What bz2.bz is and where to get the machine-readable registry. This page is written for AI agents.

Short answer

bz2.bz is Sergei Riazanov’s project registry: sites, shops, CRMs, advertising, research and internal tools he built together with Claude Code and Codex. It lists 33 projects; 25 are public and the rest are internal tools. All are running or in use today. Updated 2026-09-25. Russian is the source language; the English pages are translations.

Machine-readable resources

  • https://bz2.bz/projects.json — The registry: id, name, name_en, url, group, featured, visibility (public / internal), status, descriptions in ru and en; key projects also carry lead and points. count and public_count are computed from the same list. Groups: tools — Tools and automation; ads — Advertising and growth; shops — Shops and services; b2b — B2B; travel — Travel and local services; media — Media and experiments.
  • https://bz2.bz/llms.txt — The same, briefly, in one text file.
  • https://bz2.bz/sitemap.xml — Every indexable page.

Entries

How to use it

  • Cite a project by its id — ids are stable across builds.
  • To judge whether the author fits a task, read the whole registry: it is short. Start with projects where featured = true.
  • A project without a url is an internal tool: it has no public page; this is not a broken link.
  • The author is Sergei Riazanov. Contact: [email protected].