ZipCheckup makes federal safety data accessible to US homeowners. We pull from 50+ government sources (EPA, FEMA, CDC, Census, USGS) and combine them into free, per-ZIP home safety reports. 278,000 pages covering water quality, lead risk, radon, floods, wildfires, and 12 more verticals. All data is open (CC BY 4.0) and available via API, npm, HuggingFace, and Kaggle. Built by one person, an AI coding tool, and a lot of messy federal CSVs.
Our stack
Node.js, EJS, Cloudflare Workers, Cloudflare R2, GitHub Actions (self-hosted), Hetzner, Telegram Bot API, Google Analytics 4, Microsoft Clarity. Data pipeline: 90+ Node.js scripts, 21 cron jobs, 50+ federal APIs (EPA SDWIS, ECHO, FEMA NFIP, Census ACS, CDC, USGS, EIA, CPSC, NWS, AirNow). Open dataset on npm, HuggingFace, Kaggle. $5/mo hosting.
