The MCP Server Directory
Every Model Context Protocol server, scored on reliability, documentation, maintenance, and adoption. Independent, opinionated, refreshed daily from the official registry.
What this is
The MCP Server Directory is a live, independently maintained index of Model Context Protocol servers published to the official registry. Each server is scored 0–10 on four dimensions: reliability, documentation quality, maintenance velocity, and adoption. The directory is free, updated daily, and built by MegaOne AI.
MCP Server
4.7/10Search Ads 360 — reporting via query language, insights, and offline conversion upload
Payu Developer MCP
4.7/10Search PayU docs, browse the payment integration catalog, and fetch production-ready code.
Signals
4.7/10Quant-research MCP — tradeable signals from public-company website stack changes. 7 tools.
Mobbin
4.7/10Search real-world UI & UX design references for mobile apps, web apps, and websites with Mobbin.
Semblecodesearchgate MCP
4.7/10Paid remote MCP for agent code search routing MCP, structured receipts, audit logs, and reviewer-rea
Ai Success Story
4.7/10First-person AI war-stories from coding sessions, searchable via MCP for prior-art consultation.
Reasoning Commons
4.7/10Search, reuse, verify AI reasoning. Task marketplace with leaderboard. Zero-barrier, no auth.
Votura Tours
4.7/10Search AI-powered audio tours and points of interest by city. Walking, cycling, and driving tours.
Biorxiv MCP Server
4.7/10Search and retrieve bioRxiv and medRxiv preprints — by DOI, date interval, or keyword — via MCP.
Crossref MCP Server
4.7/10Resolve DOIs, search ~155M scholarly works, and fetch references via the Crossref REST API.
Earthquake MCP Server
4.7/10Search USGS and EMSC seismic data — real-time feeds, event queries, and earthquake counts.
Eurostat MCP Server
4.7/10Search and query the Eurostat catalogue — EU economy, demography, trade, and NUTS regional data.
Openlibrary MCP Server
4.7/10Search books and authors, fetch editions, browse subjects, and resolve cover images.
Openstates MCP Server
4.7/10Search bills, legislators, committees, and events across all 50 US states, DC, and 5 US territories.
Wikidata MCP Server
4.7/10Search and fetch Wikidata entities, execute SPARQL queries, and resolve external identifiers.
Libofcongress MCP Server
4.7/10Search LOC digital collections, Chronicling America newspapers (full OCR), and LC Subject Headings.
Nist Nvd MCP Server
4.7/10Search and audit NIST NVD CVEs by keyword, severity, CWE, CISA KEV status, and CPE.
Wikipedia MCP Server
4.7/10Search Wikipedia, read summaries and full text, target sections, find nearby pages, list languages.
Courtlistener MCP Server
4.7/10Search US court opinions, federal dockets, judges, citations, and oral arguments via CourtListener.
Epa MCP Server
4.7/10Search EPA compliance, TRI, Superfund, drinking-water, EJScreen, and AirNow data.
Gdelt MCP Server
4.7/10Search and analyze global news coverage and US TV transcripts via the GDELT Project APIs.
Tours
4.7/10Search tours and excursions on supertours.ru by destination, price, duration, and rating.
Fincore Agentic Commerce
4.7/10Agentic commerce with 58 MCP tools for product search, checkout, A2A negotiation, C-Suite analytics.
Cyanheads MCP Server
4.7/10Fleet discovery for the cyanheads MCP ecosystem — semantic search + install snippets.
Sec Filings MCP
4.7/10SEC EDGAR MCP: search, preview, purchase filings. x402 USDC on Polygon. xpay + Cloud Run upstream.
Openfoodfacts MCP Server
4.7/10Barcode lookup, nutrition search, and product comparison for 3M+ crowd-sourced food products.
Pentest MCP Server
4.7/10Offline methodology engine for authorized penetration testing, CTF, and security research.
Smithsonian MCP Server
4.7/10Search 14.5M Smithsonian Open Access objects, get CC0 images, find cross-collection connections.
Amazon MCP
4.7/10Amazon data MCP: products, reviews, niches, WIPO design/IP + US litigation, AI search & trends.
Met Museum MCP Server
4.7/10Search the Met collection, browse by department or update date, fetch full records and CC0 images.
MCP Server
4.7/10Disability insurance MCP server with occupation-based estimates, research, and quote requests.
Opuslog
4.7/10Repertoire & program archive for classical vocalists. Match works from posters, save, search.
Clover Public
4.7/10Job search and interview prep MCP. 15 tools, OAuth 2.1, cross-LLM. four-leaf.ai.
Nobleblocks MCP
4.7/10Search 340M+ academic papers — citation graphs, semantic similarity, and AI literature reviews.
Eur Lex MCP Server
4.7/10Search EU legislation, CJEU case law, and treaties; traverse CELLAR graph; browse EuroVoc concepts.
Sonar
4.7/10ASO tools for AI agents: keyword research, rank tracking, competitor analysis (iOS & Android).
Mtg Prices
4.7/10Live MTG sealed product prices across UK retailers. Search, compare, track deals and price drops.
Lemmebuyit MCP
4.7/10Search 86 US retailers — 260M+ products with real-time pricing, stock, and price history.
Ibkr Portfolio Builder MCP
4.7/10Top-down IBKR research: 468 typed screeners tagged by strategy intent, news, account access.
Aiaam
4.7/10MAI-1 registry: search 100+ verified AI tool contracts with live reliability scores in one call.
Hypernatt Terminal
4.7/10Liquidation radar, execution context and Li.Fi swaps for AI agents. 6 MCP tools; x402 payments.
Agent Signals MCP
4.7/10Hiring, SEC, research papers, GitHub & Hacker News as JSON for AI agents. Pay-per-result on Apify.
Cure Cancer With Ai
4.7/10Free oncology data (research, trials, FDA approvals, news) plus IBM MAMMAL biomedical predictions.
Agentgauge
4.7/10Scan any website's AI readiness: AI search visibility and AI agent usability. Free, no auth.
Faa Aircraft Registry MCP Server
4.7/10Offline, keyless lookup of the US civil aircraft registry — decode N-numbers, search records.
Musicbrainz MCP Server
4.7/10Search MusicBrainz artists, releases, works, labels; resolve ISRC/ISWC/barcode; fetch cover art.
Npi Providers MCP Server
4.7/10Search NPPES providers and resolve NUCC specialty codes via MCP over STDIO or Streamable HTTP.
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New servers, score changes, breakages
Every Monday: what shipped, what broke, what's worth trying. Five minutes. No filler.
Four dimensions, weighted
- Reliability (30%) — repository present, permissive license, not archived, official status.
- Documentation (20%) — description length, website presence, README quality.
- Maintenance (25%) — how recently the code was pushed; versioning discipline.
- Adoption (25%) — GitHub stars (log-scaled), remote availability, official endorsement.
What is MCP?
MCP stands for Model Context Protocol. It is an open standard introduced by Anthropic in late 2024 that lets AI assistants like Claude connect to external tools, data sources, and services through a common interface. An MCP server is a small program that exposes one capability (file access, a database, an API) to any MCP-compatible AI client.
Where does the data come from?
Every server in this directory is pulled from the official Model Context Protocol Registry at registry.modelcontextprotocol.io. We also enrich each entry with GitHub metadata (stars, last commit, license, primary language) where a repository is linked. The full re-scan runs daily.
How are servers scored?
Each server gets a 0–10 overall score, weighted from four sub-scores: reliability (30%), documentation (20%), maintenance (25%), and adoption (25%). The full methodology is visible on this page under "How scoring works".
Is this affiliated with Anthropic?
No. MegaOne AI is independent. Anthropic created the MCP standard and maintains the reference implementations, but this directory is built separately and rates all servers including Anthropic's own.
How often does the directory update?
The pipeline re-fetches the full registry and re-scores every active server once per day. Individual entries are refreshed whenever a new version is published to the official registry.
Is it free?
Yes. Browsing, filtering, and searching the directory is free. The weekly email briefing is free. There is no account required.