Alternatives to Designing Multiagent Systems

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

OpenAI Agents SDK: Lightweight Python framework for building multi-agent workflows with handoffs, sandboxing, and voice.

Microsoft's open-source framework for building multi-agent AI workflows.

Flowith is an agentic canvas for multimodal AI creation with persistent context.

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

Zhipu GLM delivers open-source LLM models, MaaS APIs, and autonomous agents for Chinese enterprises and developers.

The frontend stack for agentic user experience — drop-in chat, generative UI, and shared state for React apps on any AG-UI backend

Agent evaluation and simulation platform that catches hallucinations before they reach production

Imbue is an open AI lab building coding agent tools that run in parallel and answer to you, not a vendor.

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

Durable execution for background jobs, workflows, and AI agents — written in your own code

Mastra is an open-source TypeScript agent framework for building durable AI agents and workflows that run for days.

The integration layer for AI agents: managed auth + 10,000+ tools across 3,000+ APIs.

Agent enablement platform for governing, testing, and optimizing AI agent skills across your dev team.

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

Agentic AI for the entire DevSecOps lifecycle in GitLab.

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

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

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

Pydantic AI is the Python AI SDK for typed agents, realtime voice, image generation, and embeddings — every model a string swap away.

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

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

Self-hosted cloud dev environments with governed AI agent and LLM control for enterprises.

Moonshot AI's agentic workspace for coding, research, and knowledge work.

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

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

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

Open-source AI agent that learns from you and automates tasks across 20+ chat platforms

Self-hosted open-source SuperAgent for deep research, coding, and creation.

Open research workspace uniting agentic AI research, real-time collaborative LaTeX/Typst/Markdown writing, and browser-based notebooks.