# Wikipedia Mcp Server > Search Wikipedia articles, read summaries and full text, target sections, find nearby pages, and list language editions via MCP. STDIO or Streamable HTTP. - **Type:** MCP server - **Install:** `agentstack add mcp-cyanheads-wikipedia-mcp-server` - **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior - **Seller:** [cyanheads](https://agentstack.voostack.com/s/cyanheads) - **Installs:** 0 - **Category:** [Search](https://agentstack.voostack.com/c/search) - **Latest version:** 0.1.0 - **License:** Apache-2.0 - **Upstream author:** [cyanheads](https://github.com/cyanheads) - **Source:** https://github.com/cyanheads/wikipedia-mcp-server - **Website:** https://www.npmjs.com/package/@cyanheads/wikipedia-mcp-server ## Install ```sh agentstack add mcp-cyanheads-wikipedia-mcp-server ``` Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent. ## About @cyanheads/wikipedia-mcp-server Search Wikipedia articles, read summaries and full text, target sections, find nearby pages, and list language editions via MCP. STDIO or Streamable HTTP. 6 Tools [](./CHANGELOG.md) [](./LICENSE) [](https://github.com/users/cyanheads/packages/container/package/wikipedia-mcp-server) [](https://modelcontextprotocol.io/) [](https://www.npmjs.com/package/@cyanheads/wikipedia-mcp-server) [](https://www.typescriptlang.org/) [](https://bun.sh/) [](https://github.com/cyanheads/wikipedia-mcp-server/releases/latest/download/wikipedia-mcp-server.mcpb) [](https://cursor.com/en/install-mcp?name=wikipedia-mcp-server&config=eyJjb21tYW5kIjoibnB4IiwiYXJncyI6WyIteSIsIkBjeWFuaGVhZHMvd2lraXBlZGlhLW1jcC1zZXJ2ZXIiXX0=) [](https://vscode.dev/redirect?url=vscode:mcp/install?%7B%22name%22%3A%22wikipedia-mcp-server%22%2C%22command%22%3A%22npx%22%2C%22args%22%3A%5B%22-y%22%2C%22%40cyanheads%2Fwikipedia-mcp-server%22%5D%7D) [](https://www.npmjs.com/package/@cyanheads/mcp-ts-core) --- ## Tools Six tools for working with Wikipedia across all language editions: | Tool | Description | |:---|:---| | `wikipedia_search` | Full-text search across Wikipedia, returning ranked results with plain-text snippets and page IDs. | | `wikipedia_get_summary` | Lead-section summary for any article — plain text, Wikidata QID, description, thumbnail URL, and page type. | | `wikipedia_get_article` | Full article or a targeted section as clean plain text, with section markers preserved. | | `wikipedia_get_sections` | Table of contents with `section_index` values for targeted section reads. | | `wikipedia_search_nearby` | Geotagged Wikipedia articles within a radius of a WGS 84 coordinate, sorted by distance. | | `wikipedia_get_languages` | All language editions available for an article, with titles and URLs. | ### `wikipedia_search` Search Wikipedia articles by full-text query. - Returns ranked results with plain-text snippets (HTML stripped), page IDs, and word counts - Use when the exact article title is unknown or to discover multiple articles on a topic - Supports all Wikipedia language editions via the `language` parameter --- ### `wikipedia_get_summary` Fetch the lead-section summary for a Wikipedia article. - Returns the 2–4 paragraph intro, Wikidata QID for cross-referencing, short description, and thumbnail URL - Surfaces `page_type: "disambiguation"` — a signal to follow up with `wikipedia_search` using a more specific query - Redirect pages followed automatically - Right tool for 90% of encyclopedic lookups --- ### `wikipedia_get_article` Fetch article content as clean plain text. - Without `section_index`: returns the full article (40–100 KB for major articles) with `== Section ==` markers - With `section_index` (from `wikipedia_get_sections`): returns just that section (1–10 KB) - Section path uses wikitext stripping via `wtf_wikipedia` --- ### `wikipedia_get_sections` Fetch the table of contents for a Wikipedia article. - Returns section titles, heading levels, section numbering (e.g. "2.1"), and `section_index` values - `section_index` is the integer to pass to `wikipedia_get_article` for targeted reads - Call this before `wikipedia_get_article` when only a specific section is needed --- ### `wikipedia_search_nearby` Find Wikipedia articles about places near a geographic coordinate. - Results sorted ascending by distance in meters - Only articles with geographic coordinates in their Wikidata record are returned - Radius capped at 10,000 meters; up to 50 results per call --- ### `wikipedia_get_languages` List language editions available for a Wikipedia article. - Returns language codes, article titles in each language, and full URLs - Use for cross-language research or to discover a non-English title before switching editions ## Features Built on [`@cyanheads/mcp-ts-core`](https://www.npmjs.com/package/@cyanheads/mcp-ts-core): - Declarative tool definitions — single file per tool, framework handles registration and validation - Unified error handling — handlers throw, framework catches, classifies, and formats - Pluggable auth: `none`, `jwt`, `oauth` - Swappable storage backends: `in-memory`, `filesystem`, `Supabase`, `Cloudflare KV/R2/D1` - Structured logging with optional OpenTelemetry tracing - STDIO and Streamable HTTP transports Wikipedia-specific: - Dual API integration — MediaWiki REST API (`/api/rest_v1/`) for summaries, Action API (`/w/api.php`) for search, full text, sections, geo search, and language links - Retry and backoff on all requests; `User-Agent` header per Wikimedia API policy - Wikitext stripping pipeline via `wtf_wikipedia` — handles links, templates, refs, bold/italic; re-injects section headings for structure - Per-call `language` parameter on every tool — all Wikipedia language editions accessible in a single session - Language validation against ~250 known Wikipedia edition codes — catches structurally valid but nonexistent editions before they cause timeouts Agent-friendly output: - `page_type` field on summaries discriminates article / disambiguation / redirect — no string parsing needed - `wikibase_item` (Wikidata QID) on summaries enables direct cross-referencing with wikidata-mcp-server - `section_index` on table-of-contents entries links directly to the targeted-read parameter on `wikipedia_get_article` - Recovery hints on every error type — callers get actionable next steps (e.g., "use `wikipedia_search` to find the correct title") ## Getting started Add the following to your MCP client configuration file. ```json { "mcpServers": { "wikipedia-mcp-server": { "type": "stdio", "command": "bunx", "args": ["@cyanheads/wikipedia-mcp-server@latest"], "env": { "MCP_TRANSPORT_TYPE": "stdio", "MCP_LOG_LEVEL": "info" } } } } ``` Or with npx (no Bun required): ```json { "mcpServers": { "wikipedia-mcp-server": { "type": "stdio", "command": "npx", "args": ["-y", "@cyanheads/wikipedia-mcp-server@latest"], "env": { "MCP_TRANSPORT_TYPE": "stdio", "MCP_LOG_LEVEL": "info" } } } } ``` Or with Docker: ```json { "mcpServers": { "wikipedia-mcp-server": { "type": "stdio", "command": "docker", "args": [ "run", "-i", "--rm", "-e", "MCP_TRANSPORT_TYPE=stdio", "ghcr.io/cyanheads/wikipedia-mcp-server:latest" ] } } } ``` For Streamable HTTP, set the transport and start the server: ```sh MCP_TRANSPORT_TYPE=http MCP_HTTP_PORT=3010 bun run start:http # Server listens at http://localhost:3010/mcp ``` ### Prerequisites - [Bun v1.3.0](https://bun.sh/) or higher (or Node.js v24+). - No API keys required — Wikipedia's API is public. ### Installation 1. **Clone the repository:** ```sh git clone https://github.com/cyanheads/wikipedia-mcp-server.git ``` 2. **Navigate into the directory:** ```sh cd wikipedia-mcp-server ``` 3. **Install dependencies:** ```sh bun install ``` 4. **Configure environment (optional):** ```sh cp .env.example .env # edit .env if you want to customize WIKIPEDIA_USER_AGENT or logging ``` ## Configuration | Variable | Description | Default | |:---------|:------------|:--------| | `WIKIPEDIA_USER_AGENT` | User-Agent header sent with every Wikimedia API request. Customize for your deployment. | `wikipedia-mcp-server/0.1.10 (https://github.com/cyanheads/wikipedia-mcp-server)` | | `WIKIPEDIA_BASE_URL` | Base Wikipedia URL. Language selection is per-call — not a global language setting. | `https://en.wikipedia.org` | | `MCP_TRANSPORT_TYPE` | Transport: `stdio` or `http`. | `stdio` | | `MCP_HTTP_PORT` | Port for HTTP server. | `3010` | | `MCP_AUTH_MODE` | Auth mode: `none`, `jwt`, or `oauth`. | `none` | | `MCP_LOG_LEVEL` | Log level (RFC 5424). | `info` | | `LOGS_DIR` | Directory for log files (Node.js only). | `/logs` | | `OTEL_ENABLED` | Enable OpenTelemetry instrumentation (spans, metrics, completion logs). | `false` | See [`.env.example`](./.env.example) for the full list of optional overrides. ## Running the server ### Local development - **Build and run:** ```sh # One-time build bun run rebuild # Run the built server bun run start:stdio # or bun run start:http ``` - **Run checks and tests:** ```sh bun run devcheck # Lint, format, typecheck, security bun run test # Vitest test suite bun run lint:mcp # Validate MCP definitions against spec ``` ### Docker ```sh docker build -t wikipedia-mcp-server . docker run --rm -p 3010:3010 wikipedia-mcp-server ``` The Dockerfile defaults to HTTP transport, stateless session mode, and logs to `/var/log/wikipedia-mcp-server`. OpenTelemetry peer dependencies are installed by default — build with `--build-arg OTEL_ENABLED=false` to omit them. ## Project structure | Directory | Purpose | |:----------|:--------| | `src/index.ts` | `createApp()` entry point — registers tools and inits the Wikipedia service. | | `src/config` | Server-specific environment variable parsing and validation with Zod. | | `src/mcp-server/tools` | Tool definitions (`*.tool.ts`) — one file per tool. | | `src/services/wikipedia` | WikipediaService — REST API + Action API client with retry/backoff and language validation. | | `tests/` | Unit and integration tests mirroring `src/`. | ## Development guide See [`CLAUDE.md`](./CLAUDE.md) for development guidelines and architectural rules. The short version: - Handlers throw, framework catches — no `try/catch` in tool logic - Use `ctx.log` for request-scoped logging, `ctx.state` for tenant-scoped storage - Register new tools in `src/mcp-server/tools/definitions/index.ts` - Wrap external API calls: validate raw → normalize to domain type → return output schema; never fabricate missing fields ## Contributing Issues and pull requests are welcome. Run checks and tests before submitting: ```sh bun run devcheck bun run test ``` ## License Apache-2.0 — see [LICENSE](LICENSE) for details. ## Source & license This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code. - **Author:** [cyanheads](https://github.com/cyanheads) - **Source:** [cyanheads/wikipedia-mcp-server](https://github.com/cyanheads/wikipedia-mcp-server) - **License:** Apache-2.0 - **Homepage:** https://www.npmjs.com/package/@cyanheads/wikipedia-mcp-server Install and usage instructions live in the source repository linked above. ## Pricing - **Free** — Free ## Security capabilities Automated source analysis of v0.1.0 — what this tool can access: - **Network access:** no - **Filesystem access:** no - **Shell / process execution:** no - **Environment & secrets:** yes - **Dynamic code execution:** no *"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.* ## Versions - **0.1.0** — security scan: passed — Imported from the upstream source. ## Links - Listing page: https://agentstack.voostack.com/l/mcp-cyanheads-wikipedia-mcp-server - Seller: https://agentstack.voostack.com/s/cyanheads - Browse the marketplace: https://agentstack.voostack.com/browse --- Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.