Retrieve the full revision history of a Wikipedia article.

Returns one row per revision: art, revid, parentid, user, userid, timestamp, size, comment, tags -- sorted oldest first. Wikitext is not included; use get_article_recent for that.

Retrieve the latest revision of an article (at or before date_limit), including its full wikitext. Returns {"metadata": {...}, "wikitext": "..."}.

Retrieve the first (creation) revision of an article with its wikitext. Returns {"metadata": {...}, "wikitext": "..."}.

Current page metadata: pageid, title, length, last revision id, touched timestamp. A non-existent page is reported with "missing": true.

Info + initial revision + latest revision + full history in one call. Returns {"info", "initial", "recent", "history"}.

Article titles (namespace 0) directly in a category.

Pages directly in a category as a table (pageid, ns, title, type).

Direct subcategories of a category.

Direct subcategories for several categories (rows carry source_category).

Recursively collect subcategories down to depth levels (1-5).

Pages in several categories (rows carry source_category).

Full revision history for a list of articles, concatenated.

Latest revision metadata and wikitext for a list of articles. Returns {"metadata": [...], "wikitext": [...]} in input order.

Creation (first revision) metadata for a list of articles.

Count DOIs in a wikitext string. Returns {"count": n}.

Count tags in a wikitext string. Returns {"count": n}.

Count http(s) URLs in a wikitext string. Returns {"count": n}.

Count ISBNs in a wikitext string. Returns {"count": n}.

Count [[wikilinks]] in a wikitext string. Returns {"count": n}.

Count matches of a regular expression in a text. Returns {"count": n}.

Return every {{cite ...}} template found in a wikitext string.

Return every [[wikilink]] found in a wikitext string.

Replace [[Target|Label]] with Label and [[Target]] with Target. Returns {"cleaned_text": "..."}.

Parse one {{cite ...}} template string. Returns {"cite_type": "journal", "fields": {...}}, or {} if none is found.

Apply a regular expression to an article's latest wikitext.

Apply all built-in patterns (doi, url, ref, isbn, wikilink, pmid, cite_all) to an article's latest wikitext.

Structured citation table, one row per citation template (doi, isbn, pmid, url, title, author, year, journal, publisher, accessdate). Understands the native templates of en/fr/de/es/it/pt Wikipedias.

Long-form citation table, one row per template field (variable, value, canonical_field).

Count citation templates by canonical type (journal, book, web, news, ...) for an article.

Count citation templates by canonical type in a raw wikitext string.

SciScore: the fraction of an article's citation templates that cite journals (0-1). Returns {"sci_score", "article", "lang", "revid"}.

The (up to) 40 most-cited DOIs in an article, annotated through EuropePMC and ranked by how many times the article cites them (wiki_count).

Revert-tagged edits (mw-reverted, mw-undo, mw-rollback) per article in a date window, most reverted first.

Wikipedia only keeps recent changes for about 30 days, so older windows return partial or empty results. The scan can take a minute or more.

Annotate DOIs through EuropePMC: PMID/PMCID, title, authors, journal, year, citation_count, is_open_access. One row per input DOI.

Annotate DOIs through CrossRef: title, authors, journal, year, publisher, type, is_referenced_by_count, url.

BibTeX entries for DOIs (CrossRef content negotiation). Returns {"bibtex_entries": [...]}.

Book metadata from Google Books for one ISBN. The keyless quota is small; set GOOGLE_BOOKS_API_KEY in the server's environment to avoid HTTP 429, or use annotate_isbn_openlib instead.

Book metadata from Open Library for one ISBN.