Card Validator API

Card Validator checks whether a card number is valid, identifies the card brand, and flags risk. It runs the Luhn checksum, detects the scheme (Visa, Mastercard, Amex and more), returns the PCI-safe BIN and last 4 digits, flags known processor test cards, and returns a composite risk score.

The Card Validator API provides a simple, reliable way to integrate card validator functionality into your applications. Built for developers who need production-ready card validator capabilities without the complexity of building from scratch.

View API Details →

Available on:

async function callCardValidatorAPI() {
    try {
        const params = new URLSearchParams({
            number: '4900264223817524'
        });

        const response = await fetch(`https://api.apiverve.com/v1/cardvalidator?${params}`, {
            method: 'GET',
            headers: {
                'x-api-key': 'YOUR_API_KEY_HERE'
            }
        });

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

callCardValidatorAPI();

curl -X GET "https://api.apiverve.com/v1/cardvalidator?number=4900264223817524" \
  -H "x-api-key: YOUR_API_KEY_HERE"

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

📁 For more examples, see the examples folder

Choose your preferred programming language:

npm install @apiverve/cardvalidator

View NPM Package → | Package Code →

dotnet add package APIVerve.API.CardValidator

View NuGet Package → | Package Code →

pip install apiverve-cardvalidator

View PyPI Package → | Package Code →

gem install apiverve_cardvalidator

View RubyGems Package → | Package Code →

composer require apiverve/cardvalidator

View Packagist Package → | Package Code →

dart pub add apiverve_cardvalidator

View pub.dev Package → | Package Code →

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

Package Code →

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

Package Code →

• 🏠 API Home: Card Validator API
• 📚 API Reference: docs.apiverve.com/ref/cardvalidator
• 📖 OpenAPI Spec: openapi.yaml
• 💡 Examples: examples/

The Card Validator API is commonly used for:

• Web Applications - Add card validator 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 card validator 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 Card Validator API:

{
  "status": "ok",
  "error": null,
  "data": {
    "card": {
      "niceType": "Visa",
      "type": "visa",
      "patterns": [
        4
      ],
      "gaps": [
        4,
        8,
        12
      ],
      "lengths": [
        16,
        18,
        19
      ],
      "code": {
        "name": "CVV",
        "size": 3
      },
      "matchStrength": 1
    },
    "brand": "Visa",
    "cardNumber": "4900264223817524",
    "bin": "490026",
    "last4": "7524",
    "isValid": true,
    "isPotentiallyValid": true,
    "isTestCard": false,
    "riskScore": 0,
    "riskLevel": "low"
  }
}

• 🏠 API Home: Card Validator 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.

Built with ❤️ by APIVerve

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