An open agent platform that runs on your machine and works from the chat apps you already use

DeepSeek Harness: Everything is a Plugin.

Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.

The open-source app everyone uses to manage agents at work

Build AI Agents, Visually

Mastra is the modern TypeScript framework for AI-powered applications and agents.

The AI Toolkit for TypeScript. From the creators of Next.js, the AI SDK is a free open-source library for building AI-powered applications and agents

The open-source control plane for coding agents.

Building applications with LLMs through composability

The open-source hub to build & deploy GPT/LLM Agents

Generative UI SDK for React

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

The sandbox agent framework.

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

A filesystem-first framework for durable AI agents

SDK that enhances your applications with AI capabilities

Data framework for your LLM applications. Focus on server side solution

Multi-harness control plane for Claude Code, Codex, Cursor, and OpenCode: quota-aware rotation across multiple Claude/Codex subscriptions, shared thread context, and cross-model review.

Local AI coding orchestration for repo-scale work: LLM-council planning, Ralph-loop recovery, isolated OpenCode worktrees, and human-gated PR delivery.