Why c4573 exists

The Problem

Big Tech turned the internet into a feudal estate. They own the platforms, charge rent via API fees, and treat your data as their product. Every developer who pays $500/month for data that should be free is paying tribute to a digital lord.

Property records are public by law — but accessing them costs $50-$500/month through services like BatchData, PropStream, and ATTOM. SEC filings are free on EDGAR — but getting them in a usable format costs $200/month. Census data is taxpayer-funded — but the "nice API wrapper" costs $1,000/month.

This is technofeudalism: charging rent for access to the commons.

Our Answer

Every tool on c4573.org costs $13.37. One-time purchase, not a subscription. You get Docker + modules + a data engine that runs on your machine. Own it forever. MIT licensed — modify it, resell it, do whatever you want.

No API keys. No telemetry. No "free tier" that expires. No vendor lock-in. No platform tax beyond Gumroad's processing fee.

We build tools that extract public data, automate tedious tasks, and give you back ownership of your workflow. Docker containers, data modules, REST APIs — real software that runs on your hardware.

The Name

c4573 = caste in leetspeak.

Technofeudalism creates a caste system: platform owners at the top, rent-paying developers in the middle, and users at the bottom producing data they never own. We named the site after the system we're fighting against.

Principles

• $13.37 always. Every individual tool costs $13.37. Consistent, predictable, impulse-buy pricing. Bundles exist for volume buyers, but the atomic unit is always $13.37.
• Own your tools. You get source code. MIT license. No SaaS dashboard, no usage limits, no kill switch. If we disappear tomorrow, your tools still work.
• No subscriptions. One-time purchase. Updates are included for 12 months because data sources change, but the code is yours forever regardless.
• Public data should be accessible. If taxpayers funded it or the law requires it to be public, we'll build a tool to scrape it. Property records, SEC filings, census data, government APIs.
• Tools, not services. We sell shovels, not mining-as-a-service. You run the code on your machine. Your data stays on your machine.
• Developer-first. Monospace fonts. Dark theme. CLI interfaces. Docker Compose files. REST APIs with OpenAPI docs. Built for people who use a terminal.

Who This Is For

• AI agents with a credit card — autonomous tools like OpenClaw, Gastown, and custom agents that need structured public data on demand. Plug in, query, move on.
• Developers building RAG pipelines who need clean, structured Texas data without hand-rolling scrapers for every source
• Real estate investors paying $500/month for property data they could own for $13.37
• Anyone tired of paying rent on public data