FluxiQ PIXInstant Payment Platform

A high-performance PIX processing platform built with Elixir/Phoenix and Vue 3 for the Brazilian instant payment ecosystem.

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Architecture

API Reference

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DICT Service

Full PIX key directory management compliant with BACEN DICT API v2.10.0. Supports CPF, CNPJ, PHONE, EMAIL, and EVP key types with claim resolution and portability workflows.

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SPI Service

Real-time instant payment processing through the Brazilian Central Bank SPI infrastructure. Handles payment initiation, confirmation, and reversal with sub-second latency.

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Settlement & Netting

Automated settlement cycles with multilateral netting, liquidity management, and reconciliation against BACEN STR. API gateway with rate limiting and routing.

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mTLS Security

End-to-end security with ICP-Brasil certificate-based mutual TLS authentication, XML digital signatures, and JWS message signing for all BACEN communications.

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5,000+ TPS

Engineered for 5,000 sustained transactions per second with 7,500 TPS burst capacity. Built on Elixir/OTP for fault tolerance and horizontal scalability.

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BACEN Compliant

Full compliance with Banco Central do Brasil regulations including DICT, SPI, MED 2.0 fraud prevention, and settlement procedures.

Overview

FluxiQ PIX is a complete platform for participating in Brazil's PIX instant payment system. It provides the backend services required for direct integration with Banco Central do Brasil (BACEN), along with administrative and user-facing portals.

Platform Components

Component	Technology	Port	Purpose
Shared	Elixir	-	DB schemas, BACEN client, auth, Redis, NATS
DICT Service	Elixir/Phoenix	4001	PIX key directory management
SPI Service	Elixir/Phoenix	4002	Instant payment processing
Settlement Service	Elixir/Phoenix	4003	API gateway, settlement, netting
Admin Portal	Vue 3 + PrimeVue	3000	Back-office administration
User Portal	Vue 3 + PrimeVue	3001	End-user payment interface