Validex API

Validex API provides fast and reliable validation for emails, phone numbers, and IBANs — all in one lightweight service. Perfect for developers who want to integrate secure data validation without complexity. Save time, reduce errors, and keep your applications clean with a single API.

🛡️ Validex API is a lightweight and reliable service for data validation. With a single integration, you can verify emails, phone numbers, and IBANs in real time. This API helps developers and businesses reduce errors, prevent fraud, and keep their applications clean with accurate user input.

Key features include:

➜ Email Validation: check if an email address is properly formatted and normalized.

➜ Phone Validation: verify international phone numbers with country detection and E.164 format.

➜ IBAN Validation: confirm the validity of IBANs, including country code and length checks.

🔒 Validex API is designed for developers who want a simple, secure, and fast solution to integrate into forms, onboarding flows, CRMs, fintech apps, and more. Whether you need to validate customer data, improve user experience, or ensure compliance with financial standards, Validex provides the right tools.

By publishing on RapidAPI, you also benefit from:

➜ Built-in authentication and quota management

➜ Usage analytics and monitoring

➜ Easy integration with SDKs and client libraries in multiple programming languages

Start using Validex API today to save time, reduce errors, and scale with confidence.

API Documentation

Endpoints


This endpoint checks the availability and health status of the Validex API.
It returns a simple response indicating whether the API is running properly.



                                                                            
GET https://www.zylalabs.com/api/10572/validex+api/20131/health+check
                                                                            
                                                                        

Test Endpoint

API EXAMPLE RESPONSE

       
                                                                                                        
                                                                                                                                                                                                                            {"status":"ok"}
                                                                                                                                                                                                                    
                                                                                                    

Health check - CODE SNIPPETS


curl --location --request GET 'https://zylalabs.com/api/10572/validex+api/20131/health+check' --header 'Authorization: Bearer YOUR_API_KEY' 


    

Validates an International Bank Account Number (IBAN) and returns whether it is valid or not.
The response includes information such as IBAN format validity, country code, and length checks.



                                                                            
POST https://www.zylalabs.com/api/10572/validex+api/20132/validate+iban
                                                                            
                                                                        

Validate IBAN - Endpoint Features

Object Description
Request Body [Required] Json
Test Endpoint

API EXAMPLE RESPONSE

       
                                                                                                        
                                                                                                                                                                                                                            {"valid":true,"country":"ES","length":24,"message":"IBAN is valid."}
                                                                                                                                                                                                                    
                                                                                                    

Validate IBAN - CODE SNIPPETS


curl --location --request POST 'https://zylalabs.com/api/10572/validex+api/20132/validate+iban' --header 'Authorization: Bearer YOUR_API_KEY' 

--data-raw '{
  "iban": "ES9121000418450200051332"
}'

    

This endpoint validates whether the provided email address is correctly formatted. If valid, it returns the normalized version of the email and a confirmation message. If invalid, it returns an error with details.



                                                                            
POST https://www.zylalabs.com/api/10572/validex+api/20133/validate+email
                                                                            
                                                                        

Validate email - Endpoint Features

Object Description
Request Body [Required] Json
Test Endpoint

API EXAMPLE RESPONSE

       
                                                                                                        
                                                                                                                                                                                                                            {"valid":true,"normalized":"[email protected]","message":"The email is valid."}
                                                                                                                                                                                                                    
                                                                                                    

Validate email - CODE SNIPPETS


curl --location --request POST 'https://zylalabs.com/api/10572/validex+api/20133/validate+email' --header 'Authorization: Bearer YOUR_API_KEY' 

--data-raw '{
  "email": "[email protected]"
}'

    

This endpoint validates whether a phone number is properly formatted and valid. If the number is valid, it returns the normalized version in E.164 format, the detected region (country code), and a confirmation message. If invalid, it returns an error response.



                                                                            
POST https://www.zylalabs.com/api/10572/validex+api/20134/validate+phone+number
                                                                            
                                                                        

Validate Phone Number - Endpoint Features

Object Description
Request Body [Required] Json
Test Endpoint

API EXAMPLE RESPONSE

       
                                                                                                        
                                                                                                                                                                                                                            {"valid":true,"e164":"+14155552671","region":"US","message":"Phone number is valid."}
                                                                                                                                                                                                                    
                                                                                                    

Validate Phone Number - CODE SNIPPETS


curl --location --request POST 'https://zylalabs.com/api/10572/validex+api/20134/validate+phone+number' --header 'Authorization: Bearer YOUR_API_KEY' 

--data-raw '{
  "phone": "+14155552671"
}'

    

API Access Key & Authentication

After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the Validex API simply include your bearer token in the Authorization header.
Headers
Header Description
Authorization [Required] Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.

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Validex API FAQs

Each endpoint returns validation results specific to the data type. The Email Validation endpoint returns whether the email is valid and its normalized form. The Phone Validation endpoint provides the validity status, normalized E.164 format, and detected region. The IBAN Validation endpoint indicates if the IBAN is valid, along with its country code and length checks.

Key fields include "valid" (boolean indicating validity), "normalized" (formatted version of the input), "region" (for phone numbers), "country" (for IBANs), "length" (for IBANs), and "message" (providing additional context about the validation result).

Each endpoint accepts a single parameter: the data to be validated. For Email Validation, provide an email address; for Phone Validation, provide a phone number; and for IBAN Validation, provide the IBAN. Ensure the input is in the correct format for accurate validation.

The response data is structured as a JSON object. It includes key-value pairs where each key corresponds to a specific aspect of the validation result, such as "valid," "normalized," "region," "country," and "message," making it easy to parse and utilize programmatically.

The Validex API utilizes a combination of reliable databases and validation algorithms to ensure data accuracy. The API continuously updates its validation methods to maintain high-quality standards and adapt to changes in data formats and regulations.

Typical use cases include validating user input during registration forms, ensuring accurate contact information in CRMs, and verifying financial data in fintech applications. This helps reduce errors, prevent fraud, and enhance user experience.

Users can leverage the returned data to enhance application functionality. For instance, normalized email addresses can be stored for consistency, while validated phone numbers can improve communication efforts. The validity status can also trigger alerts for invalid entries.

If a validation request returns an invalid result, users should implement error handling to prompt users for corrections. For empty results, ensure that input data is not null or improperly formatted before making requests to avoid unnecessary API calls.

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