Build, explain, and validate cron expressions

{
  "mcpServers": {
    "json-forge": {
      "args": [
        "-y",
        "json-forge-mcp"
      ],
      "command": "npx"
    },
    "web-scraper": {
      "args": [
        "-y",
        "sovereign-web-scraper-mcp"
      ],
      "command": "npx"
    },
    "seo-analyzer": {
      "args": [
        "-y",
        "sovereign-seo-analyzer-mcp"
      ],
      "command": "npx"
    }
  }
}