Agent Frameworks

61 open-source agents tracked · Ranked by trust score · Updated 2026-06-04 18:04 UTC

HVTracker independently evaluates 61 open-source agent frameworks using daily signals from GitHub, package registries, and security databases. Each agent is scored on activity, adoption, transparency, safety, and identity. The top-ranked agent frameworks is Haystack with a trust score of 94.3/100 (Grade A). Other leading projects include LangGraph and Vercel AI SDK.

61
Agents
61
Avg Trust
1.3M
Total Stars
7
Grade A
1
Warnings
# Agent Trust Stars Language
1 Haystack A Listed Open-source AI orchestration framework for building context-engineered, production-ready LLM applications. Design modula 94.3 25.5k Python
2 LangGraph A Listed Build resilient agents. 93.3 33.9k Python
3 Vercel AI SDK A Listed The AI Toolkit for TypeScript. From the creators of Next.js, the AI SDK is a free open-source library for building AI-po 92.6 24.7k TypeScript
4 OpenAI Agents SDK A Listed A lightweight, powerful framework for multi-agent workflows 91.7 26.9k Python
5 PydanticAI A Listed AI Agent Framework, the Pydantic way 91.2 17.5k Python
6 Strands Agents A Listed A model-driven approach to building AI agents in just a few lines of code. 88.7 6.0k Python
7 CrewAI A Listed Framework for orchestrating role-playing, autonomous AI agents. By fostering collaborative intelligence, CrewAI empowers 80.9 52.8k Python
8 AutoGen B Listed A programming framework for agentic AI 78.9 58.7k Python
9 AIPass B Listed Persistent Agent Workspace — AI agents that remember, collaborate, and never start from zero. 78.1 185 Python
10 LangChain B Listed The agent engineering platform. 77.7 138.5k Python
11 DSPy B Listed DSPy: The framework for programming—not prompting—language models 76.8 34.8k Python
12 CopilotKit B Listed The Frontend Stack for Agents & Generative UI. React + Angular. Makers of the AG-UI Protocol 74.2 32.0k TypeScript
13 Agno B Listed Build, run, and manage agent platforms. 73.3 40.5k Python
14 Composio B Listed Composio powers 1000+ toolkits, tool search, context management, authentication, and a sandboxed workbench to help you b 71.8 28.6k TypeScript
15 Semantic Kernel B Listed Integrate cutting-edge LLM technology quickly and easily into your apps 71.2 28.1k C#
16 Google Genkit B Listed Open-source framework for building AI-powered apps in JavaScript, Go, and Python, built and used in production by Google 71.1 6.1k TypeScript
17 smolagents B Listed 🤗 smolagents: a barebones library for agents that think in code. 70.6 27.7k Python
18 AgentScope B Listed Build and run agents you can see, understand and trust. 70.3 26.1k Python
19 AutoGPT B Listed AutoGPT is the vision of accessible AI for everyone, to use and to build on. Our mission is to provide the tools, so tha 70.1 184.7k Python
20 Nx B Listed The Monorepo Platform that amplifies both developers and AI agents. Nx optimizes your builds, scales your CI, and fixes 69.3 28.8k TypeScript
21 Google ADK (Python) B Listed An open-source, code-first Python toolkit for building, evaluating, and deploying sophisticated AI agents with flexibili 68.7 20.0k Python
22 Agent Governance Toolkit B Listed AI Agent Governance Toolkit — Policy enforcement, zero-trust identity, execution sandboxing, and reliability engineering 68.7 4.0k Python
23 Griptape B Listed Modular Python framework for AI agents and workflows with chain-of-thought reasoning, tools, and memory. 67.2 2.5k Python
24 Microsoft Agent Framework B Listed A framework for building, orchestrating and deploying AI agents and multi-agent workflows with support for Python and .N 66.1 11.0k Python
25 1Panel B Listed 🔥 1Panel is a modern, open-source VPS control panel — and the only one with native AI agent support. Run Ollama models, 65.7 35.8k Go
26 Instructor B Listed structured outputs for llms 65.6 13.1k Python
27 Burr B Listed Build applications that make decisions (chatbots, agents, simulations, etc...). Monitor, trace, persist, and execute on 65.6 2.0k Python
28 Google ADK (Go) B Listed An open-source, code-first Go toolkit for building, evaluating, and deploying sophisticated AI agents with flexibility a 65.3 8.1k Go
29 Materialize C Listed The live data layer for apps and AI agents. Create up-to-the-second views into your business, just using SQL 64.9 6.3k Rust
30 VoltAgent C Listed AI Agent Engineering Platform built on an Open Source TypeScript AI Agent Framework 64.2 9.4k TypeScript
31 Marvin C Listed an ambient intelligence library 63.3 6.2k Python
32 Agency Swarm C Listed Reliable Multi-Agent Orchestration Framework 61.6 4.4k Python
33 Langroid C Listed Harness LLMs with Multi-Agent Programming 61.1 4.0k Python
34 Spring AI Alibaba C Listed Agentic AI Framework for Java Developers 60.8 9.9k Java
35 Atomic Agents C Listed Building AI agents, atomically 59.6 6.0k Python
36 Bee Agent Framework C Listed Build production-ready AI agents in both Python and Typescript. 59.3 3.3k Python
37 Pyod C Listed A Python library for anomaly detection across tabular, time series, graph, text, and image data. 60+ detectors, benchmar 59.2 9.9k Python
38 AdalFlow C Listed AdalFlow: The library to build & auto-optimize LLM applications. 58.6 4.2k Python
39 Infracost C Listed Cloud cost intelligence for engineers, AI coding agents, and CI/CD 💰📉 Shift FinOps Left! 58.2 12.3k Go
40 TinyTroupe C Listed LLM-powered multiagent persona simulation for imagination enhancement and business insights. 53.9 7.5k Jupyter Notebook
41 Verl Agent C Listed verl-agent is an extension of veRL, designed for training LLM/VLM agents via RL. verl-agent is also the official code fo 53.8 2.0k Python
42 Swarm by OpenAI C Listed Educational framework exploring ergonomic, lightweight multi-agent orchestration. Managed by OpenAI Solution team. 52.7 21.6k Python
43 FastAgency C Listed The fastest way to bring multi-agent workflows to production. 51.6 540 Python
44 Qwen Agent C Listed Agent framework and applications built upon Qwen>=3.0, featuring Function Calling, MCP, Code Interpreter, RAG, Chrome ex 50.2 16.5k Python
45 Mastra D Listed From the team behind Gatsby, Mastra is a framework for building AI-powered applications and agents with a modern TypeScr 48.8 24.8k TypeScript
46 LlamaIndex D Listed LlamaIndex is the leading document agent and OCR platform 47.5 49.9k Python
47 ControlFlow D Listed 🦾 Take control of your AI agents 47.3 1.4k Python
48 AgentLite D Listed 46.8 644 Jupyter Notebook
49 Sotopia agents D Listed Sotopia: an Open-ended Social Learning Environment (ICLR 2024 spotlight) 43.6 308 Python
50 Fedml D Listed FEDML - The unified and scalable ML library for large-scale distributed training, model serving, and federated learning. 41.0 4.0k Python
51 Lingxi D Listed 40.8 245 Python
52 PraisonAI D Listed PraisonAI 🦞 — Hire a 24/7 AI Workforce. Stop writing boilerplate and start shipping autonomous self-improving agents tha 38.3 8.0k Python
53 Webarena D Listed Code repo for "WebArena: A Realistic Web Environment for Building Autonomous Agents" 37.5 1.5k Python
54 JARVIS / HuggingGPT D Listed JARVIS, a system to connect LLMs with ML community. Paper: https://arxiv.org/pdf/2303.17580.pdf 37.4 24.8k Python
55 Eliza D Listed Open source agentic operating system 37.1 18.5k TypeScript
56 OpenSSA D Listed OpenSSA: Small Specialist Agents based on Domain-Aware Neurosymbolic Agent (DANA) architecture for industrial problem-so 37.0 323 Python
57 SwarmZero D Listed SwarmZero's SDK for building AI agents, swarms of agents and much more. 35.7 272 Python
58 Agent Laboratory D Listed Agent Laboratory is an end-to-end autonomous research workflow meant to assist you as the human researcher toward implem 34.0 5.7k Python
59 BabyAGI D Needs review 31.7 22.3k Python
60 AIlice D Listed AIlice is a fully autonomous, general-purpose AI agent. 25.0 1.4k Python
61 OpenManus D Listed No fortress, purely open ground. OpenManus is Coming. 24.3 56.5k Python