MASFactory

MASFactory is a graph centric framework for building and orchestrating multi agent AI systems. Its central idea, called Vibe Graphing, starts from a natural language description of the intended system, generates a graph design automatically, lets the user refine and confirm it through dialogue in a visual environment, and then compiles it into an executable workflow. Systems are described with nodes and edges that define collaboration and message protocols, with support for subgraphs, loops, branches and reusable components. Building blocks include Agent units with roles, instructions, tools, memory and retrieval, Graph, Loop, Switch for dynamic routing, and Human nodes that bring confirmation and editing into a workflow. A ContextBlock protocol unifies memory, retrieval augmented generation and MCP as context sources. A companion Visualizer provides topology preview, runtime tracing of node states, messages and shared context, and human in the loop controls. Users can author workflows three ways: through natural language with Vibe Graphing, through declarative or imperative code, or by drag and drop in the Visualizer. The site is available in English and Chinese, links to GitHub, documentation and a paper, and shows two online demo applications built with the framework. It is aimed at developers and researchers building multi agent systems who want visibility into how agents interact at runtime. The site does not publish pricing.