Awesome Agent Harness

Demo of a customer service use case implemented with the OpenAI Agents SDK

AIOS: AI Agent Operating System

AI Agent Governance Toolkit — Policy enforcement, zero-trust identity, execution sandboxing, and reliability engineering for autonomous AI agents. Covers 10/10 OWASP Agentic Top 10.

🧊 Open source LLM observability platform. One line of code to monitor, evaluate, and experiment. YC W23 🍓

A simple SWE style browser agent framework that achieves SOTA results on long horizon web tasks.

A model-driven approach to building AI agents in just a few lines of code.

Python SDK for AI agent monitoring, LLM cost tracking, benchmarking, and more. Integrates with most LLMs and agent frameworks including CrewAI, Agno, OpenAI Agents SDK, Langchain, Autogen, AG2, and CamelAI

All-in-One Sandbox for AI Agents that combines Browser, Shell, File, MCP and VSCode Server in a single Docker container.

Nexent is a zero-code platform for auto-generating production-grade AI agents using Harness Engineering principles — unified tools, skills, memory, and orchestration with built-in constraints, feedback loops, and control planes.

The CLI and skills that turn any coding assistant into an expert at creating, evaluating, and deploying AI agents on Google Cloud.

SWE-bench: Can Language Models Resolve Real-world Github Issues?

An open-source Collaborative Multi-Agent OS for transparent, human-in-the-loop task coordination via Matrix rooms.

Next-generation AI Agent Optimization Platform: Cozeloop addresses challenges in AI agent development by providing full-lifecycle management capabilities from development, debugging, and evaluation to monitoring.

Orchestration layer for coding agents (Claude Code, Codex)

Repository for skills to assist AI coding agents with .NET and C#

Build and deploy AI Agents on Cloudflare

Framework for evaluating and improving agents

Self-hosted, open-source agent skill registry for enterprises. Publish & version skill packages, govern with RBAC and audit logs, deploy on-premise with Docker or Kubernetes.

ByteRover CLI (brv) - The portable memory layer for autonomous coding agents (formerly Cipher)

An open-source Collaborative Multi-Agent OS for transparent, human-in-the-loop task coordination via Matrix rooms.

Agenta is a workspace where you and your team build agents and automations.

Next Generation Agentic Proxy for AI Agents and MCP servers

Open-source observability for AI agents. Find where your agents fail, dispatch your coding agent to fix it, and verify the fix against real traces.

Our library for RL environments + evals

Skills for agents

TencentDB Agent Memory delivers fully local long-term memory for AI Agents via a 4-tier progressive pipeline, with zero external API dependencies.

A protocol for connecting any editor to any agent

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!

Robust, fast, scalable, and sandboxed open-source online code execution system for humans and AI.

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 management. Optimizes Agent & Tool calling, and supports plugins.

Agent framework for the JVM. Pronounced Em-BAY-bel /ɛmˈbeɪbəl/

AI-Driven Life Cycle (AI-DLC) adaptive workflow steering rules for AI coding agents

Enterprise AI Platform with guardrails, MCP registry, gateway & orchestrator

Plugins from the Cursor community

Cascading runtime for AI agents. Optimize cost, latency, quality, and policy decisions inside the agent loop.

Portable AI agent runtime for the JVM. One @Agent class runs on Spring AI, LangChain4j, Anthropic, or 9 more behind one SPI. Token streaming, tool calls, human approvals, and governance over WebSocket, SSE, gRPC, or WebTransport/HTTP3. Speaks MCP, A2A, and AG-UI.

Open-source security automation platform for teams and AI agents

A lightweight, powerful framework for multi-agent workflows and voice agents

agent-sandbox enables easy management of isolated, stateful, singleton workloads, ideal for use cases like AI agent runtimes and reinforcement learning (RL).

A Comprehensive Benchmark to Evaluate LLMs as Agents (ICLR'24)

Agent Skills as a Memory Layer

LangChain 🔌 MCP

Catalog of official Microsoft MCP (Model Context Protocol) server implementations for AI-powered data access and tool integration

TinyAGI is the agent teams orchestrator for One Person Company. (fka TinyClaw)

Evaluation and Tracking for LLM Experiments and AI Agents

The platform for LLM evaluations and AI agent testing

Devon: An open-source pair programmer

OpenSource Claude Cowork. A desktop AI assistant that helps you with programming, file management, and any task you can describe.

A streamlined and customizable framework for efficient large model (LLM, VLM, AIGC) evaluation and performance benchmarking.

Laminar - open-source observability platform purpose-built for AI agents. YC S24.