The Open-Source Toolkit for Building AI Agents v2
Welcome to a new post in the AI Agents Series - helping AI developers and researchers deploy and make sense of the next step in AI.This one is an updated version of one of my recent popular posts, which outlined the most popular and useful open-source libraries for AI agent builders:The landscape...
Welcome to a new post in the AI Agents Series - helping AI developers and researchers deploy and make sense of the next step in AI.This one is an updated version of one of my recent popular posts, which outlined the most popular and useful open-source libraries for AI agent builders:The landscape of AI agent tools is evolving rapidly. After publishing my previous post, I received suggestions for additional packages I hadn't encountered. Over the past few months, I've tested these tools and documented new, valuable agent-related libraries. This post shares my updated insights.If you often wonder, "What tools are people actually using to build voice agents or understand documents?"—this post is for you. With new packages emerging almost daily, it can be challenging to determine what's state-of-the-art and truly usable. This list is deliberately selective, focusing on the libraries I've personally found most effective, or those recommended by colleagues I trust.In this post, I'll provide a curated and updated overview of the open-source ecosystem for developers building AI agents. While there’s no shortage of AI agent market maps, most are geared toward non-builders who need actionable tools and frameworks to launch functional AI agents today.Every package listed in this post allows commercial use and has a permissive open-source license.Categories covered in this piece:→ Building and Orchestrating Agents (10)→ Computer Use (5)→ Browser Automation (5)→ Voice (12)→ Document Processing (7)→ Memory (3)→ Testing, Evaluation, and Observability (6)→ Vertical Agents (7)Plus: Real-world agent stacks: Voice agent that answers phone calls + Browser agent that crawls LinkedIn URLsCurated guides and tutorials to get started building agentsBecome a premium AI Tidbits subscriber and get over $1k in free credits to build AI agents with Vapi, Claude, and other leading AI tools (Hugging Face, Deepgram, etc.), along with exclusive access to the LLM Builders series and in-depth explorations of crucial topics, such as the future of the internet in an era driven by AI agents. Many readers expense the paid membership from their learning and development education stipend.Upgrade to PremiumBuilding and Orchestrating AgentsTo build agents that go beyond simple prompting, you need infrastructure for planning, memory, and tool use, and a way to hold it all together.As more developers started shipping real-world agents, new frameworks popped up and older ones evolved to meet the actual challenges of agentic AI. This section covers the tools I’ve found most effective for building agents that can think, remember, and act with minimal hand-holding.!function(){"use strict";window.addEventListener("message",(function(e){if(void 0!==e.data["datawrapper-height"]){var t=document.querySelectorAll("iframe");for(var a in e.data["datawrapper-height"])for(var r=0;rSource: AI Tidbits — Published — Category: Business