# adad

> Another day, another dollar. Public information and checked calculator availability.

## Public pages

- [adad](https://adad.app/markdown/home.md): Another day, another dollar. Public guides and honest calculator availability.
- [Calculators](https://adad.app/markdown/calculators.md): Explore adad calculators and check what is available before entering any information.
- [Getting started](https://adad.app/markdown/guide.md): A simple guide to the adad website, public information and calculator availability.
- [Developers and AI](https://adad.app/markdown/developers.md): Read public adad content and calculator availability through the checked HTTP and Effect RPC interfaces.
- [About adad](https://adad.app/markdown/about.md): Learn about another day, another dollar and the public foundation we are building.
- [Privacy](https://adad.app/markdown/privacy.md): How this public foundation handles information, and what it currently collects.
- [Annual tax calculator](https://adad.app/markdown/annual.md): Annual income tax calculations are unavailable until the engine and results are verified.

## Interfaces and availability

The draft implements public HTTP reads for pages and calculator availability, plus the same four operations over Effect RPC at https://api.adad.app/rpc. See https://adad.app/developers for operation details and deployment limitations.

Annual calculations are unavailable. No tax year is confirmed as supported. The draft remote MCP endpoint at https://api.adad.app/mcp uses only version 2026-07-28 and exposes list_pages, get_page, list_calculators and get_calculator. Supporting browsers expose those read tools only while the annual page is mounted at the matching website origin. No working calculation endpoint or calculation tool is advertised. Hosted cutover is a separate approved operation.