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io.github.bbajt/codemap-mcp · v1.4.0

Roslyn-powered MCP server for C#/VB.NET. Query symbols, call graphs, and facts. 90%+ token savings.

Connect Runs on your machine

Terminal
claude mcp add codemap-mcp -e CODEMAP_CACHE_DIR=<CODEMAP_CACHE_DIR> -- dnx codemap-mcp --yes
claude_desktop_config.json
{
  "mcpServers": {
    "codemap-mcp": {
      "command": "dnx",
      "args": [
        "codemap-mcp",
        "--yes"
      ],
      "env": {
        "CODEMAP_CACHE_DIR": "<CODEMAP_CACHE_DIR>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "codemap-mcp": {
      "command": "dnx",
      "args": [
        "codemap-mcp",
        "--yes"
      ],
      "env": {
        "CODEMAP_CACHE_DIR": "<CODEMAP_CACHE_DIR>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "codemap-mcp": {
      "type": "stdio",
      "command": "dnx",
      "args": [
        "codemap-mcp",
        "--yes"
      ],
      "env": {
        "CODEMAP_CACHE_DIR": "<CODEMAP_CACHE_DIR>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

NameDescription
CODEMAP_CACHE_DIR
Optional
Path to a shared baseline cache directory. When set, index.ensure_baseline checks the cache before running a full Roslyn build — useful on CI or shared machines.

Details

Package[email protected] (NUGET, stdio)
First published2 Apr 2026
Last updated2 Apr 2026
Registry nameio.github.bbajt/codemap-mcp

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