awesome-mcp-servers

# Awesome MCP Servers Collection of API-specialized MCP (Model Context Protocol) servers. Each server targets one API and supports both HTTP and stdio transports. No API keys required. **Prerequisites:** Node.js 18+, npm ## Servers | Server | Description | |--------|-------------| | [unified-mcp](servers/unified-mcp/) | **All-in-one** — bundles every server below with popular tools + search_tools / execute_tools (no API key) | | [open-meteo-mcp](servers/open-meteo-mcp/) | Weather API — location search, current weather, forecasts (no API key) | | [rest-countries-mcp](servers/rest-countries-mcp/) | Countries API — lookup by name/code, search by region/capital, list all (no API key) | | [wikipedia-mcp](servers/wikipedia-mcp/) | Wikipedia/MediaWiki API — search articles, get summaries and extracts (no API key) | | [hacker-news-mcp](servers/hacker-news-mcp/) | Hacker News API — top stories, items, comments, Algolia search (no API key) | | [arxiv-mcp](servers/arxiv-mcp/) | arXiv API — search research papers, fetch by ID, list by category (no API key) | | [open-library-mcp](servers/open-library-mcp/) | Open Library — book search, ISBN/work/author lookup (no API key) | | [nominatim-mcp](servers/nominatim-mcp/) | OpenStreetMap Nominatim — forward & reverse geocoding (no API key) | | [dictionary-mcp](servers/dictionary-mcp/) | Free Dictionary API — definitions, synonyms, phonetics (no API key) | | [frankfurter-mcp](servers/frankfurter-mcp/) | Frankfurter — ECB FX rates, conversion, historical & time series (no API key) | | [usgs-earthquake-mcp](servers/usgs-earthquake-mcp/) | USGS Earthquake Catalog — query events by region/magnitude/time (no API key) | | [spacex-mcp](servers/spacex-mcp/) | SpaceX — launches (latest/next/list), rockets, single-launch lookup (no API key) | | [github-public-mcp](servers/github-public-mcp/) | GitHub public REST — repos, users, issues, releases, search (unauthenticated, ~60 req/hr) | | [mdn-compat-mcp](servers/mdn-compat-mcp/) | MDN — search docs, fetch page, browser-compat extraction (no API key) | | [datamuse-mcp](servers/datamuse-mcp/) | Datamuse — rhymes, synonyms, means-like, sounds-like, suggest (no API key) | | [trivia-mcp](servers/trivia-mcp/) | Open Trivia DB — questions, categories, per-category counts (no API key) | | [crossref-mcp](servers/crossref-mcp/) | Crossref — DOI metadata, works/journals search (no API key; optional `mailto` for polite pool) | ## Quick Start From the repo root: ```bash npm install npm run build # turbo builds all servers in dependency order (cached) npm start # starts unified-mcp (HTTP+stdio) on port 8000 ``` Other root scripts (all powered by [turbo](https://turborepo.com)): | Script | What it does | |--------|-------------| | `npm run build` | Build every server. Cached — re-runs are near-instant. | | `npm start` | Start `unified-mcp` (default transport: both). | | `npm run start:http` | Start `unified-mcp` on HTTP only (port 8000). | | `npm run start:stdio` | Start `unified-mcp` on stdio only (Cursor / Claude Desktop). | | `npm run start:all` | Start every server in parallel. | ### Running a single server Filter via turbo from the root: ```bash npx turbo run start:http --filter=open-meteo-mcp # port 3500 npx turbo run start:http --filter=rest-countries-mcp # port 3501 npx turbo run start:http --filter=hacker-news-mcp # port 3502 npx turbo run start:http --filter=wikipedia-mcp # port 3503 npx turbo run start:http --filter=arxiv-mcp # port 3504 npx turbo run start:http --filter=open-library-mcp # port 3505 npx turbo run start:http --filter=nominatim-mcp # port 3506 npx turbo run start:http --filter=dictionary-mcp # port 3507 npx turbo run start:http --filter=frankfurter-mcp # port 3508 npx turbo run start:http --filter=usgs-earthquake-mcp # port 3509 npx turbo run start:http --filter=spacex-mcp # port 3510 npx turbo run start:http --filter=github-public-mcp # port 3511 npx turbo run start:http --filter=mdn-compat-mcp # port 3512 npx turbo run start:http --filter=datamuse-mcp # port 3513 npx turbo run start:http --filter=trivia-mcp # port 3514 npx turbo run start:http --filter=crossref-mcp # port 3515 ``` Or `cd` into the server and use its own scripts (`npm start`, `npm run start:http`, `npm run start:stdio`). ## Known limitations - **Rate limits:** External APIs (Open-Meteo, Wikipedia, etc.) may enforce rate limits; no keys = shared quotas.