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An Open-Source Asynchronous Coding Agent

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

"Context engineering is the delicate art and science of filling the context window with just the right information for the next step." — Andrej Karpathy. A frontier, first-principles handbook inspired by Karpathy and 3Blue1Brown for moving beyond prompt engineering to the wider discipline of context design, orchestration, and optimization.

Cybersecurity AI (CAI), the framework for AI Security

The best agent harness.

Build effective agents using Model Context Protocol and simple workflow patterns

Specification and documentation for the Model Context Protocol

Project management skill system for Agents that uses GitHub Issues and Git worktrees for parallel agent execution.

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.

⌥ AI Coding agent for the terminal — hash-anchored edits, optimized tool harness, LSP, Python, browser, subagents, and more

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

✨ Build AI agents and web apps — with a single binary.

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

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.

Coding agents from your phone, desktop and CLI

Coding Agent Harness

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.

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

From a goal to a task DAG, automatically. TypeScript-native multi-agent orchestration.

🧱 secure, local and programmable sandboxes for AI agents

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

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

Instant, Concurrent, Secure & Lightweight Sandbox for AI Agents.

🧊 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

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.

Own your AI. The native macOS harness for AI agents -- any model, persistent memory, autonomous execution, cryptographic identity. Built in Swift. Fully offline. Open source.

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