RatedWithAI accessibility checker

Scan a live web page for WCAG 2.1/2.2 AA issues with axe-core: score, grade, failing rules.

使うべきか

品質と安全性

A
説明の品質
100%
スキーマの完全性
100%
命名の品質
80%
ポイズニングのリスク
100%
権限の一致
100%
プロトコルへの準拠
100%

ツール定義とプロトコルへの準拠に関する自動分析に基づいています。

コンテキストコスト

~763トークン数(ツール定義)
~3.0 KB一般的なレスポンスサイズ
注意への影響は中程度(128k コンテキストの 0.60%)

これは、サーバーのツールがモデルのコンテキストに読み込まれるたびに消費されるおおよそのトークン数です。数が多いほど、ほかのタスクに使える注意が減ります。

インストール

ワンクリックインストール

これを `claude_desktop_config.json` ファイルに追加してください:

{
  "mcpServers": {
    "accessibility-checker": {
      "url": "https://ratedwithai.com/api/mcp"
    }
  }
}

リモートエンドポイント

https://ratedwithai.com/api/mcpstreamable-http

できること

ツール一覧

ツール(2)

🟢 読み取り専用🟡 書き込み🔴 削除⚪ 不明
🟢scan_accessibility(url)

Use this when the user wants a public website or web page checked for accessibility (WCAG 2.1/2.2 AA, ADA, EAA, Section 508): it loads the live page in a real browser, runs axe-core on it and up to two more same-site pages, and returns a 0-100 score, a letter grade and the failing rules with example elements. Takes 15-40 seconds. Do not use it for pages that need a login, for localhost or private-network addresses, or for pasted HTML.

入力スキーマ

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "Public website address, e.g. example.com or https://example.com/about"
    }
  },
  "required": [
    "url"
  ],
  "additionalProperties": false
}

出力スキーマ

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "The URL that was scanned, after normalisation."
    },
    "score": {
      "type": "number",
      "description": "0-100, weighted by violation severity."
    },
    "grade": {
      "type": "string",
      "enum": [
        "A",
        "B",
        "C",
        "D",
        "F"
      ]
    },
    "pagesScanned": {
      "type": "integer"
    },
    "failingRuleCount": {
      "type": "integer"
    },
    "affectedElementCount": {
      "type": "integer"
    },
    "needsReviewCount": {
      "type": "integer",
      "description": "Checks axe could not decide automatically; a human must confirm them."
    },
    "rulesOmitted": {
      "type": "integer",
      "description": "Failing rules not listed because the response is capped."
    },
    "violations": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "ruleId": {
            "type": "string"
          },
          "impact": {
            "type": "string"
          },
          "summary": {
            "type": "string"
          },
          "wcag": {
            "type": "array",
            "items": {
              "type": "string"
            }
          },
          "elementCount": {
            "type": "integer"
          },
          "examples": {
            "type": "array",
            "items": {
              "type": "object",
              "properties": {
                "selector": {
                  "type": "string"
                },
                "html": {
                  "type": "string"
                }
              },
              "required": [
                "selector",
                "html"
              ]
            }
          }
        },
        "required": [
          "ruleId",
          "impact",
          "summary",
          "wcag",
          "elementCount",
          "examples"
        ]
      }
    },
    "scannedAt": {
      "type": "string"
    },
    "moreInfoUrl": {
      "type": "string",
      "description": "Informational page on scheduled re-scans and fix help for this kind of result."
    }
  },
  "required": [
    "url",
    "score",
    "grade",
    "pagesScanned",
    "failingRuleCount",
    "affectedElementCount",
    "needsReviewCount",
    "rulesOmitted",
    "violations",
    "scannedAt",
    "moreInfoUrl"
  ]
}
🟢explain_accessibility_issue(rule_id)

Use this when the user asks what an axe-core accessibility rule means or how to fix it — typically a ruleId returned by scan_accessibility, such as color-contrast, image-alt, label or link-name. Returns plain-English steps and a code example. Do not use it to scan a site; use scan_accessibility for that.

入力スキーマ

{
  "type": "object",
  "properties": {
    "rule_id": {
      "type": "string",
      "description": "axe-core rule id, e.g. color-contrast"
    }
  },
  "required": [
    "rule_id"
  ],
  "additionalProperties": false
}

出力スキーマ

{
  "type": "object",
  "properties": {
    "ruleId": {
      "type": "string"
    },
    "known": {
      "type": "boolean"
    },
    "summary": {
      "type": "string"
    },
    "steps": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "codeExample": {
      "type": "string"
    },
    "referenceUrl": {
      "type": "string"
    }
  },
  "required": [
    "ruleId",
    "known",
    "summary",
    "steps",
    "referenceUrl"
  ]
}

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