Nexo Suite & ISO 20022 Platform
A modular payment processing framework built on ISO 20022–aligned messaging standards, enabling standardized communication between terminals, retailer systems, and acquirer hosts.
Platform Architecture Overview
We provide a modular Nexo-based platform that connects terminals and hosts through standardized message flows and synchronized configuration management.
Nexo FAST Transaction Engine
HAP Host Acquirer Protocol
TMAP Terminal Management
SCAP Retailer Protocol
POI Terminal LayerApplication Layer
Transaction Engine
Host Communication
Terminal Management
End-to-End Platform Architecture
From retailer system interaction to acquirer authorization
Retail Systems & ECR Platforms
Retail applications send basket data, payment commands, and transaction requests to the terminal.
Nexo FAST Transaction Engine
Handles card processing, kernel execution, PIN or CVM selection, cryptographic validation, and scheme compliance.
Host Communication Layer (HAP)
Builds Nexo messages, manages authorization routing, clearing messages, settlement instructions, and session control.
Terminal Management & Retail Integration
TMAP synchronizes terminal parameters and software updates while SCAP manages retailer communication and payment confirmation flows.
Core Technical Capabilities
Key modules powering the Nexo Suite platform
Nexo FAST Transaction Engine
Processes card transactions including kernel execution, PIN/CVM selection, data authentication, risk evaluation, and cryptographic validation.
Security & Encryption Framework
Protects sensitive data, manages certificates and session keys, and ensures secure storage of cryptographic payloads.
Terminal Parameter Manager
Synchronizes AID tables, risk parameters, CVM profiles, and acquirer settings across terminal fleets.
Certification & Compliance Manager
Ensures scheme-compliant processing aligned with Nexo certification requirements.
HAP (Host Acquirer Protocol)
Manages Nexo message construction, authorization routing, clearing instructions, settlement messaging, and session control.
TMAP (Terminal Management Application Protocol)
Handles parameter updates, software deployment, certificate rotation, and terminal health monitoring.
Extended Platform Capabilities
Enabling standardized payment ecosystems
Retail Basket Sync
Authorization Routing
Terminal Config Management
Retailer Protocol Integration
Compliance Alignment
Multi-Vendor Support
Who Integrates With the Platform
Key stakeholders using Nexo-based payment infrastructure
Acquiring Processors
Migrating to ISO 20022–based payment messaging ecosystems.
Terminal Manufacturers
Enabling interoperability across multiple terminal families.
Retail Integrators
Synchronizing basket exchange and checkout workflows.
Payment Service Providers
Managing multi-vendor and multi-acquirer networks.
Platform Facts
Key characteristics of the Nexo Suite platform.
ISO 20022 Messaging
Implements standardized Nexo message objects for interoperability.
Modular Architecture
Includes FAST, HAP, SCAP, and TMAP modules for full lifecycle control.
Scheme-Compliant
Supports kernel execution, CVM flows, and risk evaluation.
Retailer Integration
Enables basket-level data exchange and tax synchronization.
Lifecycle Management
Supports remote software deployment and certificate rotation.
Partner With Us
Customer Trust Built on Global Reach and Consistent Reliability
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