Best Open Source ai agents Libraries
A curated list of the most popular GitHub repositories tagged with ai agents. Select any project to visualize its architecture and dive into the codebase using Codyn's AI engine.
#1affaan-m/ECC
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
#2NousResearch/hermes-agent
The agent that grows with you
#3langchain-ai/langchain
The agent engineering platform
#4google-gemini/gemini-cli
An open-source AI agent that brings the power of Gemini directly into your terminal.
#5firecrawl/firecrawl
🔥 The Web Data API for AI - Turn entire websites into LLM-ready markdown or structured data
#6nexu-io/open-design
🎨 The open-source Claude Design alternative. 🖥️ Local-first desktop app. 🖼️ Your coding agent becomes the design engine: prototypes, landing pages, dashboards, slides, images & video — real files, HTML/PDF/PPTX/MP4 export. 🤖 Claude Code / Codex / Cursor / Gemini / OpenCode / Qwen & 20+ CLIs via BYOK.
#7affaan-m/everything-claude-code
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
#8browser-use/browser-use
🌐 Make websites accessible for AI agents. Automate tasks online with ease.
#9dair-ai/Prompt-Engineering-Guide
🐙 Guides, papers, lessons, notebooks and resources for prompt engineering, context engineering, RAG, and AI Agents.
#10daytonaio/daytona
Daytona is a Secure and Elastic Infrastructure for Running AI-Generated Code
#11Mintplex-Labs/anything-llm
The all-in-one AI productivity accelerator. On device and privacy first with no annoying setup or configuration.
#12microsoft/ai-agents-for-beginners
12 Lessons to Get Started Building AI Agents
#13mem0ai/mem0
Universal memory layer for AI Agents
#14crewAIInc/crewAI
Framework for orchestrating role-playing, autonomous AI agents. By fostering collaborative intelligence, CrewAI empowers agents to work together seamlessly, tackling complex tasks.
#15ComposioHQ/awesome-claude-skills
A curated list of awesome Claude Skills, resources, and tools for customizing Claude AI workflows
#16code-yeongyu/oh-my-openagent
omo; the best agent harness - previously oh-my-opencode
#17agno-agi/agno
Build, run, manage agentic software at scale.
#18diegosouzapw/OmniRoute
Never stop coding. Free MIT AI gateway: one endpoint, 290+ providers (90+ free), 500+ models — Kimi, Claude, GPT, OpenAI, Gemini, GLM, DeepSeek, MiniMax. Works with Claude Code, Codex, Cursor, OpenCode, Cline & Copilot. Quota-aware auto-fallback, RTK+Caveman compression saves 15-95% tokens, MCP/A2A, Desktop/PWA. Built by 500+ contributors
#19thedotmack/claude-mem
A Claude Code plugin that automatically captures everything Claude does during your coding sessions, compresses it with AI (using Claude's agent-sdk), and injects relevant context back into future sessions.
#20stablyai/orca
Orca is the ADE for working with a fleet of parallel agents. Run any coding agent with your own subscription. Available on desktop, mobile and VPS.
#21ItzCrazyKns/Vane
Vane is an AI-powered answering engine.
#22bytedance/deer-flow
An open-source SuperAgent harness that researches, codes, and creates. With the help of sandboxes, memories, tools, skills and subagents, it handles different levels of tasks that could take minutes to hours.
#23ComposioHQ/composio
Composio powers 1000+ toolkits, tool search, context management, authentication, and a sandboxed workbench to help you build AI agents that turn intent into action.
#24chroma-core/chroma
Open-source search and retrieval database for AI applications.
#25langchain-ai/langgraph
Build resilient language agents as graphs.
#26ashishpatel26/500-AI-Agents-Projects
The 500 AI Agents Projects is a curated collection of AI agent use cases across various industries. It showcases practical applications and provides links to open-source projects for implementation, illustrating how AI agents are transforming sectors such as healthcare, finance, education, retail, and more.
#27sickn33/antigravity-awesome-skills
The Ultimate Collection of 1000+ Agentic Skills for Claude Code/Antigravity/Cursor. Battle-tested, high-performance skills for AI agents including official skills from Anthropic and Vercel.
#28NVIDIA/NemoClaw
Run agents like Hermes, LangChain Deep Agents, and OpenClaw more securely inside NVIDIA OpenShell with managed inference
#29kortix-ai/suna
Kortix – build, manage and train AI Agents.
#30google/adk-python
An open-source, code-first Python toolkit for building, evaluating, and deploying sophisticated AI agents with flexibility and control.
#31NirDiamant/agents-towards-production
This repository delivers end-to-end, code-first tutorials covering every layer of production-grade GenAI agents, guiding you from spark to scale with proven patterns and reusable blueprints for real-world launches.
#32emcie-co/parlant
The conversational control layer for customer-facing AI agents - Parlant is a context-engineering framework optimized for controlling customer interactions.
#33plandex-ai/plandex
Open source AI coding agent. Designed for large projects and real world tasks.
#34volcengine/OpenViking
OpenViking is an open-source context database designed specifically for AI Agents(such as openclaw). OpenViking unifies the management of context (memory, resources, and skills) that Agents need through a file system paradigm, enabling hierarchical context delivery and self-evolving.
#35RightNow-AI/openfang
Open-source Agent Operating System
#36astrid-runtime/astrid
Astrid is a portable, capability-secure operating system for composable software.
#37vxcontrol/pentagi
✨ Fully autonomous AI Agents system capable of performing complex penetration testing tasks
#38cloudflare/moltworker
Run OpenClaw, (formerly Moltbot, formerly Clawdbot) on Cloudflare Workers
#39saturndec/waoowaoo
首家工业级全流程 AI 影视生产平台。Industry-first professional AI Agent platform for controllable film & video production. From shorts to live-action with Hollywood-standard workflows.
#40sigoden/aichat
All-in-one LLM CLI tool featuring Shell Assistant, Chat-REPL, RAG, AI Tools & Agents, with access to OpenAI, Claude, Gemini, Ollama, Groq, and more.
#41ntegrals/openbrowser
Let AI agents browse the web. An autonomous toolkit for browser-based AI agents.
#42rowboatlabs/rowboat
Open-source AI coworker, with memory
#43img2threejs/img2threejs
Rebuild the object in a reference image as a code-only, procedural, quality-gated, animation-ready Three.js model. Token-efficient image-to-3D.
#44omnigent-ai/omnigent
Omnigent is an open-source AI agent framework and meta-harness: orchestrate Claude Code, Codex, Cursor, Pi, and custom agents — swap harnesses without rewriting, enforce policies and sandboxing, and collaborate in real time from any device.
#45opensquilla/opensquilla
OpenSquilla — Token-Efficient AI Agent with same budget, higher intelligence density
#46holaboss-ai/holaOS
Open-source All in One AI agent workspace. Run any agent — Claude Code, Codex — across your tools (100+ integrations + MCP), apps, browser, and files, with shared memory. Built-in models or BYOK.
#47FellouAI/eko
Eko (Eko Keeps Operating) - Build Production-ready Agentic Workflow with Natural Language - eko.fellou.ai
#48InsForge/InsForge
Give agents everything they need to ship fullstack apps. The backend built for agentic development.
#49strukto-ai/mirage
The World's First Unified Virtual Filesystem For AI Agents
#50NVIDIA/skills
Agent Skills for NVIDIA products — install into Claude Code, Codex, and other coding agents to run Physical AI, robotics, simulation, CUDA, and RAG workflows end to end.