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Mintlify vs Viaduct
Short answer: Pick Mintlify if you want self-updating AI-native docs; pick Viaduct if you want C4 architecture modeling with AI integration. Mintlify has a free plan, paid from $45/month; Viaduct has a free plan, paid from €10/month.
MintlifyDeveloper documentation platform
ViaductViaduct is a free C4 modeling tool for software teams, with a hosted MCP server that feeds your…Which to pick
Pick Mintlify if you want…
- Self-updating AI-native docs
- Developer documentation platform
- Integrations with OAuth, JWT or SSO (on Mintlify's list, not Viaduct's)
Pick Viaduct if you want…
- C4 architecture modeling with AI integration
- Integrations with Cursor, Claude Code or Claude Desktop (on Viaduct's list, not Mintlify's)
Side by side
- What it is
- Mintlify:Mintlify is a developer documentation platform that auto-updates docs with AI and supports agent-native features.
- Viaduct:Viaduct is a free C4 modeling tool that lets software teams create, share, and sync architecture models with AI agents via a hosted MCP server.
- Best for
- Mintlify:Self-updating AI-native docs
- Viaduct:C4 architecture modeling with AI integration
- Who it’s for
- Mintlify:Product teams, developers, and enterprises building AI agents.
- Viaduct:Software teams that need collaborative architecture modeling and AI-assisted documentation.
- Pricing
- Mintlify:Freemium
- Viaduct:Freemium
- Starting price
- Mintlify:$45/month (Pro)
- Viaduct:€10/month (Desktop licence)
- Free plan or trial
- Mintlify:Free plan (Starter) · Free trial
- Viaduct:Free plan (Browser (free)) · Free trial
- Plans
- Mintlify:Starter $0 · Pro $45 per month
- Viaduct:Browser (free) €0 · Desktop licence €10 per month
- Works with
- Mintlify:OAuth, JWT, SSO, API playground, Git sync
- Viaduct:Cursor, Claude Code, Claude Desktop, GitHub, GitLab, Google
Mintlify features
- Self-updating knowledge. AI keeps documentation current as code changes.
- Agent-native platform. Docs can be queried by AI agents via built-in assistant.
- Collaborative web editor. Team members edit docs together in a browser.
- Custom domain & SEO. Publish docs on your own domain with SEO optimizations.
- Authentication & SSO. Supports password, OAuth, JWT and enterprise SSO.
- Analytics & insights. Track usage, search, and agent interactions.
- Integrations & webhooks. Connect docs to external systems via APIs and webhooks.
- Automations & preview deployments. Automate updates and preview changes before publishing.
Viaduct features
- Full C4 modeling. Create system context, container, component and code diagrams in one editor.
- Hosted MCP server. Provides a machine-readable context for AI agents to read and write architecture data.
- Live collaboration. Team projects with change sets and real-time sharing.
- AI assistant. Generates missing descriptions, names, and reviews model elements for you.
- Desktop app. Native app with local MCP server, offline work and JSON file storage.
- Import/Export. Import OpenAPI specs and export models or contracts as JSON or OpenAPI.
Mintlify vs Viaduct FAQ
What is the difference between Mintlify and Viaduct?+
Mintlify: Focuses on documentation generation, not C4 architecture modeling.
Should I use Mintlify or Viaduct?+
Pick Mintlify if you want self-updating AI-native docs, developer documentation platform or integrations with OAuth, JWT or SSO (on Mintlify's list, not Viaduct's). Pick Viaduct if you want C4 architecture modeling with AI integration or integrations with Cursor, Claude Code or Claude Desktop (on Viaduct's list, not Mintlify's).
Is Mintlify or Viaduct free?+
Mintlify has a free plan (Starter); paid plans start at $45/month (Pro). Viaduct has a free plan (Browser (free)); paid plans start at €10/month (Desktop licence).
Which is cheaper, Mintlify or Viaduct?+
Mintlify starts at $45/month (Pro) and Viaduct starts at €10/month (Desktop licence); the plans are billed differently, so compare what's included.
Do Mintlify and Viaduct integrate with the same tools?+
Their integration lists don't overlap: Mintlify lists OAuth, JWT, SSO, API playground and 1 more; Viaduct lists Cursor, Claude Code, Claude Desktop, GitHub and 2 more.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.