Validation & Lookup
Identify any national and international phone number simply by passing it into the API's request URL.
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Numbering Plans
Our format validation system is powered by regularly updated international phone numbering plans.
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256-bit HTTPS
Ensure secure and encrypted datastreams by connecting to the API via industry-standard HTTPS.
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Interactive Documentation
Once signed up, you will be able to try out the API's features as you go through their Documentation.
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World-Class Tech Support
Our technical support team is great at giving you exactly the information that you need, when you need it.
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Extended Usage Statistics
Track your API usage on a daily or monthly basis, and receive automatic notifications if you are running low.
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How are phone numbers validated?
Our phone number format validation system is based on the most up-to-date international numbering plans containing complex syntax rules, carrier data, line type data and location information for all mobile and landline numbers in both national and international formats, for a total of 232 countries around the world. Only this way we are able to ensure the highest level of quality, reliability and accuracy for each validation result returned by the API.
Is the numverify API service secure?
Yes. Since we understand that your API requests contain may sensitive data, we offer paid customers the possibility to access the API and all data provided by and processed through it via industry-standard 256-bit HTTPS encryption. See the API's Documentation for details.
We do not process or store phone numbers for any purpose other than validation. See our Privacy Policy for details.
What is an API request?
Pricing is based on the number of monthly API Requests offered for each individual Subscription Plan. Accessing any type of numverify API data using a valid API Access Key counts as one "API Request".
What happens if I exceed my API Request volume?
Users will be automatically notified via e-mail and on their Account Dashboard once at least 75%, 90%, and 100% of their monthly API Request allowance has been reached. After reaching 100% of the allowance, API access will be disabled.
What is the API's uptime?
The numverify API's system status is being closely monitored around the clock. Since every effort is made to ensure the highest possible level of consistency, we are happy to announce that our API's uptime is at around 99.9%. At the current stage we are not offering any public statistics, but we will be happy to provide you with recent uptime reports - ask us »
What is the difference between Free and Paid Subscriptions?
The Free Plan is set out to be a "trial version" without a time limit, offering a volume of 100 monthly API requests.
Paid Subscription Plans feature significantly higher API request volumes, ensure secure data streams via 256-bit HTTPS Encryption, include unlimited and prioritised technical support, and offer a variety of must-have API functionalities.
Which Subscription Plan fits my needs?
In order to test the API and to get an idea of the product, you can simply sign up for the Free Plan.
As soon as you or your application requires more than 100 API requests per month and more professional API functionality, you would be well-advised to sign up for one of the paid Subscription Plans, starting at only USD 14.99 per month.
Which payment methods are supported?
Payments can be made via Credit Card (Visa, MasterCard, Discover, Diner's Club). You can change your payment method at any given time in the Payment section of your Account Dashboard.
Can I also pay yearly?
Yes. If you choose annual billing, the total price of your subscription plan will be up to 20% lower than the total amount you would pay with a monthly payment frequency.
See all Frequently Asked Questions »
