| What it does | Free C4 modeling tool with an MCP server for software teams to share architecture context with AI development tools
| Design PCBs with an agent that works in KiCad
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| Stage | Not given
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| Founded | Not given
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| Based in | LT
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| Pricing model | Freemium
| Free
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| Pricing | Browser: Free with account. Desktop: €10 a month after 7-day free trial, one licence covers 3 machines. Enterprise: custom pricing.
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| 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
| - AI agent drafts schematics and board layouts based on text descriptions
- Review changes as diffs before applying to your project
- Works directly on KiCad .kicad_pro files with no conversion needed
- Catalog of open hardware projects to explore and edit
- Manufacturing checks and ordering integration
- 3D board preview and visualization
- Browser-based project exploration without desktop app
- MCP server support for Claude Code and Codex
- Autorouter and design rule checker integration
- Cross-platform support for macOS, Windows and Linux
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| 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
| - AI agent works inside real KiCad, not screenshots, with every change reviewable as a diff
- Completely free to download and use with no conversion or lock-in of your files
- Catalog of open hardware designs ready to build or fork
- Integrated manufacturing workflow from design review to order
- Works with existing KiCad projects without requiring reimport
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 20 ● no change since last check | 10 ● no change since last check |
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| Trust Flow (Majestic) | 10 | 0 |
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| Citation Flow (Majestic) | 28 | 21 |
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| Referring domains (Majestic) | 74 | 17 |
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Viaduct
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