WSG Check MCP

An MCP server that checks websites against automated heuristics based on the W3C Web Sustainability Guidelines. It provides tools to check a URL, list available guidelines, and retrieve specific guideline details, returning reports on sustainability scores and recommendations.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Community listingLocal stdioSource reviewed; not executedPublished by ivanoats

Vendor documentation

What you can do with it

Check a website's sustainability score
List available W3C Web Sustainability Guidelines
Retrieve details for a specific guideline

Source and maintenance

Community listingRegistry 0.6.2

mcp-registry: io.github.ivanoats/wsg-check@0.6.2 Source repository Project website

Maintenance checked: Oct 31, 2026, 10:27 PM UTC

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

@sustainablewebsites/wsg-check 0.6.2

npmnpx

@sustainablewebsites/wsg-check package definition

{
  "version": "0.6.2",
  "transport": "stdio",
  "identifier": "@sustainablewebsites/wsg-check",
  "runtimeHint": "npx",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "packageArguments": [
    {
      "type": "positional",
      "value": "--mcp",
      "description": "Runs the MCP server over stdio instead of a one-off check"
    }
  ],
  "environmentVariables": [
    {
      "name": "WSG_CHECK_NO_LOCAL",
      "format": "boolean",
      "description": "Set to 1 to block localhost and other loopback URLs, which are allowed by default"
    },
    {
      "name": "WSG_CHECK_ALLOW_PRIVATE",
      "format": "boolean",
      "description": "Set to 1 to allow private network URLs (10/8, 172.16/12, 192.168/16)"
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "wsg-check-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@sustainablewebsites/wsg-check@0.6.2",
        "--mcp"
      ],
      "env": {
        "WSG_CHECK_NO_LOCAL": "<YOUR_WSG_CHECK_NO_LOCAL>",
        "WSG_CHECK_ALLOW_PRIVATE": "<YOUR_WSG_CHECK_ALLOW_PRIVATE>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "wsg-check-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@sustainablewebsites/wsg-check@0.6.2",
        "--mcp"
      ],
      "env": {
        "WSG_CHECK_NO_LOCAL": "<YOUR_WSG_CHECK_NO_LOCAL>",
        "WSG_CHECK_ALLOW_PRIVATE": "<YOUR_WSG_CHECK_ALLOW_PRIVATE>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "wsg-check-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@sustainablewebsites/wsg-check@0.6.2",
        "--mcp"
      ],
      "env": {
        "WSG_CHECK_NO_LOCAL": "<YOUR_WSG_CHECK_NO_LOCAL>",
        "WSG_CHECK_ALLOW_PRIVATE": "<YOUR_WSG_CHECK_ALLOW_PRIVATE>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "wsg-check-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@sustainablewebsites/wsg-check@0.6.2",
        "--mcp"
      ],
      "env": {
        "WSG_CHECK_NO_LOCAL": "<YOUR_WSG_CHECK_NO_LOCAL>",
        "WSG_CHECK_ALLOW_PRIVATE": "<YOUR_WSG_CHECK_ALLOW_PRIVATE>"
      }
    }
  }
}

Let your agent find its tools

Find servers like WSG Check MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.

Connect Koskamo Explore workflows

See all 7,396