Lucid Train
Generates architecture diagrams from code and uses them as specifications for coding agents.

What is Lucid Train?
Lucid Train is a Code Generation tool that generates architecture diagrams from code and uses them as specifications for coding agents. Lucid Train is free to use. A free trial of 7 days is available. It is available on Web App, Windows, macOS and Linux. It is aimed at developers and software architects.
Lucid Train generates architecture diagrams from your codebase, then hands the diagram to a coding agent as a specification. It operates locally with no internet connection required.
Built for developers and software architects.
Features
Multi-project workspaces
Reviewable diffs & approvals
Command palette
MCP & skills
Voice & vision
Design mode
Dependency & MCP audit
Grafana in the window
One app. Every surface
Use cases
- Generate architecture diagrams from codebases
- Use diagrams as specifications for coding agents
- Manage multiple projects in a single workspace
- Access commands quickly via a command palette
- Audit dependencies and model configurations
Who it's for
- Developers
- Software Architects
Pros & cons
Pros
- Public API available
- Free plan available
- Operates locally with no internet connection
- Supports multiple platforms including web, Windows, macOS, and Linux
Cons
No documented limitations yet.
Pricing
Free. Free trial of 7 days available.
| Plan | Price |
|---|---|
| Free | Free |
AI models
- GPT 5
- DeepSeek V4
Developer & API
Public MCP API available
Open source
FAQ
What is Lucid Train?
Lucid Train is a Code Generation tool that generates architecture diagrams from code and uses them as specifications for coding agents. Lucid Train generates architecture diagrams from your codebase, then hands the diagram to a coding agent as a specification. It operates locally with no internet connection required.
Is Lucid Train free?
Yes, Lucid Train is free to use.
How much does Lucid Train cost?
Lucid Train offers one plan: Free (Free).
Does Lucid Train have an API?
Yes, Lucid Train offers a public MCP API for building custom integrations.
What platforms does Lucid Train support?
Lucid Train is available on Web App, Windows, macOS and Linux.
Who should use Lucid Train?
Lucid Train is built for developers and software architects. Common uses: generate architecture diagrams from codebases, use diagrams as specifications for coding agents, manage multiple projects in a single workspace and access commands quickly via a command palette.
Is Lucid Train open source?
Yes, Lucid Train is open source.
What are the best alternatives to Lucid Train?
Similar tools on AiByts include GitHub Copilot, CodeHealth MCP Server by CodeScene, Amazon Q Developer CLI, Blackbox AI and CodeSpotlight.
Details are compiled from Lucid Train's website and public sources, last verified Oct 5, 2026. Features and pricing change — confirm on the official site before you buy.
Try Lucid Train
Free
Tags
- Architecture Diagram
- Code Analysis
- Local LLM
- C4 Model
- Diagram to Code
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