Top Valid Phone Checker API Alternatives in 2025
As the demand for reliable phone verification solutions continues to grow, developers are increasingly seeking alternatives to traditional APIs. In this blog post, we will explore some of the best alternatives to the WhatsApp Number Checker API, which allows users to verify if a phone number is registered on WhatsApp. We will delve into the features, capabilities, pricing, pros and cons, ideal use cases, and how each alternative differs from WhatsApp Number Checker API. This comprehensive guide will help you make an informed decision based on your specific needs.
1. WhatsApp Number Checker API
The WhatsApp Number Checker API is a powerful tool that enables developers to verify if a given phone number is registered on the WhatsApp messaging platform. By simply providing the number, including the country code, the API returns a response indicating whether the number is active on WhatsApp or not. This API is particularly useful for businesses looking to engage with customers through WhatsApp, ensuring that they reach their intended audience.
Key Features and Capabilities
The WhatsApp Number Checker API offers several key features:
- Number Checker: This feature allows users to insert a phone number with the country code (without the + sign) to check if it is registered on WhatsApp. For example, the API request format would be:
https://zylalabs.com/api/926/whatsapp+number+checker+api/743/number+checker?number=required. The response will indicate whether the number is active on WhatsApp.
Example Response:
{"balance":43332,"status":true,"numberstatus":false,"businessnumber":false}This response provides valuable information, including the balance of API calls, the status of the request, whether the number is registered, and if it belongs to a business account.
Ideal Use Cases
Businesses can utilize the WhatsApp Number Checker API to validate contact lists, enhance customer engagement strategies, and ensure accurate communication by identifying active WhatsApp users.
Ready to test the WhatsApp Number Checker API? Try the API playground to experiment with requests.
2. IMEI Checker API
The IMEI Checker API allows users to check the status of a mobile device by entering its IMEI (International Mobile Equipment Identity) number. This API returns information such as the device's model, brand, and country of origin, making it a valuable tool for individuals and businesses involved in buying and selling used mobile devices.
Key Features and Capabilities
The IMEI Checker API includes the following features:
- IMEI Checker: Users can insert the IMEI code to look up and receive its model and brand. This feature is essential for verifying the authenticity of a device before purchase.
- IMEI Validator: This feature requires users to indicate an IMEI in the parameter to validate its authenticity.
Example Response:
{ "imei": "359761979807157", "model": { "brand": "APPLE", "device": "iPhone 14 Pro Max", "system": "iOS17", "device_type": "Smartphone" }, "valid": true}This response provides detailed information about the device, including its brand, model, and validity status.
Ideal Use Cases
The IMEI Checker API is ideal for businesses that buy and sell used mobile devices, as it helps verify the authenticity of devices and check for potential issues before making a purchase.
Ready to test the IMEI Checker API? Try the API playground to experiment with requests.
3. Visa Checker API
The Visa Checker API revolutionizes the way travelers plan their international trips by providing up-to-date and accurate information on visa requirements for various destinations around the world. This API seamlessly integrates with travel platforms and applications, ensuring users are well-informed about the visa requirements of their intended destination.
Key Features and Capabilities
The Visa Checker API offers several key features:
- Get Visa Countries: This feature allows users to run the endpoint and receive an aggregation of all available countries for visa requirements.
- Get Status: Users can run this endpoint to get all the different visa statuses that can be obtained, such as visa-free, visa-on-arrival, e-visa, and visa-required.
- Get Requirement: This feature requires users to indicate a country code in the passport and destination parameters to obtain specific visa requirements.
Example Response:
{"countries":[{"iso2":"AD"},{"iso2":"AE"},{"iso2":"AF"}]}This response provides a list of countries available for visa requirements, allowing users to plan their travels effectively.
Ideal Use Cases
The Visa Checker API is ideal for travel agencies, booking platforms, and individuals planning international trips, as it streamlines the visa search process and saves valuable time.
Ready to test the Visa Checker API? Try the API playground to experiment with requests.
4. Phone Number Validator API
The Phone Number Validator API allows users to check the validity of phone numbers and obtain additional information about their origin. This API is particularly useful for businesses looking to validate contact lists and ensure that their communications reach the intended recipients.
Key Features and Capabilities
The Phone Number Validator API includes the following features:
- Verification: This feature allows users to check the phone number's validity and obtain additional information, such as the country, city, and carrier company.
Example Response:
{"nums":[{"isValid":true,"countryCode":"49","city":"Germany","msisdn":"4915123577723","national":"01512 3577723","international":"+49 1512 3577723","E164":"+4915123577723","carrier":"T-Mobile","country":"Germany","number_type":"MOBILE"}],"state":{"state":"done"}}This response provides comprehensive details about the phone number, including its validity, geographical context, and carrier information.
Ideal Use Cases
The Phone Number Validator API is ideal for businesses conducting SMS campaigns, as it helps ensure that the numbers on their database are valid and reachable.
Looking to optimize your Phone Number Validator API integration? Read our technical guides for implementation tips.
5. Text Spam Checker API
The Text Spam Checker API is designed to help users identify and eliminate spam messages in real-time. By utilizing advanced algorithms and machine learning models, this API classifies messages based on their content and characteristics, providing a reliable solution for spam detection.
Key Features and Capabilities
The Text Spam Checker API includes the following features:
- Spam Checker: Users must enter a text, an email, and an IP to detect if it is spam. This feature is essential for maintaining clean communication channels.
Example Response:
{"message": "Response is not available at the moment. Please check the API page"}This response indicates the status of the spam detection process, allowing users to take appropriate action based on the results.
Ideal Use Cases
The Text Spam Checker API is ideal for businesses and individuals looking to enhance their communication security by filtering out unwanted messages across various platforms.
Need help implementing the Text Spam Checker API? View the integration guide for step-by-step instructions.
6. Routing Bank Number Checker API
The Routing Bank Number Checker API allows developers to validate bank routing numbers, ensuring that they are correct and belong to legitimate banks. This API is particularly useful for financial institutions and businesses handling transactions.
Key Features and Capabilities
The Routing Bank Number Checker API includes the following features:
- Routing Number Lookup: This feature returns information about a bank by passing in the routing number, helping users confirm the legitimacy of the bank for transaction purposes.
Example Response:
{"status":200,"success":true,"message":"Routing Bank 053100465 is valid","data":{"routing_number":"053100465","date_of_revision":"080714","new_routing_number":null,"bank":"SUNTRUST","address":"FL-ORL-7150","city":"ORLANDO","state":"FL","zip":"32809","phone":"(800) 221-9792"}}This response provides detailed information about the bank associated with the routing number, including its name, address, and contact details.
Ideal Use Cases
The Routing Bank Number Checker API is ideal for businesses and financial institutions that need to validate routing numbers to prevent errors and fraud in transactions.
Ready to test the Routing Bank Number Checker API? Try the API playground to experiment with requests.
7. Lite Phishing Checker API
The Lite Phishing Checker API is a powerful tool that allows users to check URLs and determine if they are known phishing attempts. This API is essential for organizations looking to enhance their security measures against phishing attacks.
Key Features and Capabilities
The Lite Phishing Checker API includes the following features:
- Scan URL: This feature checks if a URL is a known phishing attempt, helping users safeguard against potential threats.
Example Response:
{"status":200,"data":{"isScam":false,"domain":"metals-api.com","detection":{"type":"domain"}}}This response indicates whether the URL is considered a scam and provides additional information about the domain.
Ideal Use Cases
The Lite Phishing Checker API is ideal for web security applications, email security systems, and incident response tools, helping organizations protect against phishing threats.
Looking to optimize your Lite Phishing Checker API integration? Read our technical guides for implementation tips.
8. Email Checker API
The Email Checker API helps verify the validity of email addresses. By sending an email ID as input, the API returns a JSON response indicating whether the email address is valid, invalid, or disposable.
Key Features and Capabilities
The Email Checker API includes the following features:
- Email Validation: Users must enter an email address in the parameter to check its validity. This feature is crucial for preventing spam and improving email deliverability.
Example Response:
{"email":"[email protected]","valid":true,"domain":"gmail.com","disposable":false,"mxRecord":true}This response provides detailed information about the email address, including its validity, domain, and whether it is disposable.
Ideal Use Cases
The Email Checker API is ideal for email list cleaning, fraud prevention, and ensuring compliance with regulations like GDPR.
Want to use the Email Checker API in production? Visit the developer docs for complete API reference.
9. Symptoms Checker API
The Symptoms Checker API enables users to input a string of symptoms and receive a list of possible causes. This API is designed to assist medical professionals and patients in identifying potential illnesses and determining the appropriate course of action.
Key Features and Capabilities
The Symptoms Checker API includes the following features:
- Symptom Analysis: This feature takes a string of symptoms in the request and returns a list of potential causes along with follow-up questions to narrow down the diagnosis.
Example Response:
["Possible causes for a red rash on your forearm that appeared suddenly without itching or pain include contact dermatitis, heat rash, or a mild allergic reaction. To narrow down the cause, can you recall any new skincare products or materials you came in contact with recently?"]This response provides valuable insights into potential medical conditions based on the symptoms provided.
Ideal Use Cases
The Symptoms Checker API is ideal for remote patient triage, diagnosis support for healthcare professionals, and educational tools for medical training.
Want to use the Symptoms Checker API in production? Visit the developer docs for complete API reference.
10. SSL Certificate Checker API
The SSL Certificate Checker API allows users to verify and validate any SSL certificate present on a website. This API provides extensive information about the host and the validity of the SSL certificate.
Key Features and Capabilities
The SSL Certificate Checker API includes the following features:
- Check: This feature checks the validity of an SSL certificate and returns certificate information, helping users ensure safe browsing experiences.
Example Response:
{"subject":{"jurisdictionC":"US","jurisdictionST":"Delaware","businessCategory":"Private Organization","serialNumber":"3014267","C":"US","ST":"California","L":"San Jose","O":"PayPal, Inc.","CN":"www.paypal.com"},"issuer":{"C":"US","O":"DigiCert Inc","OU":"www.digicert.com","CN":"DigiCert SHA2 Extended Validation Server CA"},"validFrom":"2024-06-13T00:00:00.000Z","validTo":"2025-06-12T23:59:59.000Z","expiresInDays":215,"fingerprint":"B8:52:A5:56:6A:3C:F4:6B:0F:90:23:FA:3E:26:C8:8B:BA:55:D3:C9","fingerprint256":"BA:3F:8D:7F:72:A6:A3:5A:6E:BF:15:31:D0:79:1B:43:DA:2C:6D:0F:56:72:19:44:64:E9:40:62:7A:C7:8B:62","serialNumber":"0F689F7274A957992808A5B060F2E4E8","pem":"-----BEGIN CERTIFICATE-----\nMIIR6DCCENCgAwIBAgIQD2ifcnSpV5koCKWwYPLk6DANBgkqhkiG9w0BAQsFADB1\nMQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3\nd3cuZGlnaWNlcnQuY29tMTQwMgYDVQQDEytEaWdpQ2VydCBTSEEyIEV4dGVuZGVk\nIFZhbGlkYXRpb24gU2VydmVyIENBMB4XDTI0MDYxMzAwMDAwMFoXDTI1MDYxMjIz\nNTk1OVowgcYxEzARBgsrBgEEAYI3PAIBAxMCV...This response provides comprehensive details about the SSL certificate, including its validity period, issuer information, and fingerprint.
Ideal Use Cases
The SSL Certificate Checker API is ideal for security audits, compliance checks, and monitoring SSL certificate validity for websites to ensure safe browsing experiences for users.
Want to try the SSL Certificate Checker API? Check out the API documentation to get started.
Conclusion
In conclusion, the alternatives to the WhatsApp Number Checker API offer a range of features and capabilities that cater to various needs. Whether you are looking to validate phone numbers, check IMEI statuses, verify visa requirements, or enhance security against spam and phishing threats, there is an API that fits your requirements. Each API discussed provides unique functionalities that can be integrated into applications to improve user engagement, security, and operational efficiency. Depending on your specific use case, you can choose the API that best aligns with your goals and technical requirements.
