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How to check CPF via API in Node.js and Python

Transparência: sou fundador da CPFHub, a API usada nos exemplos. Os conceitos (validação local, tratamento de erros, LGPD) valem para qualquer API de consulta de CPF. Se você tem um formulário de cadastro, um checkout ou um backoffice no Brasil, cedo ou tarde precisa conferir se o CPF digitado existe e bate com o nome informado. Neste tutorial mostro como usar uma API de consulta de CPF em…

Translated from Portuguese Read in Portuguese

An article discusses using an API to validate and query Brazilian CPF numbers. The CPFHub API allows users to validate CPF digits locally and query the database for basic information such as name, gender, and birthdate. The article provides code examples in Node.js and Python for validating CPF digits and making a simple GET request to the CPFHub API. The API returns basic data on the CPF holder, including name, gender, and birthdate, and costs 1 credit per successful query.

Written by urgent.news from Dev.to's report — not a translation of it. Machine-written — may contain errors; check the original before relying on it.

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LGPD and CPF query via API: purpose, legal basis and what to keep

Transparência: sou fundador da CPFHub, uma API de consulta de CPF. Este artigo não é aconselhamento jurídico. É um guia prático para desenvolvedores; para o seu caso concreto, consulte um…

  • Finalidade da consulta de CPF via API deve ser legítima, específica e comunicada
  • Base legal comum inclui cumprimento de obrigação legal e legítimo interesse
  • Minimizar dados coletados, mascarar CPFs completos nos logs de aplicação

ShowWindow: a card-show visit that fits your actual afternoon

This is a submission for the Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle . What I Built ShowWindow helps a collector choose a Las Vegas card-show visit around the hours, people and…

  • ShowWindow organizes Las Vegas card-show visits based on user schedule and preferences
  • App compares available sessions, explains time and cost for customized plan
  • Free tool uses Qwen3.5-4B model and MIT-licensed data

Close the Trace on a Matching Receipt

An agent trace is closed when a local export receipt names the same tool set as the plan. A zero exit code does not close it.

  • Agent trace closes only when plan matches exported tool names
  • Exit code indicates runtime stop, receipt scans all crate IDs
  • Discrepancies between sets reveal exporter or runner issues

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