How does the CPF/CNPJ validation work?

It implements the official Modulo 11 check-digit algorithms to verify the mathematical validity of Brazilian individual and corporate tax identification numbers.

Does this skill support multiple Brazilian banks?

Yes, it provides a flexible architecture with specific implementation patterns that can be adapted for major banks like Banco do Brasil, Itaú, and others.

Can I use this for production-grade Boleto generation?

The skill provides the logic and FEBRABAN-compliant algorithms for barcodes and typeable lines, serving as a robust foundation for production financial systems.

Does it handle Brazilian currency and date formats?

Yes, the skill includes helper patterns for handling BRL currency formatting and Brazilian-specific date logic required for payment due dates.

Brazilian Financial Integration

Name: Brazilian Financial Integration
Author: rafaelkamimura

byrafaelkamimura

•

E-commerce Solutions

Integrates Brazilian payment systems including Boleto, PIX, installment plans, and official tax ID validations into your applications.

This skill provides Claude with specialized domain knowledge for navigating the complex Brazilian financial ecosystem. It offers standardized patterns for implementing Boleto bancário generation (including barcode and typeable line logic), PIX instant payments, and complex installment (parcelamento) calculations. Additionally, it includes robust validation logic for CPF and CNPJ tax IDs and provides structural guidance for integrating with major Brazilian banking APIs like Banco do Brasil. It is an essential toolkit for developers building fintech solutions, e-commerce platforms, or any system requiring compliance with Brazilian banking standards.

Key Features

01Boleto bancário generation with FEBRABAN-compliant barcode logic

02Official CPF and CNPJ validation using standard check-digit algorithms

034 GitHub stars

04PIX instant payment integration patterns and QR code support

05Installment (parcelamento) calculators with interest and schedule management

06Domain-driven design patterns for scalable financial modules

Use Cases

01Developing payment processing systems for the Brazilian market

02Implementing automated billing workflows with Boleto and PIX support

03Building fintech applications that require banking API integrations

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add rafaelkamimura/claude-tools brazilian-financial-integration

For use in Claude.ai and ChatGPT

Download Skill