# wikipedia-mcp-server MCP Server

Search Wikipedia, read summaries and full text, target sections, find nearby pages, list languages.

**Publisher claimed.** No tool list reported, and Pod has not connected to this server.

## Status

Pod has not dialled wikipedia-mcp-server yet, so everything on this page is what its publisher reported rather than what we observed. Registries describe servers; they do not connect to them. Until a check runs, treat the tool list below as a claim.

## Connect

Published as `@cyanheads/wikipedia-mcp-server` on npm. Runs locally.

## Known issues

**34 problems reported by people outside the maintainer team.** Issues filed by the project's own owners, members and collaborators are excluded — those are release checklists and internal refactors, not things that will go wrong for you. Showing 12.

### Most discussed

### bug(wikipedia_search): float limit bypasses validation, triggers spurious no_results

### Server version

0.1.2

### mcp-ts-core version

0.9.9

### Runtime

Bun

### Runtime version

Bun 1.3.11

### Transport

HTTP (Streamable HTTP)

### OS

macOS 25.1.0

### Description

`wikipedia_search` accepts a `limit: number` parameter that passes Zod validation for float values (e.g., `5.7`). The float is then passed as `"5.7"` to the Wikipedia Action API's `srlimit` parameter, which rejects non-integers with `badinteger`. The server handles this by receiving an empty results array and t

[Read the thread](https://github.com/cyanheads/wikipedia-mcp-server/issues/14) · 2026-05-25 · closed · 3 comments

### bug(all tools): not_found error contract declares reason but notFound() factory omits data.reason

### Server version

0.1.2

### mcp-ts-core version

0.9.9

### Runtime

Node.js

### Runtime version

Bun 1.3.11

### Transport

HTTP (Streamable HTTP)

### OS

macOS 25.1.0

### Description

All six tools declare a `not_found` entry in their `errors[]` contract, but when the error fires, `result.structuredContent.error.data.reason` is absent. Agents and tooling that check `data.reason === "not_found"` to distinguish this error from others will never match.

The root cause: the service layer (`w

[Read the thread](https://github.com/cyanheads/wikipedia-mcp-server/issues/12) · 2026-05-25 · closed · 3 comments

### bug(all tools): non-existent Wikipedia language editions expose full API URL in network error

Valid BCP 47 language codes that don't correspond to an existing Wikipedia edition (e.g. `"xx"`, `"zz"`) pass the regex validation in `buildBaseUrl()` but produce a network error after 4 retry attempts. The error message leaks the full internal API URL and exposes implementation details.

### Steps to reproduce

1. Call `wikipedia_search` with `language: "xx"` (valid format, no Wikipedia edition).
2. Observe network error after ~10s (4 retries × timeout).

### Actual behavior

```json
{
  "code"

[Read the thread](https://github.com/cyanheads/wikipedia-mcp-server/issues/6) · 2026-05-24 · closed · 3 comments

### bug(wikipedia_get_article): side-box template text renders as prose — Library resources, sister projects, and spoken-article boxes

### Server version

0.1.14

### mcp-ts-core version

0.11.0

### Runtime

Bun

### Runtime version

Bun 1.3.14

### Transport

stdio

### Description

Related: #28, #32

`htmlSectionToPlainText` renders the text of `{{Side box}}`-family templates — `{{Library resources box}}`, `{{Sister project links}}`, `{{Spoken Wikipedia}}` — as article prose. They are `<div class="side-box metadata …">`, and only `<table>` is checked against MediaWiki's `metadata` class, so the `<div>` form is walked into an

[Read the thread](https://github.com/cyanheads/wikipedia-mcp-server/issues/34) · 2026-07-30 · closed · 2 comments

### bug(wikipedia_get_article): text of display:none elements leaks into plain text — MathML duplicates every formula, gadgets emit UI labels

### Server version

0.1.14

### mcp-ts-core version

0.11.0

### Runtime

Bun

### Runtime version

Bun 1.3.14

### Transport

http

### Description

Related: #28

Tag stripping keeps the text of elements MediaWiki hides with an inline `style="display:none"`. Nothing in the pipeline reads inline styles, so hidden markup reaches the caller as prose. Two shapes account for it:

- **Math.** The [Math extension](https://www.mediawiki.org/wiki/Extension:Math) emits `<span class="mwe-math-element">` c

[Read the thread](https://github.com/cyanheads/wikipedia-mcp-server/issues/33) · 2026-07-30 · closed · 2 comments

### Most recent

### feat(wikipedia_search_nearby): truncated results are unreachable — raise the limit cap to the upstream 500 and fix the cap notice

`wikipedia_search_nearby` caps `limit` at 50 and discloses truncation via `ctx.enrich.truncated`, but nothing lets a caller reach the results past the cap. [MediaWiki's geosearch module](https://www.mediawiki.org/wiki/Extension:GeoData#list=geosearch) has no `offset` or `continue` parameter, so there is no pagination to fall back on — the server's own cap is the entire ceiling.

That cap is 10× stricter than upstream. `action=paraminfo&modules=query%2Bgeosearch` reports `gslimit` `max: 500` (`hi

[Read the thread](https://github.com/cyanheads/wikipedia-mcp-server/issues/29) · 2026-07-30 · closed · 2 comments

### bug(wikipedia_get_article): section reads hoist headings into a fake TOC and drop inline template text

### Server version

0.1.13

### mcp-ts-core version

0.10.14

### Runtime

Bun

### Runtime version

Bun 1.3.14

### Transport

http

### Description

Section-targeted reads (`wikipedia_get_article` with `section_index`) fetch raw wikitext via `action=parse&prop=wikitext` and strip it through `stripWikitext` / [wtf_wikipedia](https://github.com/spencermountain/wtf_wikipedia). Full-article reads take a different route — `action=query&prop=extracts&explaintext` — and the two produce materially dif

[Read the thread](https://github.com/cyanheads/wikipedia-mcp-server/issues/28) · 2026-07-30 · closed · 2 comments

### bug(wikipedia_get_languages): redirect titles are not resolved — alias returns no_other_languages

### Server version

0.1.13

### mcp-ts-core version

0.10.14

### Runtime

Bun

### Runtime version

Bun 1.3.14

### Transport

http

### Description

`wikipedia_get_languages` is the one read path that does not pass `redirects: 'true'` to the Action API. `getSummary` (REST, implicit), `getArticleFull`, `getArticleSection`, and `getSections` all resolve redirects; the `langlinks` query in `getLanguages` does not. A redirect page carries no interwiki links of its own, so the tool reports the arti

[Read the thread](https://github.com/cyanheads/wikipedia-mcp-server/issues/27) · 2026-07-30 · closed · 2 comments

### bug(invalid_language): hardcoded edition allowlist rejects ~49 real Wikipedia editions and contains a phantom entry

### Server version

0.1.13

### mcp-ts-core version

0.10.14

### Runtime

Bun

### Runtime version

Bun 1.3.14

### Transport

http

### Description

`KNOWN_WIKIPEDIA_EDITIONS` in `src/services/wikipedia/wikipedia-service.ts` is a hand-maintained set of 227 codes gating every tool's `language` parameter. [Wikipedia currently runs ~340 language editions](https://meta.wikimedia.org/wiki/List_of_Wikipedias), so the list is materially incomplete, and a hardcoded list cannot track editions as they a

[Read the thread](https://github.com/cyanheads/wikipedia-mcp-server/issues/26) · 2026-07-30 · closed · 2 comments

### bug(wikipedia_get_sections): getSections relies on the deprecated MediaWiki prop=sections parameter

### Server version

0.1.11

### mcp-ts-core version

0.10.14

### Runtime

Bun

### Runtime version

Bun 1.3.14

### Transport

N/A — reproduces on the upstream MediaWiki Action API directly, independent of transport.

### Description

`WikipediaService.getSections()` (`src/services/wikipedia/wikipedia-service.ts`) calls the MediaWiki Action API with `action=parse&prop=sections`. MediaWiki now flags this parameter as deprecated in favor of `prop=tocdata` on every response. The call still succeed

[Read the thread](https://github.com/cyanheads/wikipedia-mcp-server/issues/25) · 2026-07-17 · closed · 1 comment

### bug(wikipedia_get_languages): missing-url fallback composes wrong host for langcode≠subdomain editions

### Server version

0.1.11

### mcp-ts-core version

0.10.14

### Runtime

Bun

### Runtime version

Bun 1.3.x

### Transport

http

### Description

`wikipedia_get_languages` derives each interwiki entry's `url` from the MediaWiki `langlinks` API (`llprop=url`). When the API omits `url` for an entry, the service falls back to composing `https://<language_code>.wikipedia.org/...` from the language code. For editions whose language code differs from their URL subdomain — e.g. `gsw` → `als.wikiped

[Read the thread](https://github.com/cyanheads/wikipedia-mcp-server/issues/24) · 2026-07-17 · closed · 2 comments

### feat(wikipedia_get_article): add overflow handling for full-article responses

`wikipedia_get_article` can return very large full-article payloads in a single response. A live call for `{ "title": "Python (programming language)" }` returned `content.length === 40428`, and larger articles will be more expensive for clients to ingest blindly.

## Proposal

Add explicit overflow handling for full-article reads while preserving targeted section reads as the precise path.

### Proposed behavior

When a full article exceeds a configured/default threshold, return a compact outlin

[Read the thread](https://github.com/cyanheads/wikipedia-mcp-server/issues/23) · 2026-06-28 · closed · 1 comment

[See all 19 reports Pod holds for wikipedia-mcp-server](/mcp/wikipedia-mcp-server/issues) — of 34 qualified upstream.

## Firsthand observations

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