Top Free AI Agents You Can Use in 2025 (And How to Build Your Own)

• Blockchain Council
• April 21, 2025

The rise of AI agents has opened the doors to smarter automation, productivity, and even income opportunities — all without coding. But here’s the twist: you don’t need to pay a dime to get started.

In this blog, we’ll explore the best free AI agents available today, what they do, and how you can leverage them for business, development, or personal productivity. Plus, if you want to build your own, we’ll show you how to become an Agentic AI Expert with certifications from Blockchain Council.

What Are AI Agents?

AI agents are autonomous programs powered by AI models like GPT-4, Claude, or Gemini that can take actions, learn from feedback, and make decisions to solve specific tasks.

Unlike basic chatbots, AI agents can:

• Browse the internet
  
• Analyze documents
  
• Make purchases or bookings
  
• Write code or manage files
  
• Connect to APIs and tools
  

And the best part? Many of them are free.

Top Free AI Agents You Can Start Using Now

1. ChatGPT with GPTs (OpenAI)

Cost: Free (basic version)
Use Case: Task automation, research, coding, email drafting
Why It’s Great: You can create your own custom GPTs without writing code. Plug in instructions and get a personal assistant in minutes.

2. AgentGPT

Cost: Free with limitations
Use Case: Autonomous multi-step agents for marketing, research, planning
Why It’s Great: Just give a task and watch the agent think, plan, and act. No login required.

3. AutoGPT (Open Source)

Cost: Free (self-hosted)
Use Case: Complex task execution with memory and tool access
Why It’s Great: If you’re a developer, AutoGPT lets you build truly autonomous agents that connect to the web, files, APIs, and tools.

4. Hugging Face Transformers Agents

Cost: Free
Use Case: Code generation, document analysis, chatbot building
Why It’s Great: Combines open-source models and tools — ideal for developers and AI learners.

5. FlowiseAI

Cost: Free (self-hosted)
Use Case: Drag-and-drop interface to build agents using LangChain
Why It’s Great: Build no-code AI agents with workflows and logic — great for rapid prototyping.

6. OpenAgents by LangChain

Cost: Free (beta)
Use Case: LLM-based agent ecosystems with memory and tool integration
Why It’s Great: Supports multi-agent collaboration. Use for business automation, data wrangling, or even crypto analysis.

Want to Create AI Agents for Business or Development?

If you’ve tried a few free AI agents and want to take the next step to build your own, here’s the roadmap:

Become a Certified AI Agent Expert

• Certified Agentic AI Expert™ for Beginners
  Learn how to use and manage AI agents in business, operations, and workflows.
  
• Certified Agentic AI Developer™
  Dive into LangChain, OpenAI tools, chaining logic, vector databases, and deployment.
  
• Python Certification – Global Tech Council
  Since most open-source AI agents are built in Python, this is a must-have.

Can You Make Money with Free AI Agents?

Absolutely. People are already using them to:

• Build SaaS products
  
• Automate lead generation
  
• Run crypto bots
  
• Offer content writing or marketing as a service
  
• Automate trading or NFT analysis
  

You just need the right knowledge + creativity.

Final Thoughts

Free AI agents are more than just productivity tools — they’re stepping stones to the next generation of AI-powered entrepreneurship. Whether you’re a developer, founder, freelancer, or marketer, there’s an AI agent out there that can save you time or make you money.

And if you want to go from user to creator, start your journey with Blockchain Council’s Agentic AI Certifications.

Quick Links:

• Certified Agentic AI Expert™
• Certified Agentic AI Developer™
• Python Certification – Global Tech Council