Lexiara

Authoritative text of one provision, with in-force window, repealed/prospective status, concept tags, transposition edges and full provenance. `stand` says what date the served text speaks as of (`consolidated` with a date, `as-adopted`, or `unknown`) and carries the one-line `sentence` to show a reader — answer questions about currency from it, not from `inForce`, which is when the version's validity starts. Use `asAt` (YYYY-MM-DD) for point-in-time law only where the held expression has an explicit validity window covering that date. Otherwise the tool returns the stable `date_not_covered` refusal; omit `asAt` to request current text. Machine translation is not exposed through this connector because generating a new rendering is not a read-only action. Use sourceLang to select a held source language (three-letter code), including with asAt; this never translates. structure carries immediate parent/child addresses in the selected expression. An empty container text is not missing law: follow children with the same sourceLang and asAt. Use term_languages for authentic multilingual terminology held by the corpus. `gated.citedByArticle` says HOW MANY provisions of other instruments name this article and names those instruments; the rows themselves — which provision, which citation — come from provision_context. The provision text is always free. Only the derived counts (`gated.citedByArticle`, `gated.nationalMandate`) and the analysis behind them require an API key on a signed-in account.

lookup_provision

Everything a topic page shows: the orientation paragraph (with its draft/published editorial status), per-jurisdiction legal-status notes (GB notes carry the assimilated-law caveat), anchored provisions with anchor provenance, article-level transposition links (method, confidence, review verdict — anything not method='human' is evidence, not a finding), and related instruments from Lexiara Nexus.

get_topic

Cross-jurisdiction view of one legal concept: every provision tagged with the given EuroVoc concept, with tagging method and confidence. E.g. 'eurovoc:4585' (VAT), 'eurovoc:4392' (VAT rate). The language-neutral way to line up EU and national law on the same subject.

provisions_by_concept

Search Lexiara's bounded EU and UK legislation corpus. Returns compact, citable results with opaque ids; pass an id unchanged to fetch for the provision text and provenance.

search

The instruments, provisions, subjects, jurisdictions and verticals this API key follows. READ-ONLY: creating or removing a follow is an HTTP POST/DELETE to /v1/follows, and no tool here dispatches one. (The one tool in this catalogue that writes anything is request_ingestion, which asks for a law and touches no follow.) Requires the caller's OWN key — the shared demo key is refused, since a follow list under it would be shared with strangers.

list_follows

How an act words one of its defined terms in each language version held. NOT a translation: an EU instrument is equally authentic in all 24 official languages (Regulation No 1/1958, article 4), so each wording is the law in that language. Use it to answer 'what do the German and French texts call this?' — e.g. 'commercial guarantee of durability' is 'gewerbliche Haltbarkeitsgarantie' and 'garantie commerciale de durabilité'. The term may be given in ANY language held, so the German words find the English definition just as well as the other way round. SCOPE: this is the EU act's own wording per language. It is NOT how a Member State's transposing legislation words it — a national implementation may lawfully choose different wording, and reaching it means following a transposition link that carries a method and a confidence (find_national_implementations). Nothing here is inferred.

term_languages

The cross-reference neighbourhood of a provision plus its amendment history. Use this when a provision's relevance is not on its face: a duty that says 'the information referred to in Article 6(1)' is silent about what that information now includes, and about which amending act put it there. Returns citations both ways and the amending acts marked on this provision and on the ones it cites. `citedByArticle` answers the inbound question at ARTICLE granularity — which provisions of other instruments name THIS article — split into `eu` and `national` by the citing instrument's jurisdiction, and distinct from `citedBy`, which is act-level and returns the same list on every provision of the act. Lexiara Nexus data requires an API key on a signed-in account. The free plan carries a monthly Nexus allowance; the legislative text itself is always free.

provision_context

The published handles — expression id, work ELI, the /v1/works/text and /v1/provisions addresses — plus the source manifest (publisher URL, content hash, bytes, retrieval time, parser version) and the expectation results. Repeat your original lookup with the handles. Pass `expressionId` as the exact `expression` query parameter to `/v1/works/text` or `/v1/provisions` to preserve the acquired expression and language. Cite the source URL in the manifest, not this tool. `coverage: complete_for_scope` means the DECLARED SCOPE was acquired and checked — never that all law applicable to a question has been found.

get_ingestion_result

Change feed: provisions added or modified, filterable by jurisdiction, concept and date. `detectedAt` is when Lexiara observed the change — legal in-force dates come only from the provision itself.

recent_changes

The AUTO-GATED backlog from one place, newest first: unreviewed article-level transposition links with BOTH provision texts side by side and the stored reasoning, model/low-confidence concept tags, draft topic descriptions and jurisdiction notes, and recorded findings (gaps and divergences a round could not decide). Filter by kind, vertical and jurisdiction. EVERYTHING HERE IS UNREVIEWED EVIDENCE — cite none of it as a finding. This tool is READ-ONLY: verdicts are set only by a human with a 'reviewer' key, and no MCP tool can set one.

list_review_queue

Per-source coverage and freshness. Call this first when unsure whether Lexiara holds the law you need — absence of coverage means 'not here', never 'does not exist'. Pass `work` to ask about ONE instrument. The answer then says which kind of absence it is: `metadata-only` (the instrument is known and no text is held), `language-not-held`, or `not-held`. Each carries `requestable` and a `request_hint` you pass to request_ingestion.

get_coverage

The definition of a term of art, and the provision that gives it. Ask this BEFORE search_legislation whenever the question is what a phrase means ('durable medium', 'taxable person'): search returns provisions that USE a phrase, this returns the law that DEFINES it, verbatim. A term defined by several instruments returns several rows — the scope of each definition is the instrument carrying it, so check the work before applying one. The definition text is always free. Only the adoption resolution (`adopts`, which act a borrowed definition comes from) is Lexiara Nexus data requiring an API key on a signed-in account.

define_term

The act-level overview: every provision of every instrument in this corpus that names the given act, grouped by citing instrument, with the article of the act each citation resolved to (`targetEId`, null where the citation is act-level — which is most of them, and is not a defect). Each instrument also carries `adoptions`: definitions it BORROWS from this act rather than writing, which is a different claim and is counted apart, never summed with the citations. Use related_works for the same question at instrument level, which is public. A row asserts that the provision NAMES this act, and nothing about whether it implements or corresponds to it. Lexiara Nexus data requires an API key on a signed-in account. The free plan carries a monthly Nexus allowance; the legislative text itself is always free.

work_mentions

List up to the latest 50 ingestion requests belonging to your account, newest first. Each row includes private status fields such as `intent`, `created_at` and `origin`; another account's requests are never returned. This is read-only and does not start, repeat or alter acquisition work.

list_ingestion_requests