Open-source alternatives to OpenAI AgentKit

OpenAI AgentKit in the AI category. These are the open alternatives we recommend looking at.

Dify

Build AI agents and RAG apps visually.

LicenseRef-DifyCustom licence

SaaS: NoClosed product: Unclear – verify

GitHub stars: 158k
Deployment: Docker, Helm

Paperclip

Control plane for running AI agents at work: goals, tasks, approvals, budgets and governance.

MITPermissivenot verified

SaaS: YesClosed product: Yes

GitHub stars: 96.5k
Deployment: Docker, Local install

Sim

Web workspace where teams build, deploy and monitor AI agents and workflows visually.

Apache-2.0PermissiveOpen core

SaaS: YesClosed product: Yes

GitHub stars: 29.8k
Deployment: Docker

Strands Agents (Harness SDK)

SDK for Python and TypeScript for building production AI agents, independent of model and cloud.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

GitHub stars: 8.6k
Deployment: Library

Strands Agent SOP

Format for describing work procedures in natural language so that AI agents carry out multi-step tasks predictably.

Apache-2.0PermissiveYoung project

SaaS: YesClosed product: Yes

GitHub stars: 1.2k
Deployment: Library

AutoGPT

Platform for building and running autonomous AI agents that carry out multi-step tasks.

LicenseRef-PolyForm-Shield-1.0.0Source-available (not OSI)

SaaS: NoClosed product: No

GitHub stars: 188k
Deployment: Docker

LangChain

Framework for developers building apps and agents on top of language models, with ready-made integrations for models, tools and data sources.

MITPermissive

SaaS: YesClosed product: Yes

GitHub stars: 147k
Deployment: Library

AutoGen

Programming framework from Microsoft for building AI agents that work together with each other and with people.

MITPermissive

SaaS: YesClosed product: Yes

GitHub stars: 61.2k
Deployment: Library

CrewAI

Python framework for letting several AI agents with different roles work together on a task.

MITPermissive

SaaS: YesClosed product: Yes

GitHub stars: 59.3k
Deployment: Library

LangGraph

Library for building agents as graphs of steps, with persisted state, interruptions and human approval.

MITPermissive

SaaS: YesClosed product: Yes

GitHub stars: 42.7k
Deployment: Library

Agno

Python framework and runtime for building, running and monitoring AI agents and multi-agent systems.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

GitHub stars: 42.5k
Deployment: Library

OpenAI Agents SDK

Lightweight Python framework from OpenAI for multi-agent workflows, hand-offs between agents and tracing.

MITPermissive

SaaS: YesClosed product: Yes

GitHub stars: 29.8k
Deployment: Library

smolagents

Small Python library from Hugging Face for agents that solve tasks by writing and running code.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

GitHub stars: 29.7k
Deployment: Library

Mastra

TypeScript framework for building AI agents, workflows and RAG.

Apache-2.0PermissiveOpen core

SaaS: YesClosed product: Yes

GitHub stars: 28.5k
Deployment: Library

Letta

Platform for AI agents with long-term memory that keep their state between conversations.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

GitHub stars: 25k
Deployment: Docker

VoltAgent

TypeScript framework for AI agents with tools, memory and workflows, plus a console for following runs.

MITPermissive

SaaS: YesClosed product: Yes

GitHub stars: 10.7k
Deployment: Library

This is guidance, not legal advice (inte juridisk rådgivning). Check with a lawyer before deciding.

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