code-atlas-mcp

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

Installation

npx code-atlas-mcp

Or install globally:

npm install -g code-atlas-mcp

Usage with Claude Code

Add to your Claude Code MCP settings:

{
  "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