All Stacks
Multi-Agent AI

Multi-Agent Developer Stack

Build production multi-agent systems with the tools that cover orchestration, observability, model access, and visual flow building — end to end.

Tools in This Stack

1
CrewAI logo
CrewAI

Developer Tools

free

Build and deploy collaborative multi-agent workflows with an open-source framework used by a large share of Fortune 500 companies, plus a paid cloud platform for execution hosting and monitoring.

2
AutoGen logo
AutoGen

Developer Tools

free

Build LLM-based multi-agent systems with patterns like GroupChat — Microsoft's original AutoGen repo is now in maintenance mode, merged into the new Microsoft Agent Framework, with the AG2 community fork continuing active development.

3
LangSmith logo
LangSmith

Developer Tools

freemium

Debug, test, and monitor LLM applications and agents in production with LangChain's observability platform, billed by trace volume and seats.

4
Replicate logo
Replicate

Developer Tools

paid

Run and deploy machine learning models via API with per-second usage billing and no idle costs for public models.

5
Flowise logo
Flowise

Developer Tools

freemium

Assemble chatbots and multi-agent workflows on a drag-and-drop canvas without writing backend code. Acquired by Workday in August 2025 and being integrated into their platform.