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Viaduct vs Dike

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 Dike
DetailViaduct logo ViaductDike logo Dike
What it doesFree C4 modeling tool with an MCP server for software teams to share architecture context with AI development tools Compliance gateway for AI products in the EU
StageNot given MVP
FoundedNot given Not given
Based inLT HU
Pricing modelFreemium Not given
PricingBrowser: Free with account. Desktop: €10 a month after 7-day free trial, one licence covers 3 machines. Enterprise: custom pricing. Starter: €49/month for 10K traces/month with unlimited users and API access. Enterprise: €199/month for 100K traces/month with unlimited users, API access, SLA guarantee and priority support. Custom: Contact for unlimited traces with unlimited users, API access, SLA guarantee, priority support, cust
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
  • Hash-chained audit records with cryptographic verification
  • PII redaction at the gateway before storage
  • Malicious call blocking and prompt injection prevention
  • Human oversight approval workflow
  • AI-generated content marking
  • RAG reference document tracking
  • 15-day incident reporting clock for Article 73 compliance
  • Minimal latency overhead with streaming support
  • Fail-open design ensures production stability
  • Single base-URL configuration with no SDK changes
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
  • Builds audit compliance automatically, not with months of engineering work
  • Integrates with one base-URL change, no code modifications required
  • Tamper-evident audit trail with cryptographic verification for regulators
  • Records actual evidence documents used by RAG models
Community votes00
DR (Domain Rating by Ahrefs)3 +1 (up) since last checkNot checked yet no change since last check
Trust Flow (Majestic)100
Citation Flow (Majestic)2817
Referring domains (Majestic)7424

5 details filled in for both companies.

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