CrewAI

Visual framework for building multi-agent and RAG applications. `#opensource` `#free`

An open-source framework that makes all software agent-native — auto-generates production-ready CLIs for any application via a 7-phase pipeline, enabling AI agents to control any desktop software. Supports 16+ AI agent platforms including Claude Code, OpenClaw, Codex and includes CLI-Hub for community CLI discovery.

Educational framework exploring ergonomic, lightweight multi-agent orchestration. Managed by OpenAI Solution team.

Mastra is an opinionated TypeScript framework that helps you build AI applications and features quickly. It gives you the set of primitives you need: workflows, agents, RAG, integrations and evals

GraphBit is a high-performance AI agent framework with a Rust core and seamless Python bindings.

A framework for building high-performance AI agents, developed by ByteDance. It provides a flexible and efficient way to orchestrate complex agent workflows with built-in support for various LLMs.