Grammar Check API

Grammar Check is a grammar checker and spell check API that inspects text for spelling and grammar errors, returning the corrected wording, error count, and a modified flag. Paid plans add detailed rule descriptions, character offsets, and suggestions for every detected mistake.

The Grammar Check API provides a simple, reliable way to integrate grammar check functionality into your applications. Built for developers who need production-ready grammar check capabilities without the complexity of building from scratch.

View API Details →

Available on:

async function callGrammarCheckAPI() {
    try {
        const requestBody = {
    "text": "The the pig snorted when I saw it on the barn gate. I was a little mad becuase it woke up my pupppppy"
};

        const response = await fetch('https://api.apiverve.com/v1/grammarcheck', {
            method: 'POST',
            headers: {
                'x-api-key': 'YOUR_API_KEY_HERE',
                'Content-Type': 'application/json'
            },
            body: JSON.stringify(requestBody)
        });

        const data = await response.json();
        console.log(data);
    } catch (error) {
        console.error('Error:', error);
    }
}

callGrammarCheckAPI();

curl -X POST "https://api.apiverve.com/v1/grammarcheck" \
  -H "x-api-key: YOUR_API_KEY_HERE" \
  -H "Content-Type: application/json" \
  -d '{
    "text": "The the pig snorted when I saw it on the barn gate. I was a little mad becuase it woke up my pupppppy"
}'

Get your API key: https://apiverve.com

📁 For more examples, see the examples folder

Choose your preferred programming language:

npm install @apiverve/grammarcheck

View NPM Package → | Package Code →

dotnet add package APIVerve.API.GrammarCheck

View NuGet Package → | Package Code →

pip install apiverve-grammarcheck

View PyPI Package → | Package Code →

gem install apiverve_grammarcheck

View RubyGems Package → | Package Code →

composer require apiverve/grammarcheck

View Packagist Package → | Package Code →

dart pub add apiverve_grammarcheck

View pub.dev Package → | Package Code →

implementation 'com.github.apiverve:grammarcheck-api:1.0.0'

Package Code →

go get github.com/apiverve/grammarcheck-api/go

Package Code →

• 🏠 API Home: Grammar Check API
• 📚 API Reference: docs.apiverve.com/ref/grammarcheck
• 📖 OpenAPI Spec: openapi.yaml
• 💡 Examples: examples/

The Grammar Check API is commonly used for:

• Web Applications - Add grammar check features to your frontend or backend
• Mobile Apps - Native SDKs for Android development
• Automation - Integrate with n8n, Zapier, or custom workflows
• SaaS Products - Enhance your product with grammar check capabilities
• Data Pipelines - Process and analyze data at scale

All requests require an API key in the header:

x-api-key: YOUR_API_KEY_HERE

Get your API key: https://apiverve.com

Every APIVerve endpoint returns the same envelope — check status, then read data:

{
  "status": "ok",
  "error": null,
  "data": { ... }
}

A real response from the Grammar Check API:

{
  "status": "ok",
  "error": null,
  "data": {
    "modified": true,
    "corrected": "The pig snorted when I saw it on the barn gate. I was a little mad because it woke up my puppy",
    "errorCount": 3,
    "corrections": [
      {
        "rule": "repeated_word",
        "message": "Did you mean to repeat the word \"The\"?",
        "position": {
          "start": 0,
          "end": 7
        },
        "suggestions": [
          "The"
        ]
      },
      {
        "rule": "spelling",
        "message": "Did you mean \"because\"?",
        "position": {
          "start": 67,
          "end": 74
        },
        "suggestions": [
          "because"
        ]
      },
      {
        "rule": "spelling",
        "message": "Did you mean \"puppy\"?",
        "position": {
          "start": 92,
          "end": 101
        },
        "suggestions": [
          "puppy"
        ]
      }
    ]
  }
}

• 🏠 API Home: Grammar Check API
• 💬 Support: https://apiverve.com/contact
• 🐛 Issues: GitHub Issues
• 📖 Documentation: https://docs.apiverve.com
• 🌐 Website: https://apiverve.com

We welcome contributions! Please see CONTRIBUTING.md for guidelines.

For security concerns, please review our Security Policy.

This project is licensed under the MIT License - see the LICENSE file for details.

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