The API returns a simple boolean output indicating whether a specified phone number is registered on WhatsApp. The response will be either "true" if the number is active on WhatsApp or "false" if it is not.

The response from the API is structured as a JSON object containing a single field that indicates the validation result. For example, a successful query will return `{"isRegistered": true}` or `{"isRegistered": false}`.

The primary parameter for the GET WhatsApp Validation endpoint is the phone number you wish to validate. It should be formatted according to international standards, including the country code.

Common use cases include customer engagement, marketing campaigns, lead generation, and user onboarding. Businesses can ensure they are reaching valid WhatsApp users, optimizing communication efforts and reducing costs.

The API relies on real-time validation against WhatsApp's infrastructure, ensuring that the data returned reflects the current status of the phone number. Regular updates and checks help maintain high accuracy.

The primary field in the response is `isRegistered`. A value of "true" indicates the phone number is active on WhatsApp, while "false" indicates it is not. This clear output allows for straightforward integration into applications.

Users can leverage the boolean output to filter contact lists, ensuring that only valid WhatsApp numbers are targeted for messaging. This enhances communication strategies and improves engagement rates.

The API is designed to validate phone numbers globally, as long as they are formatted correctly with the appropriate country code. This broad coverage makes it suitable for international applications.

Zyla API Hub is like a big store for APIs, where you can find thousands of them all in one place. We also offer dedicated support and real-time monitoring of all APIs. Once you sign up, you can pick and choose which APIs you want to use. Just remember, each API needs its own subscription. But if you subscribe to multiple ones, you'll use the same key for all of them, making things easier for you.

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API calls are deducted from your plan based on successful requests. Each plan comes with a specific number of calls that you can make per month. Only successful calls, indicated by a Status 200 response, will be counted against your total. This ensures that failed or incomplete requests do not impact your monthly quota.

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To check how many API calls you have left for the current month, refer to the 'X-Zyla-API-Calls-Monthly-Remaining' field in the response header. For example, if your plan allows 1,000 requests per month and you've used 100, this field in the response header will indicate 900 remaining calls.

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To give you the opportunity to experience our APIs without any commitment, we offer a 7-day free trial that allows you to make up to 50 API calls at no cost. This trial can be used only once, so we recommend applying it to the API that interests you the most. While most of our APIs offer a free trial, some may not. The trial concludes after 7 days or once you've made 50 requests, whichever occurs first. If you reach the 50 request limit during the trial, you will need to "Start Your Paid Plan" to continue making requests. You can find the "Start Your Paid Plan" button in your profile under Subscription -> Choose the API you are subscribed to -> Pricing tab. Alternatively, if you don't cancel your subscription before the 7th day, your free trial will end, and your plan will automatically be billed, granting you access to all the API calls specified in your plan. Please keep this in mind to avoid unwanted charges.

After 7 days, you will be charged the full amount for the plan you were subscribed to during the trial. Therefore, it's important to cancel before the trial period ends. Refund requests for forgetting to cancel on time are not accepted.

When you subscribe to an API free trial, you can make up to 50 API calls. If you wish to make additional API calls beyond this limit, the API will prompt you to perform an "Start Your Paid Plan." You can find the "Start Your Paid Plan" button in your profile under Subscription -> Choose the API you are subscribed to -> Pricing tab.

Payout Orders are processed between the 20th and the 30th of each month. If you submit your request before the 20th, your payment will be processed within this timeframe.