# Merit

> MCP server for Slovak case law (Supreme Court of the SR, Supreme Administrative Court of the
> SR, Constitutional Court of the SR, general courts) and Slovak legislation (Collection of Laws).
> Access via Google OAuth 2.0.

## Connection

- MCP endpoint: `https://merit.slv.cz`
- Transport: streamable HTTP
- Authentication: Google OAuth 2.0 (interactive browser flow, dynamic client registration)
- Guide, registration and supported clients (Claude Desktop, ChatGPT, …): https://merit.slv.cz/

## Tools

The server provides six tools. All are read-only and idempotent.

- **search_decisions** — fulltext, semantic or hybrid search across decisions.
  Parameters: `query`, `idx` (`justice` / `ns` / `nss` / `us`), `mode` (`hybrid` / `bm25` / `knn`),
  optionally a regulation filter (`reg_num`, `reg_year`, `reg_par`) or a date filter
  (`date_from`, `date_to`). Returns a list with the ECLI, court, case number, date
  and a short excerpt.

- **fetch_decision** — full text of a decision by ECLI. Parameters: `ecli`, `idx`.
  Returns the header, holding, reasoning, the legal sentence (právna veta, if any), cited regulations,
  other decisions citing this file (`citedBy`) and decisions cited in it
  (`citedCaseLaw`), ordered newest first.

- **search_by_case_number** — search by case number.
  Examples: `2 Cdo 147/2024`, `III. ÚS 114/2010`, `8 Sžfk 24/2023`, `10 C 11/2023`.

- **search_regulations** — search regulations in the Collection of Laws by name
  or keyword. Examples: "Občiansky zákonník", "Zákonník práce",
  "Civilný sporový poriadok", "Daň z pridanej hodnoty".

- **fetch_regulation_text** — text of a regulation or of a specific § / art.
  Parameters: `num`, `year`, optionally `par`. Citation in the form `40/1964 Zb.` (before 1993)
  or `595/2003 Z. z.` (from 1993).

- **fetch_regulation_info** — regulation metadata (title, description, citation).

## Coverage

- **justice** — general courts of the SR (district, regional). Civil, criminal,
  family, commercial, consumer and labour disputes at first
  and second instance.
- **ns** — Supreme Court of the SR. Case law, appeals on points of law (dovolania), opinions.
  Includes the legal sentence.
- **nss** — Supreme Administrative Court of the SR and the administrative panels of regional courts. Taxes,
  immigration, social security, the environment, public procurement, spatial planning.
  Includes the legal sentence.
- **us** — Constitutional Court of the SR. Findings, orders, plenary opinions. Constitutional law,
  fundamental rights, constitutional review of legislation. Includes the legal sentence.
- **Collection of Laws** — regulations of ČSR/ČSSR/ČSFR/SR from 1939 to the present
  (`Zb.` before 1993, `Z. z.` from 1993).

## Search modes

- `hybrid` (default) — BM25 + semantic kNN via rank fusion. For most queries.
- `bm25` — fulltext with Slovak lemmatization. For exact legal terms, phrases
  or regulation citations.
- `knn` — semantic vector search. For natural language where the exact
  wording does not matter.

## Multi-index search

For general questions it is advisable to search several indices at once. Examples:
"case law on damages" → `ns` + `us` + `justice`. Administrative-law questions
→ add `nss`. Each index contains different decisions — searching only one
overlooks relevant case law.

## Legal documents

- [Terms of service](https://merit.slv.cz/user/terms.cgi)
- [Privacy policy](https://merit.slv.cz/user/privacy.cgi)
- Operator: Sokordia, s.r.o., IČO 50023748, Osadná 2, 831 03 Bratislava
- Contact: mcp@slv.cz