Awesome Agent Harness

An open-source long-horizon SuperAgent harness that researches, codes, and creates. With the help of sandboxes, memories, tools, skill, subagents and message gateway, it handles different levels of tasks that could take minutes to hours.

🌊 The original agent harness. Deploy intelligent multi-player swarms, coordinate autonomous workflows, and build conversational AI systems. Features adaptive memory, self-learning intelligence, federation, vector RAG integration, and native Claude Code / Codex / Hermes and many more Integrated

Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95% fewer tokens for JSON, same answers. Library, proxy, MCP server.

OmO: Just type "mass ulw" keyword with your prompt. Now you are the master of graph engineering.

A reliable coding agent for complex software engineering tasks.

⌥ Coding agent with the IDE wired in. Built by Stencil Labs.

The batteries-included agent harness.

An open-source AI coding agent that lives in your terminal.

The first open-source harness builder for AI coding. Make AI coding deterministic and repeatable.

Memori is agent-native memory infrastructure. A LLM-agnostic layer that turns agent execution and conversation into structured, persistent state for production systems. Built for enterprise, Memori works with the data infrastructure you already run, no rip-and-replace, and deploys across managed cloud, single-tenant cloud, VPC, and on-premises.

Open-source, secure environment with real-world tools for enterprise-grade agents.

The official TypeScript SDK for Model Context Protocol servers and clients

Open-source agentic workspace enterprises can make their own. Connect the systems you already run — 100+ integrations, MCP, chat tools, apps, browser, local files — with shared memory. Any agent (Claude Code, Codex), any model, or BYOK. Set up in clicks, not months. Local-first: your data never leaves your machines.

AI Agent Engineering Platform built on an Open Source TypeScript AI Agent Framework

Build an agent harness and control it end-to-end. Open-source SDK for production AI agents in Python & TypeScript - any model, any cloud.

🧱 Easy fast local-first microVM runtime and library

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

A local multi-agent harness that works with your existing Claude Code, Codex subscriptions, allows you to run an office of agents

Self-hosted TypeScript agent runtime with durable approvals and verifiable run records. Own it, approve it, audit it.

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

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

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

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

Open-source cross-agent memory layer for coding agents via MCP. Compatible with Claude Code, Codex, Cursor, Windsurf, Gemini CLI, Antigravity, OpenClaw, Hermes Agent, Oh-my-Pi, Pi, Copilot, Kiro, OpenCode, and Trae.

Agent harness and tookit for building AI agents and agentic applications. CLI and SDKs included

Secure runtime to sandbox AI agent tasks. Run untrusted code in isolated WebAssembly environments.