agent-framework

AgentOS

TypeScript agent framework with runtime tool generation and cognitive memory

Google Agent Development Kit (ADK)

Google's open-source, code-first toolkit for building and deploying AI agents

LangGraph

Low-level orchestration framework for stateful, long-running AI agents.

Mastra

TypeScript-native framework for AI agents, workflows and memory.

Microsoft Agent Framework

Microsoft's open-source SDK for building AI agents and multi-agent workflows

Lightweight Python framework for multi-agent workflows from OpenAI.

Pydantic AI

Type-safe Python agent framework from the Pydantic team.

VoltAgent

Open-source TypeScript framework for building and orchestrating AI agents