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Build an AI Agent in Python

Build a tiny coding agent that can read files, edit code, run Python, and loop on feedback.

What will you learn?

Write a toy agentic code editor in Python, similar to Claude Code or Cursor's Agent Mode. Understand how agents work from scratch by using free models on OpenRouter (via the OpenAI SDK) to create an LLM-powered code agent. You'll use function calling and feedback loops to build an agent that can find and fix bugs in a real project!

Chapter List

1
LLMs
Learn how LLMs work and send prompts to LLMs on OpenRouter using the OpenAI Python SDK
2
Functions
Write the functions your AI agent will need to modify files and run Python code
3
Function Calling
Give your AI agent the ability to call functions based on its system prompt and context window
4
Agents
Give your tool a proper feedback loop to make it truly "agentic" and fix a real bug

Join 16,981 students in the Build an AI Agent in Python course

Read reviews of their learning experiences

helpful tutorial about agent works

(4/5)
Baranwal  profile image

Baranwal

India

Very difficult to finish with just the information you received during the previous courses. Takes a lot of work to finish, but feels very good when it finally works in the end.

(5/5)
Rico Groenleer profile image

Rico Groenleer

Georgia

Actually a pretty good course, recommend it to beginners >:)))

(3/5)
Bao khanh WILLY profile image

Bao khanh WILLY

Vietnam

Hard to complete with custom clients

(2/5)
Timfygo  profile image

Timfygo

NSW, Australia

got very hard very quick

(1/5)
Harry  profile image

Harry

London

It felt really fun but challenging! A good window into how AI LLMs actually work

(5/5)
Brandon  profile image

Brandon

United States

Whilst there were several pain points with the function section, i think this was a pretty good course for get into the door of Agent design/building

(4/5)
Devil Sonr profile image

Devil Sonr

United States

I've officially built my mini-Claude Code, and I call it Auto-Code.

(5/5)
Mahir Khan profile image

Mahir Khan

Bangladesh

great teaching way in boot.dev especially the bot which is built around educative way not just telling answers directly

(5/5)
Mohammed Shareef profile image

Mohammed Shareef

hebron, palestine

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Mediocrity doesn't cut it anymore

The only way to become a great developer is to write a lot of code

Avoid tutorial hell

by writing a ton of code

Stay motivated with

a game-like curriculum

Build portfolio projects

to prove your skills

Delve deeper

into foundational concepts

Learn flexibly online

without interrupting your life

For 1% the price of college

to minimize your financial risk

Frequently asked Questions

Got questions? We've got answers

Yes! It's free to create an account and start learning. You'll get all the immersive and interactive features for free for a few chapters. After that, if you still haven't paid for a membership, you'll be in read-only (content only) mode.