Build Everything with AI Agents: Here’s How

ZéFino, o reprodutor.
4 min readMar 5, 2025

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Photo by Alexandra Gorn on Unsplash

Introduction

Ready or not, AI agents are shaping the future — and 2025 looks like the year they’ll dominate everyday workflows. Much like the early days of the internet and cryptocurrency, many will miss out if they don’t act now. The good news? Building AI agents is simpler than you think, especially with n8n — a no-code platform that seamlessly integrates automations, tools, and advanced AI models. Follow along to learn how to set up your own powerful AI agents and take your productivity to new heights.

Note: Keep reading if you’re also interested in a potential full-stack position at VL. Details at the end!

Why AI Agents Are Booming

AI agents can tackle repetitive tasks, manage your schedule, summarize emails, create reminders, and even embed advanced Large Language Models (LLMs) into your workflow. They’re rising fast because they cut costs and save time — instead of hiring more hands, you can spin up an agent that works tirelessly in the background, constantly learning and improving.

Step 1: Getting Started with n8n

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Sign Up for n8n

  • Visit n8n.io and click Get Started for Free.
  • After logging in, create your first workflow on the dashboard.

No-Code Magic

  • n8n is a no-code platform, so you don’t have to be a developer to build powerful AI automations.

Select a Trigger

  • Each workflow begins with a trigger — like a Telegram message, a Google Sheets update, or a scheduled job.
  • For this example, we’ll use Telegram as our trigger to show how easy it is to integrate chat apps.

Step 2: Handling Text and Voice

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Telegram Node Setup

  • Add a Telegram node and choose “On Message.”
  • Link n8n to your Telegram Bot using the BotFather’s access token.

Switch Between Text and Voice

  • Use a Switch node to separate text input from voice messages.
  • This ensures your AI agent can process both standard text queries and voice-based requests.

Transcribe Voice Notes

  • Integrate an OpenAI transcription node to handle audio content automatically.
  • Voice messages become searchable and actionable in the same way as text.

Step 3: Powering Your AI Agent

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Plug in an LLM

  • n8n works with various LLMs like OpenAI or Anthropic Claude.
  • Provide a system prompt for your agent’s behavior, then feed user questions into the LLM for instant replies.

Expand Tools

  • Email (Gmail): Read incoming emails, summarize them, or send automated replies.
  • Calendar (Google Calendar): Fetch events, schedule meetings, and sync everything with your chatbot.

Make It Yours

  • Slack, WhatsApp, Google Sheets — n8n offers thousands of integrations.
  • Customize your AI agent to do exactly what you need, whether that’s analyzing data, sending reminders, or orchestrating multi-channel communications.

Step 4: Test & Activate

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Test Early, Test Often

  • Each time you add or modify a node, do a quick workflow run.
  • Catching issues early saves big headaches down the road.

Activate Your Workflow

  • Once everything works smoothly, activate your agent.
  • From that point, it’s live 24/7, always ready to process triggers.

Iterate and Improve

  • As your needs evolve, keep refining your AI agent.
  • Add new features, connect advanced memory (like vector databases), or experiment with different LLM prompts to handle more complex tasks.

Conclusion: Your Next Move

You’ve just glimpsed how n8n enables powerful AI agents without a single line of code — managing emails, calendars, voice notes, and more. Ready to save time, reduce costs, and dominate your automation game?

Where to Go from Here

To dive deeper, including exclusive tutorials and best practices, grab Mastering n8n: Automate Workflows, Build AI Agents, and Integrate APIs Like a Pro. Here’s why this book is a game-changer:

  • Step-by-step guides for scalable automations
  • Real-world examples to streamline setup
  • Pro tips for AI-driven workflows and quick troubleshooting
  • Advanced strategies for connecting multiple APIs, tools, and AI models

Don’t get left behind in the AI revolution. Click here to secure your copy and start building AI agents that transform your work, business, and life.

(P.S.: If you’re aiming for a role on the VL team — my evolving AI-driven platform — stay tuned for hiring updates!)

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ZéFino, o reprodutor.
ZéFino, o reprodutor.

Written by ZéFino, o reprodutor.

Zé Fino é um carneiro viciado em internet que desbrava o mundo virtual em busca de curiosidades. Ele compartilha tudo no Medium e adora um bom meme

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