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Source Map Parser Mcp

io.github.MasonChow/source-map-parser-mcp ยท v1.3.2

Parse JavaScript error stack traces back to original source code using source maps

Source code Set it up

Connect Runs on your machine

Terminal
claude mcp add source-map-parser-mcp -e SOURCE_MAP_PARSER_CONTEXT_OFFSET_LINE=<SOURCE_MAP_PARSER_CONTEXT_OFFSET_LINE> -e SOURCE_MAP_PARSER_RESOURCE_CACHE_MAX_SIZE=<SOURCE_MAP_PARSER_RESOURCE_CACHE_MAX_SIZE> -- npx -y [email protected]
claude_desktop_config.json
{
  "mcpServers": {
    "source-map-parser-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "SOURCE_MAP_PARSER_CONTEXT_OFFSET_LINE": "<SOURCE_MAP_PARSER_CONTEXT_OFFSET_LINE>",
        "SOURCE_MAP_PARSER_RESOURCE_CACHE_MAX_SIZE": "<SOURCE_MAP_PARSER_RESOURCE_CACHE_MAX_SIZE>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "source-map-parser-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "SOURCE_MAP_PARSER_CONTEXT_OFFSET_LINE": "<SOURCE_MAP_PARSER_CONTEXT_OFFSET_LINE>",
        "SOURCE_MAP_PARSER_RESOURCE_CACHE_MAX_SIZE": "<SOURCE_MAP_PARSER_RESOURCE_CACHE_MAX_SIZE>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "source-map-parser-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "SOURCE_MAP_PARSER_CONTEXT_OFFSET_LINE": "<SOURCE_MAP_PARSER_CONTEXT_OFFSET_LINE>",
        "SOURCE_MAP_PARSER_RESOURCE_CACHE_MAX_SIZE": "<SOURCE_MAP_PARSER_RESOURCE_CACHE_MAX_SIZE>"
      }
    }
  }
}

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
SOURCE_MAP_PARSER_CONTEXT_OFFSET_LINE
Optional		Context lines around error locations in source code
SOURCE_MAP_PARSER_RESOURCE_CACHE_MAX_SIZE
Optional		Maximum memory cache size in MB for source maps

Details

Package[email protected] (NPM, stdio)
First published10 Sep 2025
Last updated10 Sep 2025
Registry nameio.github.MasonChow/source-map-parser-mcp

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