AI Frameworks

A framework is a toolkit that developers use to build AI agents. Instead of starting from scratch, they pick a framework that handles the hard parts — memory, planning, tool connections — so they can focus on what their agent actually does. Think of it as the construction kit behind the scenes.

22 frameworks tracked

LangChain

Framework for building LLM-powered applications

Python framework 95000k stars

LlamaIndex

Data framework for LLM applications

Python framework 36000k stars

AutoGen

Multi-agent conversation framework by Microsoft

Python framework 35000k stars

Claude Agent SDK

Official SDK for building Claude-powered agents

Python framework 30000k stars

CrewAI

Framework for orchestrating AI agent crews

Python framework 22000k stars

Semantic Kernel

Microsoft's AI orchestration SDK

C#/Python framework 22000k stars

Haystack

End-to-end NLP framework by deepset

Python framework 17000k stars

OpenAI Agents SDK

OpenAI's framework for building AI agents

Python framework 15000k stars

A2A Go SDK

Official Golang SDK for building A2A-compliant agents and clients.

framework

A2A Java SDK

Official Java SDK for the Agent2Agent Protocol with Spring Boot support.

framework

A2A JavaScript SDK

Official JavaScript SDK for the Agent2Agent Protocol with client and server support.

framework

A2A Protocol

Open protocol by Google/Linux Foundation enabling communication and interoperability between AI agents.

framework

A2A Python SDK

Official Python SDK for running agentic applications as A2A-compliant servers.

framework

AgentUp

Developer-first, open-source AI agent framework with OAuth2/JWT auth and automatic A2A discovery.

framework

Artinet SDK

TypeScript A2A-compliant server/client SDK simplifying interoperable AI agent creation.

framework

AutoGen (AG2)

Microsoft's multi-agent conversation framework with native A2A protocol support.

framework

Cognisphere

AI agent development framework built on Google's ADK with multi-protocol support.

framework

Google ADK (Agent Development Kit)

Google's agent development kit with native A2A protocol integration and multi-agent support.

framework

LangGraph

Graph-based multi-agent orchestration framework by LangChain for stateful, production-grade agent apps.

framework

Mastra

TypeScript-first AI agent framework with MCP client support and workflow orchestration.

framework

Microsoft Semantic Kernel

AI orchestration SDK integrating LLMs with conventional programming for enterprise agents.

framework

a2a-rs (Rust)

Idiomatic Rust implementation of A2A following hexagonal architecture principles.

framework