EU treaties

3 tools for EU primary law — TEU, TFEU, and the Charter of Fundamental Rights. Available in English, German, and French.

`eu_list_treaties`

List EU primary law (treaties, protocols, Charter).

Parameter	Type	Description
`lang`	"en" \| "de" \| "fr"	Language filter.
`limit`	number= 20	Max results to return.
`offset`	number= 0	Skip first N results.

ArgumentsJSON

{
  "lang": "en",
  "limit": 2
}

Responsetext

Showing 1-2 of 7308 EU treaties:

- 11951K - Treaty establishing the European Coal and Steel Community...
  EN

- 11951K000 - Treaty establishing the European Coal and Steel Community...
  Entry into force: 1952-07-23
  EN

`eu_search_treaties`

Full-text search EU treaties. Query syntax: Terms (subsidiarity), AND (implicit: qualified majority), Phrases ("internal market"), OR (Parliament OR Council), NOT (-protocol).

Parameter	Type	Description
`query`required	string	Search query (supports phrases, OR, -negation).
`celex`	string	Search within a specific treaty.
`lang`	"en" \| "de" \| "fr"	Language filter.
`limit`	number= 10	Max results to return.
`offset`	number= 0	Skip first N results.
`window_size`	number= 64	Snippet context size in tokens.

ArgumentsJSON

{
  "query": "subsidiarity",
  "lang": "en",
  "limit": 2
}

Responsetext

Showing 1-2 of 96 results for "subsidiarity":

- 12016M/PRO/02 - Consolidated version of the Treaty on European ...
  EN
  ...PROTOCOL (No 2) ON THE APPLICATION OF THE PRINCIPLES OF SUBSIDIARITY AND PROPORTIONALITY...

- 12004V/PRO/02 - Treaty establishing a Constitution for Europe -...
  EN

`eu_get_treaty`

Get EU treaty by CELEX number.

Parameter	Type	Description
`celex`required	string	Treaty CELEX number (e.g., 12016M).
`lang`	"en" \| "de" \| "fr"	Preferred language.
`offset`	number= 0	Character offset for pagination.
`limit`	number= 4000	Max characters to return.

ArgumentsJSON

{
  "celex": "12016M005",
  "lang": "en"
}

Responsetext

---
celex: 12016M005
eli: http://data.europa.eu/eli/treaty/teu_2016/art_5/oj
date_signed: 1992-02-07
date_entry_into_force: 1993-11-01
lang: en
---

# Consolidated version of the Treaty on European Union - TITLE I - COMMON PROVISIONS - Article 5 (ex Article 5 TEC)

Article 5
(ex Article 5 TEC)

1. The limits of Union competences are governed by the principle of conferral. The use of Union competences is governed by the principles of subsidiarity and proportionality...