01 · Find
Search the legal text
Use exact terms, natural language or facets for jurisdiction, legal level, rank and status.
Corpus online Read the law as it stands.
Read the law as it stands.
Cite the version that mattered.
Citenza gives legal and regulatory teams a source-grounded view of legislation across jurisdictions, amendments and time.
48K+normative acts
478K+legal units
4legal layers
Ley 24/2013 · Art. 14
Electricity Sector Act
01
The applicable text is resolved against the selected date and official publication.
02Every amendment remains traceable to the act that introduced it.
03Relations connect national rules with the legislation they implement or modify.
AMENDED BY2024 · 03 · 21
VALID ONSelected date
Official sources
Historical versions
Legal relationships
Article-level structure
From query to authority
Research that ends at the source.
Citenza does not flatten law into anonymous text. It preserves the structure and provenance an expert needs to verify the answer.
02 · Resolve
Put the answer in time
Open the version effective on a selected date and compare wording article by article.
03 · Verify
Return to authority
Follow the citation to the source record, the amending act and connected legislation.
One model, several legal systems
Coverage without losing jurisdiction.
Each source keeps its own identifiers and vocabulary while sharing a common structure for search, comparison and citation.
Spain
BOE and autonomous community journals
Chile
Biblioteca del Congreso Nacional
Italy
Normattiva and Gazzetta Ufficiale
European Union
EUR-Lex and CELLAR
Model Context Protocol
Give your assistant the law, not a summary of it.
Connect Citenza once. Your compatible AI client can then describe the corpus, search legal units, read the full text, compare versions and traverse legal relationships.
- Source-grounded responses
- Token-efficient result formats
- Deep links to every cited unit
EndpointMCP
https://mcp.datons.com/lex/mcp/ Works with Claude, ChatGPT, Cursor, VS Code and other MCP-compatible clients.
Questions, answered precisely
Before you connect.
Citenza indexes legislation from Spain, Chile, Italy and the European Union. The corpus includes national, subnational and supranational sources, with structure preserved down to individual legal units.
Yes. Historical versions are stored at article level, so a response can point to the wording that applied on a specific date and show how it differs from another version.
Every record is grounded in official publishers such as BOE, BCN, Normattiva, Gazzetta Ufficiale and EUR-Lex. Source identifiers and deep links remain attached to the legal text.
Citenza exposes a Model Context Protocol endpoint. Add the endpoint to any compatible client, authenticate when required and the assistant can search, read, compare and traverse the legal corpus.
Citenza