Best orchestrators

An orchestrator is the conductor: software that gets several AI agents, tools and steps working together on one job. There is no single best one. The right choice depends on whether you write code and which tools you already use.

No coding neededBuild by dragging and connecting boxes

n8n

Open source, can be self-hosted

A visual workflow builder where you link apps and AI steps together on a canvas. Popular because you can run it on your own server.

Best for: Teams who want control over their data without writing much code.

Zapier

Zapier

The best-known automation tool, now with AI steps and agents. Connects to thousands of everyday apps.

Best for: Complete beginners automating everyday tasks between common apps.

Microsoft Copilot Studio

Microsoft

A visual builder for creating AI agents that work inside Microsoft 365 and Teams.

Best for: Organisations already running on Microsoft.

For developersCode-first frameworks

LangGraph

LangChain

Lets you map out an agent system as a flowchart with loops, memory and pause points, so a workflow can wait for a person and pick up where it left off.

Best for: Complex, long-running workflows that need approval steps.

CrewAI

CrewAI

You set up a crew of agents and give each one a role, like researcher, writer and editor, then they work through a task together.

Best for: Getting a multi-agent prototype working quickly.

Microsoft Agent Framework

Microsoft

Reached version 1.0 in April 2026, merging Microsoft's earlier AutoGen and Semantic Kernel projects into one toolkit for Python and .NET.

Best for: Companies building on Azure and the Microsoft stack.

OpenAI Agents SDK

OpenAI

A lightweight toolkit built around agents handing tasks to one another. Tuned for OpenAI's own models.

Best for: Fast prototypes when you already use OpenAI.

Google ADK

Google

Google's Agent Development Kit for building and deploying agent systems, designed to fit Gemini and Google Cloud.

Best for: Teams already on Google Cloud.

Claude Agent SDK

Anthropic

Anthropic's toolkit, with built-in handoffs between agents and support for so agents can discover and use tools in a standard way.

Best for: Teams building on Claude who want standardised tool connections.

Compiled from 2026 comparison guides by Rasa, TrueFoundry, LangChain, Coworker. Several of these are written by companies that sell their own tools, so treat rankings with care. Last checked 25 September 2026.