Back to OpenAI Agents SDK

Alternatives to OpenAI Agents SDK

30 tools that compete with or replace OpenAI Agents SDK. Ranked by direct product-type match — not generic category overlap.

Last updated
Cross-checked through our multi-step verification ·
AutoGen

AutoGen

Open-source framework for building multi-agent AI workflows.

FreeTry
Mastra

Mastra

Open-source TypeScript framework for building durable, observable AI agents and workflows.

FreemiumTry
MetaGPT

MetaGPT

Open-source multi-agent framework for role-based software engineering

FreeTry
Semantic Kernel

Semantic Kernel

Microsoft's open-source SDK for building production-grade AI agents with plugins, memory, and orchestration.

FreeTry
Paseo

Paseo

Run any AI coding agent from anywhere — self-hosted, multi-provider, open source.

FreeTry
DB-GPT

DB-GPT

Open-source agentic AI data assistant for SQL, code, and reports

FreeTry
Zhipu GLM

Zhipu GLM

China's leading open-source LLM platform with agentic autonomy and full-stack MaaS APIs.

FreemiumTry
Microsoft Agent Framework

Microsoft Agent Framework

Microsoft's framework for building production-grade agentic AI on Azure, with Python, C#, and Go SDKs and a GA Agent Harness runtime.

PaidTry
Phidata

Phidata

Open-source Python framework for building and running private, production multi-agent systems.

FreemiumTry
TaskWeaver

TaskWeaver

Microsoft's open-source, code-first agent framework for stateful, data-intensive conversational tasks.

FreeTry
Hermes Desktop

Hermes Desktop

Open-source desktop AI agent with autonomous learning loop and deep memory

FreeTry
Opensquilla

Opensquilla

Open-source AI agent with smart routing that cuts token costs 60-80%.

FreeTry
Gorilla

Gorilla

Open-source LLM that turns natural language into API calls for tool-using agents

FreeTry
Hermes-Agent

Hermes-Agent

Open-source AI agent that automates 20+ messaging platforms with persistent memory.

FreemiumTry
CowAgent

CowAgent

Open-source, self-hosted AI agent that plans tasks, runs tools, and evolves memory across 10+ channels.

FreeTry
CopilotKit

CopilotKit

React frontend stack for building agentic user experiences with generative UI

FreemiumTry
Imbue

Imbue

Open AI toolkit for loyal, auditable coding agents.

FreemiumTry
Inngest

Inngest

Durable execution for workflows & AI agents — no queues or infrastructure

FreemiumTry
Pipedream

Pipedream

Developer-first platform to connect APIs, AI, and databases via workflows and agents.

FreemiumTry
SmolAgents

SmolAgents

Hugging Face's barebones Python library for AI agents that act by writing code.

FreeTry
AgentScope

AgentScope

Open-source framework for building distributed multi-agent AI systems

FreeTry
Activepieces

Activepieces

Open-source AI-first automation platform for building workflows and AI agents without code.

FreemiumTry
Flowith

Flowith

Visual AI agent canvas for infinite-context multimodal creation

FreemiumTry
Agno

Agno

Open-source Python SDK and self-hosted runtime for building, running, and managing production agent platforms.

FreemiumTry
Dify

Dify

Open-source platform for building and deploying agentic workflows and RAG pipelines with a visual builder.

FreemiumTry
Pydantic AI

Pydantic AI

Pydantic AI: Python SDK for typed, production-grade AI agents with every model a string swap away.

FreeTry
GitLab Duo

GitLab Duo

Agentic AI for the entire DevSecOps lifecycle in GitLab.

FreemiumTry
Future AGI

Future AGI

Simulation-based AI agent testing that catches hallucinations before production

FreemiumTry
Tessl

Tessl

Tessl is the agent enablement platform for governing, testing, and optimizing AI agent skills.

FreemiumTry
Capafy AI

Capafy AI

Marketplace for ready-made AI agent skills you can run, publish, and monetize.

FreemiumTry

Frequently asked questions

What are the best alternatives to OpenAI Agents SDK?

We currently list 30 alternatives to OpenAI Agents SDK: AutoGen, Mastra, MetaGPT, Semantic Kernel, Paseo. Each is ranked by direct product-type match rather than generic category overlap.

How do you choose which OpenAI Agents SDK alternatives to show?

Alternatives are ranked by direct product-type match — tools that do the same job — not by shared category tags. Every listed tool is independently re-verified on a continuous cycle.