NEXUS - Data validation
Know Your Customer
With our worldwide Know Your Customer (KYC) check, you verify customer identities in real time, ensuring compliance and reducing the risk of fraud. Superfast and at low cost.
GDPR-compliant and ISO-certified
Our data check provides you with transparent and traceable data that complies with privacy legislation.
We are ISO 27001 certified.
One API connection to validate consumers worldwide
With an up-to-date customer database, you can work faster and won’t subsequently have to correct any mistakes arising from miscommunication.
NEXUS - Data validation
Customer data can quickly become unreliable due to duplicate registrations, incorrect data entry, or outdated information. This process starts the moment a customer is added to your database and continues over time as people move, change names, or even pass away. Within a year, up to 20% of your customer records may become inaccurate—creating opportunities for fraud and inefficiencies.
NEXUS ensures real-time validation at critical moments, such as during a purchase process on your website, preventing errors before they affect your operations. Additionally, our system performs batch validation to maintain data integrity over time. With NEXUS, you always have up-to-date customer information, reduce risk, and stay one step ahead of fraudsters.

NEXUS by Hummingbird
NEXUS ensures maximum data coverage per country by working with the most comprehensive datasets available. Validation takes place seamlessly in the background, requiring no additional actions from the user. Real-time checks instantly detect and correct inaccurate or incomplete data without the consumer even noticing. Moreover, our direct connections to data sources enable fast processing and cost-efficient validation.
Validating data.
How we do it
NEXUS by Hummingbird provides a seamless, one-stop solution for global data validation through a single API connection. With direct access to trusted data sources, we ensure accurate and compliant customer information wherever you operate.
By integrating your customer database with NEXUS, our API dynamically connects to the most reliable data sources in each country, guaranteeing the highest possible coverage and validation accuracy.
- One API connection to validate consumers worldwide
- High coverage and matching rate
- Superfast validation (average response time less than 200ms)
- Lower prices
- Well-documented API - Easy to implement
Step 1
In order to validate, you compare the consumer’s details to the data source live, via our API. This lets you check fields such as the name, address, telephone number, email address, date of birth, initials and gender code.
Step 2
We compare the validation data provided against reliable and GDPR-proof data sources worldwide. You receive immediate feedback on whether these details match.
Step 3
Is everything correct? If so, the consumer data can be used for its validation purpose: for example, an online customer acceptance process in which the consumer wants to buy a product and pay afterwards using Afterpay.
Do you want to know your customers? Download our NEXUS product paper
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Customer acceptance
To minimise business risks such as fraud, it is important to know your customers. You can do so by using our customer acceptance flow. As each person goes through this flow and fills in their details, you can be sure that they are legitimate because we are simultaneously checking their input.

Community model
Our Community model compares customer data from different companies. By indirectly connecting with other companies’ data sources, you get an extra check on your own customer data. This keeps your customer database up to date and allows you to respond to any changes.

Technology
Our technology is developed and managed in-house, allowing us to make optimisations quickly. Clients can connect their data via a single API connection. We work with cloud servers from reliable partners, and guarantee your data security.