Providers and connectors

Overview

The Guardline Suite integrates with external providers at two points in the architecture:

• Onboarding Platform (ONP): verification providers invoked during onboarding journeys.
• Guardline Core: external sanctions and PEP lists queried by the whole suite.

Verification providers (ONP)

The ONP uses verification providers to validate customers’ identity and documents during onboarding. Providers are organized by verification category:

Category	Function
Facial biometrics	Biometric capture and comparison
Document verification	Validation of document authenticity
Liveness	Liveness detection
Facematch	Comparison between selfie and document
Device fingerprint	Device identification and reputation
Background check	Registration, restrictive list and court record lookups
OCR	Data extraction and validity verification

The most widely used providers in each category are already pre-integrated into the platform. The institution does not need to engage or configure these providers individually; Guardline manages the technical relationship.

Connector architecture

Each provider is integrated through a standardized connector. The connector architecture defines a uniform interface for all providers, regardless of their technical particularities. This means that replacing or adding a provider does not require changes to the institution’s integration with the ONP.

A connector encapsulates:

• Input: customer data and verification context that the provider needs to receive.
• Output: verification result with score and details returned by the provider.
• Callbacks: mechanism for receiving asynchronous responses from providers that do not respond instantly.
• Configuration: provider-specific credentials and parameters.

The institution can request the creation of connectors for providers that are not yet integrated. The process of integrating a new provider is conducted by the Guardline team.

Fallback mechanism

When a verification fails or the provider is unavailable, the platform applies a fallback mechanism with three levels:

1. Automatic retry: the request is resent to the same provider after a configurable interval.
2. Alternative provider: if the retry fails, the verification is redirected to an equivalent provider pre-configured in the same category.
3. Conditional approval: if no provider responds, the onboarding can be referred to the analysis desk with conditional status, preventing the flow from being blocked by third-party unavailability.

This mechanism ensures that the institution’s operation does not depend on the availability of a single provider.

External lists (Core)

The Guardline Core queries external sanctions and PEP lists as part of compliance checks. These lists are updated in real time and used by the whole suite (ONP, FPP, CMP).

Source	Type
OFAC	International sanctions
UN	International sanctions
European Union	International sanctions
PEP	Politically Exposed Persons
BACEN	National regulatory lists

In addition to public sources, the institution can import and maintain its own lists on the platform (internal lists, partner lists, sector lists).