Awesome Agent Harness

Open source MCP Servers for AWS

🤖 AI Gateway | AI Native API Gateway

Specification and documentation for the Model Context Protocol

PraisonAI 🦞 — Hire a 24/7 AI Workforce. Stop writing boilerplate and start shipping autonomous self-improving agents that research, plan, code, and execute tasks. Deployed in 5 lines of code with built-in memory, RAG, and support for 100+ LLMs.

Build effective agents using Model Context Protocol and simple workflow patterns

Coding Agent Harness

Manage multiple AI terminal agents like Claude Code, Codex, OpenCode, and Amp.

OpenShell is the safe, private runtime for autonomous AI agents.

Flexible and powerful framework for managing multiple AI agents and handling complex conversations

Agentic orchestrator for parallel coding agents — plans tasks, spawns agents, and autonomously handles CI fixes, merge conflicts, and code reviews.

The sandbox agent framework.

Open-source observability for your GenAI or LLM application, based on OpenTelemetry

This is a simple demonstration of more advanced, agentic patterns built on top of the Realtime API.

🧱 easy, fast and local-first microVM runtime

Plano is an AI-native proxy and data plane for agentic apps — with built-in orchestration, safety, observability, and smart LLM routing so you stay focused on your agents core logic.

Orchestrate sandboxed coding agents in TypeScript with sandcastle.run()

TypeScript AI agent orchestration framework with dynamic workflows. Describe the goal, not the graph: a coordinator plans the task DAG at runtime and runs it on any LLM (Claude, ChatGPT, Gemini, DeepSeek, or local models).

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

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.

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

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

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.

Orchestration layer for coding agents (Claude Code, Codex)

Your super agent for work: local-first, learn your working context in mins and never forget it.

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

Build and deploy AI Agents on Cloudflare

Persistent memory system for AI coding agents. Agent-agnostic Go binary with SQLite + FTS5, MCP server, HTTP API, CLI, and TUI.

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

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

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.

Latitude is the open-source ai monitoring platform.

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!

The open-source LLMOps platform: prompt playground, prompt management, LLM evaluation, and LLM observability all in one place.

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.

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.

Plugins from the Cursor community

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

Next Generation Agentic Proxy for AI Agents and MCP servers

Real-time transport layer for Java AI agents. Build once with @Agent — deliver over WebSocket, SSE, gRPC, and WebTransport/HTTP3. Talk MCP, A2A and AG-UI.

A protocol for connecting any editor to any agent

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

Agent Skills as a Memory Layer

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

Skills for coding agents

Devon: An open-source pair programmer

Evaluation and Tracking for LLM Experiments and AI Agents

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

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

The platform for LLM evaluations and AI agent testing

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