# Grammar Checker Object

> A snapshot of Grammar Checker results detected by Copyleaks. It provides detailed data on writing quality, corrections, and readability.

The Grammar Checker object provides a comprehensive analysis of a submitted text, including scores, readability metrics, and detailed corrections.

<ParamField path="score" type="object">
  An object containing the overall score, readability, and text statistics.
      <ScoreWritingFeedback />
</ParamField>
<ParamField path="corrections" type="object">
  An object containing the detailed corrections for the text.
      <CorrectionsWritingFeedbackResponse />
</ParamField>
<ParamField path="scannedDocument" type="object">
  Metadata about the scan.
      <ScannedDocument />
</ParamField>

## Example

```json
{
    "score": {
        "corrections": {
            "grammarCorrectionsCount": 2,
            "grammarCorrectionsScore": 87,
            "grammarScoreWeight": 1.0,
            "mechanicsCorrectionsCount": 9,
            "mechanicsCorrectionsScore": 38,
            "mechanicsScoreWeight": 1.0,
            "sentenceStructureCorrectionsCount": 0,
            "sentenceStructureCorrectionsScore": 100,
            "sentenceStructureScoreWeight": 1.0,
            "wordChoiceCorrectionsCount": 1,
            "wordChoiceCorrectionsScore": 93,
            "wordChoiceScoreWeight": 1.0,
            "overallScore": 79
        },
        "readability": {
            "score": 59,
            "readabilityLevel": 5,
            "readabilityLevelText": "10th to 12th Grader",
            "readabilityLevelDescription": "Fairly difficult to read"
        },
        "statistics": {
            "sentenceCount": 5,
            "averageSentenceLength": 12.2,
            "averageWordLength": 5.5,
            "readingTimeSeconds": 16.0,
            "speakingTimeSeconds": 28.2
        }
    },
    "corrections": {
        "text": {
            "chars": {
                "types": [
                    5,
                    18,
                    3,
                    18,
                    18,
                    18,
                    18,
                    10,
                    18,
                    16,
                    18,
                    18
                ],
                "starts": [
                    13,
                    22,
                    61,
                    104,
                    118,
                    136,
                    179,
                    233,
                    288,
                    347,
                    353,
                    374
                ],
                "lengths": [
                    2,
                    10,
                    9,
                    6,
                    8,
                    35,
                    13,
                    9,
                    12,
                    4,
                    8,
                    11
                ],
                "operationTexts": [
                    "an ",
                    "plagiarism ",
                    "businesses ",
                    "their ",
                    "original.",
                    "texts from the internet and data bases ",
                    "similarities.",
                    "multilingual ",
                    "positives, ",
                    "it's ",
                    "useful ",
                    "maintaining "
                ]
            }
        }
    },
    "scannedDocument": {
        "scanId": "{scanId}",
        "totalWords": 61,
        "totalExcluded": 0,
        "credits": 1,
        "expectedCredits": 1,
        "creationTime": "2025-08-11T06:46:01.2886658Z"
    }
}
```

## Next Steps

<CardGroup cols={2}>
  <Card title="Assess Grammar & Writing Quality" icon="spell-check" href="/guides/writing/check-grammar/">Learn how to use the Grammar Checker API to detect and correct writing issues.</Card>
  <Card title="Correction Types" icon="list-check" href="/reference/actions/writing-assistant/correction-types/">See a detailed list of all supported correction types and languages.</Card>
  <Card title="Export Method" icon="file-export" href="/reference/actions/downloads/export/">Learn how to export scan results, including Grammar Checker data.</Card>
</CardGroup>