Trustfull Developer Hub

Everything you need to start building with Trustfull: clear guides, detailed docs and helpful recipes to support you every step of the way.

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Validate phone numbers with over 220 mobile networks worldwide. Check phone status, carrier, porting history, and identity signals without adding user friction.

Connect our API to verify customer emails directly at the point of entry. Add Trustfull Email to your lead pages, registration forms or wherever you collect emails.

Use Trustfull IP geolocation and proxy detection for a wide range of applications including marketing optimisation, compliance and fraud detection.

One API to perform deep online due diligence on any web domain globally, analyzing the website’s technical attributes, social media presence and marketplace activity.

Combine Phone, Email and IP checks in one risk scoring solution to supercharge your apps with alternative data and score your users with ready-to-use ML models.

Silent and fully auditable analysis of device, browser, behavior and network signals to protect your site and APIs from malicious bots and bad human actors.

Protect users' login attempts with a powerful authentication API that combines behavioral biometrics and accurate device fingerprinting for maximum security.

Detect whether a phone number is associated with a temporary or disposable phone service provider to prevent fraud and validate contact details.

Guides

A high-level overview of the Trustfull API to help you plan your integration.

API Reference

The ultimate Trustfull API tech guide, covering every endpoint, parameter and response code.

Recipes

Our library of step-by-step tutorials to help you get started with the Trustfull API.

What is the Trustfull API and how do I get started?

Trustfull provides a suite of APIs that let you collect digital signals, assess risk, and prevent fraud. To begin, visit the Introduction section in the Guides, where you’ll find everything you need to set up your credentials, make your first request, and explore the available APIs.

Which types of signals are analyzed by Trustfull?

Trustfull analyzes a wide range of digital signals related to users’ phone numbers, email addresses, IP addresses, behavior, browser configurations and device characteristics. For a full list of available signals and their technical specifications, please refer to the API reference section.

What types of fraud can I mitigate with Trustfull?

By integrating Trustfull within your solution, you can detect multiple forms of digital fraud, including synthetic identity fraud, money muling, bonus/promo abuse, account takeovers, and bot activity.

How does Trustfull handle data privacy and compliance (e.g. GDPR)?

Trustfull follows strict data protection standards, encrypting data in transit and at rest. We comply with GDPR and other regional regulations, ensuring personal data is processed lawfully, stored securely, and used only for authorized purposes. We are also certified to ISO 27001.

Where can I find SDKs, code samples, and integration examples?

Trustfull provides official SDKs, code samples, and integration guides in the Guides and API Reference sections of the documentation.

Where can I get technical support?

If you can’t find the answers to your question in our documentation, click Ask AI in the dashboard header and ask your question. The assistant answers most requests immediately, and it opens a ticket for you when the request needs a person. See Getting Support.

Changelog

See what’s new, improved, and fixed within the Trustfull API & product offering. All changes are listed in reverse chronological order with clear notes on features, enhancements, and bug fixes.

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API status

Stay informed about the operational status of the entire Trustfull suite. Get transparent, real-time updates on system uptime, API response times, and past incident reports.

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Interested in receiving regular updates about the Trustfull suite of products? Add us to your favorite RSS reader for timely updates on new releases, bug fixes and upcoming deprecations.

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