code-atlas-mcp

MCP server for code visualization. Generates Mermaid diagrams showing call graphs and control flow for TypeScript, JavaScript, and Python codebases.

Installation

``bash
npx code-atlas-mcp
`

Or install globally:

`bash
npm install -g code-atlas-mcp
`

Usage with Claude Code

Add to your Claude Code MCP settings:

`json
{
"mcpServers": {
"code-atlas": {
"command": "npx",
"args": ["code-atlas-mcp"]
}
}
}
`

Then ask Claude to analyze your code:

- "Show me the call graph for src/index.ts"
- "What's the control flow of the main function?"
- "Analyze the project structure in ./src"

Available Tools

| Tool | Description |
|------|-------------|
| atlas_discover_files | Find source files matching a pattern |
| atlas_list_functions | List functions in a file with line numbers |
| atlas_analyze_callgraph | Single-file call graph (Mermaid) |
| atlas_analyze_controlflow | Function control flow (Mermaid) |
| atlas_analyze_project` | Multi-file call graph (Mermaid) |

Supported Languages

- TypeScript (.ts, .tsx)
- JavaScript (.js, .jsx)
- Python (.py)

Web Viewer

For interactive visualization, use the Code Atlas Viewer. Generate JSON with the CLI and drop it in the viewer.

Related

- Code Atlas Viewer - Interactive web visualization
- Project Page - Full project details

License

MIT