Credit Card Validator

Key Facts

Category: Validation
Input Types: text
Output Type: text
Sample Coverage: 1
API Ready: Yes

Overview

The Credit Card Validator is a straightforward online tool that verifies credit card numbers using the Luhn algorithm and identifies the card type, such as Visa, MasterCard, or UnionPay, based on the number's prefix.

When to Use

•When you need to check if a credit card number is valid before processing a payment or transaction.
•To identify the card type from a given number for display, routing, or compatibility purposes.
•During data entry or validation to ensure card numbers are correctly formatted and error-free.

How It Works

•Enter the credit card number into the input field, including any spaces or dashes.
•The tool applies the Luhn algorithm to perform a checksum validation on the number.
•It then analyzes the number's prefix to determine the card type (e.g., Visa starts with 4, MasterCard with 5).
•The result displays whether the card is valid and the identified card type.

Use Cases

E-commerce checkout processes to verify card details before payment authorization.

Software development and testing for implementing or debugging card validation logic in applications.

Customer support scenarios to quickly check card information provided by users for accuracy.

Examples

1. Validating a Visa Card for Online Purchase

Online Shopper

Background: You are about to complete an online purchase and want to confirm your Visa card number is correct to avoid payment failures.
Problem: Ensure the entered card number is valid and recognized as a Visa card.
How to Use: Enter your card number, which should start with 4, into the Card Number input field.
Outcome: The tool confirms the card is valid and identifies it as a Visa card, allowing you to proceed with confidence.

2. Identifying Card Type for Payment Integration

Developer

Background: You are building a payment gateway and need to route transactions based on card type to apply specific processing rules.
Problem: Determine the card type from a given number to ensure correct handling in the system.
How to Use: Input the card number into the validator to receive the card type output.
Outcome: The tool outputs the card type, such as MasterCard or American Express, enabling proper transaction routing and integration.

Try with Samples

validation

Credit Card Samples

Valid credit card number samples for various networks (Visa, MasterCard, Amex, etc.) for testing purposes

title token credit,card

sample

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FAQ

What is the Luhn algorithm?

The Luhn algorithm is a simple checksum formula used to validate identification numbers like credit cards by detecting accidental errors.

Which card types does this tool support?

It supports major card types including Visa, MasterCard, American Express, Discover, and UnionPay, based on standard prefixes.

Is my card number stored or transmitted?

No, the tool processes the number locally in your browser and does not store, share, or transmit any data.

What does it mean if a card number is invalid?

An invalid result indicates the number fails the Luhn check, which could be due to a typo, incorrect format, or a non-existent card number.

Can I validate multiple card numbers at once?

Currently, the tool validates one card number per use to ensure accuracy and simplicity; batch processing is not supported.

API Documentation

Request Endpoint

POST /en/api/tools/credit-card-validator

Request Parameters

Parameter Name	Type	Required	Description
cardNumber	text	Yes	-

Response Format

{
  "result": "Processed text content",
  "error": "Error message (optional)",
  "message": "Notification message (optional)",
  "metadata": {
    "key": "value"
  }
}

Text: Text

AI MCP Documentation

Add this tool to your MCP server configuration:

{
  "mcpServers": {
    "elysiatools-credit-card-validator": {
      "name": "credit-card-validator",
      "description": "Validate credit card numbers and identify card type (Visa, MasterCard, UnionPay, etc.)",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=credit-card-validator",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

You can chain multiple tools, e.g.: `https://elysiatools.com/mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp`, max 20 tools.

If you encounter any issues, please contact us at [email protected]

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