---
title: "Snoopi.io — Carlos Arias"
description: "IP intelligence and location APIs for developers. Ten years old and still running, which taught me more about maintenance than any of the new ones have."
url: "https://carlosarias.com/projects/snoopi-io"
---

# Snoopi.io

Started as a way to learn PHP OOP properly. Ten years later it is still running, and still shipping.

Founder, everything

- **Category**:  SaaS
- **Released**:  2015

Visit snoopi.io

## Origin

This one started as a learning project in 2015. I wanted to understand PHP object-oriented programming properly, and building a real REST API that other developers could actually use seemed like a better teacher than a tutorial.

Ten years later it is still in production.

## What it does

GeoIP location and IP fraud prevention. Developers hit the API to resolve an IP to a location; marketers use the tracking script to understand where landing page traffic actually comes from.

## Engineering notes

- Real-time tracking script for sites and landing pages
- GeoIP-driven landing page optimisation
- Custom dashboard with invoice and subscription management
- Stripe integration using a custom card form

## What is next

AI analysis, to help marketers identify their best-performing pages rather than just reporting where visitors came from.

## Skills applied

### Engineering

- PHP OOP
- REST API design
- Real-time tracking

### Product

- Subscription billing
- Invoice management
- Custom dashboard

### Marketing

- GeoIP landing-page optimisation

## Built with

- PHP
- REST API
- WordPress
- Stripe

## More work

  [Nova 2026 to present The platform this site runs on. Nova is a team of AI agents that handles the repetitive work behind digital marketing, rank tracking, local SEO, citations, competitor research, content, QA, small site fixes, so that the hours I spend go to strategy instead. It runs my own projects and client websites in production. Agentic Tools Websites](/projects/nova)[Crawller April 2026 to present A crawler I built because the existing ones were not good enough for what I needed, large-scale collection, knowledge extraction, and indexing that AI can actually use. Tools Agentic](/projects/crawllr)[Medellin.co 2022 to present A city platform for travelers, expats and local businesses. It is where I learned RAG and autonomous content generation properly, at a scale where getting it wrong was visible. Websites SaaS Agentic](/projects/medellin-co)

## Building something like this?

  [Start a conversation](/contact) [See all projects](/projects)