yes. Replace or add nodes and re‑map fields without rebuilding the whole flow.

How do I monitor failures? Use Execution logs and add notifications on the Error Trigger path.

Does it scale? Use queues, batching, and sub‑workflows to split responsibilities and control load.

Is my data safe? Keep secrets in Credentials, restrict token scopes, and review access logs.