Viaduct vs Monitaur

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Viaduct compared with Monitaur
Detail	Viaduct	Monitaur
What it does	Free C4 modeling tool with an MCP server for software teams to share architecture context with AI development tools	AI governance software that goes beyond good intentions
Stage	Not given	Established
Founded	Not given	2019
Based in	LT	US
Pricing model	Freemium	Not given
Pricing	Browser: Free with account. Desktop: €10 a month after 7-day free trial, one licence covers 3 machines. Enterprise: custom pricing.	Not given
Key features	System context, container, component, and code diagrams Live collaboration on models MCP server for AI coding agents Change sets for scoped agent work Organization SSO JSON import and export OpenAPI contract export Desktop app for macOS, Windows, Linux AI assistant for model descriptions Installable PWA	Drift and bias monitoring Continuous model monitoring and validation Integration with MLOps and GRC systems
What makes it different	Model elements exist once and appear on every level they belong to Endpoints are real OpenAPI documents, not diagram labels Desktop app keeps all data local and offline-capable Free browser version with no paywall or feature limits AI agents read and write architecture through MCP	Recognized by Forrester as a Strong Performer and Customer Favorite in AI governance Transforms AI governance from a barrier into a business enabler for innovation Team of deep domain experts in machine learning, assurance, corporate innovation, and software development
Community votes	0	0
DR (Domain Rating by Ahrefs)	20 no change since last check	49 no change since last check
Trust Flow (Majestic)	10	13
Citation Flow (Majestic)	28	39
Referring domains (Majestic)	74	559

4 details filled in for both companies.

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