Open source agents projects
Every project in the registry tagged agents, ranked by real GitHub adoption.
Visual builder for AI agents and RAG pipelines
The agent engineering platform.
Persistent memory layer for AI agents and apps
Open-source AI penetration testing tool to find and fix your app’s vulnerabilities.
LlamaIndex is the document processing platform for AI
LEAKED SYSTEM PROMPTS FOR CHATGPT, CLAUDE, GEMINI, GROK, PERPLEXITY, CURSOR, LOVABLE, REPLIT, AND MORE! - AI SYSTEMS TRANSPARENCY FOR ALL! 👐
Self-hosted AI runtime for text, voice, vision, and agents
Model-agnostic platform for building intelligent AI agents
Build resilient agents.
Build AI copilots for your product in hours, not months
Effortless deployment and management for any VPS
📑 PageIndex: Document Index for Vectorless, Reasoning-based RAG
Sim is the collaborative workspace to build, deploy, and monitor AI agents and workflows. Used by 100,000+ builders.
Open-source vector database for AI search and retrieval
Open-source AI orchestration framework for building context-engineered, production-ready LLM applications. Design modular pipelines and agent workflows with exp
The SDK to extract data and interact with any site on the web. Get started with Claude Code, Codex, Eve, Mastra, and more.
24/7 screen and audio recorder with AI memory search
Unify data models and metrics across your entire stack
open-source agentic AI data assistant for the next generation of AI + Data products.
Open-source AI coworker, with memory
Run coding agents from your phone, desktop, or terminal
No-code web scraping, crawling, and extraction platform
MCP Toolbox for Databases is an open source MCP server for databases.
Automation engine to build, test and ship any codebase. Runs locally, in CI, or directly in the cloud
Privacy-first knowledge base with any AI model you choose
Fast, secure cloud development environments on your infrastructure
A framework for building, orchestrating and deploying AI agents and multi-agent workflows with support for Python and .NET.
💡 All-in-one AI framework for semantic search, LLM orchestration and language model workflows
Open-source LLM tracing & evaluation for AI optimization
Pocket Flow: 100-line LLM framework. Let Agents build Agents!
AI Agent Engineering Platform built on an Open Source TypeScript AI Agent Framework
Common layer for composing and governing AI agents
Review-first terminal diff viewer for agentic coders
Annotate and review coding agent plans and code diffs visually, share with your team, send feedback to agents with one click.
A local multi-agent harness that works with your existing Claude Code, Codex subscriptions, allows you to run an office of agents
Open-source framework for building agentic apps in JavaScript, Go, Dart, and Python, built and used in production by Google
Next Generation Agentic Proxy for AI Agents and MCP servers
Build reliable AI agents with unified tool integration
The first AI agent that builds permissionless integrations through reverse engineering platforms' internal APIs.
An AI Gateway, registry, and proxy that sits in front of any MCP, A2A, or REST/gRPC APIs, exposing a unified endpoint with centralized discovery, guardrails and
Your agent in your terminal, equipped with local tools: writes code, uses the terminal, browses the web. Make your own persistent autonomous agent on top!
Optimizing inference proxy for LLMs
Harness LLMs with Multi-Agent Programming
A system for agentic LLM-powered data processing and ETL
Open source security automation platform for builders
Enterprise workplace AI with data you own and control
AI-powered platform for engineering LLM products
Open-source AI-powered offensive security harness for automated penetration testing.
KaibanJS is a JavaScript-native framework for building and managing multi-agent systems with a Kanban-inspired approach.
Self-hosted AI agents and workflows across any channel
Open-source testing agent for UI, API, security, accessibility & visual QA
AgentRQ: Human-in-loop realtime conversational task manager for AI Agents. Self-hosted! Control your own agents from wherever you want Mobile, Web, Desktop. Des
Power BI AI skills and Power BI agents for Claude Code and GitHub Copilot: a plugin marketplace of Power BI skills, subagents, and hooks for semantic models, DA
The foundation layer for agentic intelligence.
Lightweight orchestration harness built for your AI agents. The unfiltered truth about where your project stands.
Open-source runtime AI agent security tool - monitors and controls AI agents, catching malicious tool use, prompt injection, and policy drift in real time, befo
Open-source AI browser for intelligent web automation
Transcribe meetings and voice notes with local AI, no bots required
Related tags
Frequently asked questions
How many open source agents projects are there?
This registry tracks 59 projects tagged agents, with 1,265,196 GitHub stars between them. The most-adopted is Langflow at 154,943 stars.
Are these agents projects free to use?
Yes — 51 of the 59 carry an explicit open-source licence across 5 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which agents project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these agents projects still maintained?
56 of the 59 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.