About

Legal research that ends at the source.

Citenza is a catalog of legislation with its structure, history and relations intact, readable on the web and available to your AI assistant over MCP.

  • Official sources
  • Historical versions
  • Legal relationships
  • Article-level structure

Where the law comes from

Every jurisdiction keeps its official sources, identifiers and vocabulary.

Two ways to use it

In the catalog

Search by title, by text or by reference, filter by jurisdiction and rank, and read each article with its versions.

Catalog →

In your assistant

Connect Claude, ChatGPT, Claude Code or VS Code to the MCP endpoint and get answers grounded in the cited articles.

Connect →

Citenza is built by datons.