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Phone Verification API

Verify and validate phone numbers within seconds

Verify and validate phone numbers through personalised OTP messages, SSN trace, and advanced identity verification solutions. Onboard new users, validate existing ones, and get comprehensive data associated with a phone number and device.

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<5s

API response time

100M+

phone numbers verified

2x

More Fraud Detection

Trusted by industry leaders

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Everyone has a phone, why not use it to build trust?

Phone verification is the easiest way to detect fraudsters and onboard honest users

Verify new users instantly with OTP authentication

Streamline your user onboarding with real-time phone verification. Our 4 or 6 digit one-time password (OTP) system delivers instant verification codes, allowing legitimate users to access your services without delay. Convert and onboard users quickly with instant phone number verification that completes in seconds.

instant OTP verification

Get an additional layer of security for your business

Protect your platform from fraudulent accounts and unauthorized access with robust phone verification. By confirming that real users are behind each account, you create trust in your business operations. This extra security layer helps prevent account takeovers, spam accounts, and potential fraud attempts before they can impact your business.

additional security and authorized acces

Protect against security breaches

Protect yourself from security breaches with our advanced security features. We use advanced encryption, secure server-side storage, and regular security audits to protect your sensitive user data.

maintain high quality phone number database
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Let’s not keep your new users waiting

Validating a new user shouldn’t take more than a few seconds!

Steps:

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Solutions for all your mobile verification needs

Here’s everything you can do for your business with our Phone KYC suite

OTP Verification

OTP Verification enables secure user authentication by validating phone numbers through automated one-time passwords and delivers instant verification codes to confirm successful authentication.

Identity Verification

Signzy’s IDV Lite and IDV Advance APIs use a phone-first approach to validate user-provided personal identifying information (PII) and confirm ownership of their phone number using authoritative data like device and phone number tenure data.

Phone number Verification

The Phone Number Intelligence API provides a detailed analysis of each identifier's risk level with the single input of phone number, and also generates a risk score, indicating the potential risk associated with the current transaction.

SSN Trace API

Social Security Trace fetches the name and address history of a user and also confirms whether the Social Security number is valid and matches the candidate’s name and address history.

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1 phone number — endless use cases

Signzy’s Phone Validation API has a wide range of use cases across domains

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New User Onboarding

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Legal Compliance

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2-Factor Authentication

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Transaction Validation

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Customer Support

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Account Recovery

one phone number endless use cases
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Strengthen your security with end-to-end verification solutions

Your business is unstoppable - so why should we stop at OTP verification?

Email Verification

Verify user identities by capturing only verified email addresses. Get details if an email ID is non-existent, inactive, disposable, or mistyped. Also extract personal details of the user and company information.

Domain Verification

Verify a domain and ensure business legitimacy and status. Extract essential information like legal name, founding year, location, contact details, business operations, etc.

Developers love us for a reason!

Integrate the API during lunch hour, customize based on your needs, and go live within 2-4 weeks!

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FAQ

What are the use cases of phone verification?

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What are the benefits of using the Phone Verification API?

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Is the API compliant with global data protection regulations?

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How does the API help in reducing fraud?

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What is the typical response time for the Phone Check API?

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Does the API handle international phone numbers?

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How can I get support if I encounter issues with the API?

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