act60.me developer resources

How an agent should read the site

Fetch /llms.txt first, then the matching public guide. The same URL that serves HTML also serves Markdown when the request sends Accept: text/markdown. Those responses use Content-Type: text/markdown; charset=utf-8 and Vary: Accept. A client that rejects both HTML and Markdown receives HTTP 406.

Optional .md siblings resolve to the same Markdown body. This includes the resource hub and all source-backed /resources/* articles.

Existing public sources

ACT60 already publishes official PDFs, a checked manifest, and the calculator dataset. The OpenAPI document and RFC 9727 catalog only list those files. There is no OAuth authorization server, GraphQL endpoint, MCP server, webhook hub, or commerce checkout.

• llms.txt
• OpenAPI description
• RFC 9727 API catalog
• XML sitemap
• robots.txt
• Latest saved law redirect
• Official source archive
• Official document manifest
• Calculator tax dataset

JSON errors

Unknown /api/* paths that are not the private day tracker or Suite relying party return RFC 9457 application/problem+json with a stable code, detail, and a pointer back here. /api/days and /api/suite-auth stay account-owned and are not part of this catalog.