How to Build AI Agents in Python - Full Tutorial - Building a Harness
Check out the AI stack I use for my own business (in partnership with HubSpot): https://clickhubspot.com/5dedde In this video, I build a full AI agent harness in Python completely from scratch — no LangChain, no CrewAI, no framework of any kind — just Python, an LLM, and the actual mechanics that make an agent an agent. Want to LEARN how to build useful AI agents that actually get things done? Go here: https://aiagentbuilders.co/yt 🚀 Tools I Use Get 10% off with code techwithtim Openclaw setup: https://www.hostinger.com/techwithtim VPS setup: https://www.hostinger.com/techwithtim10 Wispr Flow (Best AI Dictation): https://ref.wisprflow.ai/TechWithTim-aug26 🎞 Video Resources 🎞 Download the code in this video: https://www.aiagentbuilders.co/yt-resources/python-agent-harness ⏳ Timestamps ⏳ 00:00 | Overview 00:45 | Environment/Project Setup 03:38 | What is an LLM & How it Works 05:50 | V0: Calling LLMs 09:25 | Model Selection & Local Models 13:47 | HubSpot Free Resource 14:44 | V1: Tool Calling 22:56 | V2: Agentic Loop 25:36 | V3: MCP Servers 30:53 | V4: Saving Memory 33:55 | Full Harness Build Hashtags #PythonAI #AIAgents #MCP UAE Media License Number: 3635141