Build Your First AI Agent in Python — No ML Degree Required

Most "build an AI agent" tutorials assume you already understand embeddings, vector stores, and prompt engineering. You don't need any of that to build your first one. An AI agent is a program that uses a language model to decide what to do next. It reads your request, picks the right tool, runs it, reads the result, and decides whether to use another tool or answer you. That loop — reason, act, observe — is the entire concept. This tutorial builds a working AI agent in Python. It searches the web, does math, and answers questions by combining both. You will have it running in 30 minutes. What You Need Before Starting Python 3.10 or higher. Check with python --version . If you're below 3.10, upgrade first — the libraries we use require it. An Anthropic API key. Sign up at console.anthropic.com . The free tier gives you enough credits to follow this tutorial. You need the key to call Claude, which powers the agent's reasoning. A terminal and a text editor. VS Code, PyCharm, or even a pl