Verification Methods

Age verification is a critical component of digital compliance, ensuring users meet minimum age requirements for accessing certain content, features, or services. These verification methods are used throughout all the supported flows of the CDK (Compliance Development Kit). k-ID's age verification methods serve two primary purposes: verifying a user's age to determine access to age-appropriate features or content, and verifying that a user is a trusted adult when a digital minor is seeking parental consent.

k-ID provides a comprehensive suite of age verification methods that balance security, user experience, and regulatory compliance. By leveraging multiple verification providers and technologies, k-ID automatically selects the most appropriate verification methods based on jurisdiction requirements and user circumstances.

How k-ID Verification Works

k-ID's age verification system is flexible and intelligent, incorporating various verification techniques automatically selected based on jurisdiction requirements, user demographics, and assurance levels needed. You can configure which verification methods are enabled through the Compliance Studio in the Developer Portal.

The system is privacy-focused—k-ID does not store private data or images from the verification process. It simply confirms whether users meet defined age thresholds (adult or digital youth) according to their jurisdiction's requirements, minimizing data collection while maintaining robust verification capabilities.

Universal Age Verification Methods

These verification methods are available across multiple jurisdictions and provide broad coverage for age verification requirements.

📄 ID Scan Verification

ID scan verification uses advanced document verification technology provided by Veratad to authenticate government-issued identification documents including passports, driver's licenses, and national ID cards.

Users simply photograph their ID document with their device's camera. The system analyzes the document to verify authenticity and extract age information. Enhanced security implementations may also require a face scan to confirm the user's face matches the photo in the ID document.

This method is highly effective because government-issued IDs undergo rigorous verification processes before being issued, making them reliable age sources. The technology detects security features and tampering signs, providing strong fraud protection.

📸 Facial Age Estimation Scan

Facial age estimation provides a user-friendly verification method where users verify their age by scanning their face with their device's camera. This privacy-preserving technology uses artificial intelligence to estimate age categories without storing biometric data.

The process is simple—users look into their camera and the system provides an age estimate within seconds. The technology provides an estimate of a user's age, and it is recommended to use age categories (adult or digital youth) as the criteria, rather than a precise age.

🔑 Age Key

Age Key provides the lowest friction experience for repeat users. After successfully completing any other verification method, users can create an Age Key that serves as a reusable age credential for future verifications. Users can also create an Age Key directly at agekey.org.

Once generated, this secure credential allows users to verify their age in subsequent interactions simply by sharing their Age Key rather than repeating the full verification process. Your Age Key is stored locally on your device and protected by your biometrics (Face ID, fingerprint, or device passcode). This significantly reduces friction while maintaining security and privacy for users who have already been verified once.

💳 Credit Card Verification

Credit card verification provides age verification through Stripe's secure payment processing, particularly in jurisdictions where card ownership is restricted to adults. Users provide credit card information, and a small charge may be made to validate their card is real. If charged, this amount will be refunded within 14 business days.

The system uses Stripe's established payment infrastructure, ensuring financial data is handled with the highest security standards. This method only allows verification using a credit card, as debit cards and pre-paid gift cards are available to younger users.

Testing Credit Card Verification Integration

While your product is in test mode, you may use the provided Stripe testing card numbers to cover all testing scenarios.

Region-Specific Verification Methods

Some age verification methods are tailored to specific jurisdictions, taking advantage of unique digital identity infrastructure and regulatory frameworks in those regions.

🇬🇧 OneID (United Kingdom)

OneID is a UK-specific digital identity verification service that uses bank-verified data and mobile network operator information for age verification. The system allows users to verify their age-over-18 status without uploading documents or revealing their exact age.

The verification process requires users to enter their mobile phone number and complete a one-time password verification. The system then cross-references mobile network operator data to confirm age status. Users authenticate through their existing banking relationships, leveraging the identity verification that banks have already performed.

OneID is FCA-regulated and certified under the UK Government's Digital Identity and Attributes Trust Framework (DIATF). The service is designed to support compliance with the UK's Online Safety Act requirements for age assurance.

🇦🇺 ConnectID (Australia)

ConnectID is Australia's digital identity exchange operated by Australian Payments Plus. The service enables age verification by connecting users with identity providers they already have relationships with, such as their banks.

Users select their preferred identity provider (typically their bank) and authenticate using their existing banking credentials. They then consent to share specific information, such as confirmation that they are over 18, without revealing additional personal details.

ConnectID is accredited by the Australian Government as an identity exchange and operates within Australia's Trusted Digital Identity Framework. The service is supported by major Australian banks and functions as a data bridge without storing personal information.

Testing ConnectID Integration

When your k-ID product is in test mode, ConnectID will present fictional banks for selection during the verification process. To complete mock verifications, you can use any of these test account credentials:

Bank	Username	Password
ABank	dev+user2@connectid.com.au	T3stUs3rs!
Capital	dev+user1@connectid.com.au	T3stUs3rs!
National	dev+user3@connectid.com.au	T3stUs3rs!
WBank	dev+user4@connectid.com.au	T3stUs3rs!

These test accounts allow you to simulate the complete ConnectID verification flow and validate your integration before moving to live mode.

🇺🇸 Social Security Number Verification (United States)

For US users, Social Security Number verification provides robust age verification using government data systems. Users provide the last four digits of their Social Security Number along with their birth date, which is cross-referenced with authoritative government databases to confirm both identity and age.

This method is valuable for users who may not have driver's licenses or photo identification, providing an inclusive verification option that relies on widely-held government-issued credentials.

Testing and Development Considerations

When developing with k-ID's age verification system, it's important to understand the distinction between test and live modes. In test mode, additional testing capabilities are automatically available to help developers validate their implementations. These testing features allow you to simulate various verification scenarios and outcomes without requiring users to complete actual verification processes.

Testing methods are designed to mirror the user experience of live verification while providing controlled outcomes for development purposes. This enables thorough testing of your integration before moving to production. However, these testing capabilities are automatically disabled when your product transitions to live mode, ensuring that only genuine verification methods are available to real users.

The testing environment allows you to validate different verification outcomes, test error handling, and ensure that your application properly processes verification results. This comprehensive testing capability helps ensure smooth deployments and reliable user experiences.

Choosing the Right Verification Methods

k-ID's intelligent system automatically selects appropriate verification methods based on several factors including jurisdiction requirements, user demographics, and the level of assurance required. However, understanding the strengths of each method can help you optimize your age verification strategy.

For maximum coverage and user convenience, implementing multiple verification methods provides the best user experience. Users can choose the method that works best for their circumstances, whether they prefer the convenience of facial scanning, the security of document verification, or the simplicity of leveraging existing digital identity relationships.

The system's automatic selection ensures that users in different jurisdictions see methods that are both legally compliant and technically supported in their regions. For example, users in the UK might see OneID as a primary option, while users in Australia might be offered ConnectID, and users in other regions might see more universal methods like ID scanning or facial age estimation.

Privacy and Security

Throughout all verification methods, k-ID maintains a strong commitment to user privacy and data security. The system is designed to collect only the minimum information necessary to meet age verification requirements. Personal data and images are not permanently stored, and verification results focus on age category determination rather than collecting detailed personal information.

This privacy-preserving approach aligns with global data protection regulations while providing businesses with the assurance they need to meet age verification requirements. By leveraging trusted third-party verification providers and established digital identity infrastructure, k-ID can provide robust verification capabilities without compromising user privacy.

The verification system also includes strong fraud prevention measures, using advanced technologies to detect manipulation attempts and ensure the integrity of the verification process. These security measures help protect both businesses and users from fraudulent activities while maintaining a smooth user experience.

Integration and Implementation

k-ID's age verification methods integrate seamlessly into existing applications and workflows through standardized APIs. The system handles the complexity of managing multiple verification providers and methods, presenting a consistent interface to developers while leveraging the most appropriate verification techniques behind the scenes.

The verification process is designed to be embedded naturally into user journeys, whether as part of account creation, feature activation, or content access. Results are delivered through both webhooks and JavaScript events, allowing applications to respond appropriately to verification outcomes and provide immediate feedback to users.

By understanding these various age verification methods and their appropriate use cases, developers can create more inclusive, secure, and compliant applications that meet the diverse needs of users across different jurisdictions and circumstances.