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.
Call Copilot
4.7/10Search and read locally-recorded meeting transcripts over stdio. Read-only, no network.
MCP Retrieval
4.7/10Local Go MCP server: DuckDuckGo/Bing web + image search, readability scraping to Markdown.
Kci Openapi MCP
4.7/10KCI (Korea Citation Index) literature & citation search via REST Open API + OAI-PMH
Scienceon MCP
4.7/10KISTI ScienceON OpenAPI literature search & metadata collection (MCP server + CLI)
Pexels MCP Server
4.7/10MCP server for the Pexels API: search & fetch stock photos, videos, and collections.
Nl Openapi MCP
4.7/10National Library of Korea holdings search - books, online materials, KDC classification
MCP Stashbox
4.7/10Search scenes, performers, studios and tags across the public stash-box catalogues.
Partuno
4.7/10DigiKey and Mouser MCP server for component research, BOM analysis, and sourcing.
Aha MCP
4.7/10Search, read and update Aha.io ideas, features, epics, releases, goals and comments
Pixabay MCP Server
4.7/10Unofficial MCP server for the Pixabay API: search and fetch royalty-free images and videos.
Tube Bridge
4.7/10YouTube MCP server for search, transcripts, frames, comments, channels, and local semantic corpora.
Opensolr MCP
4.7/10Managed Apache Solr for agents: hybrid BM25+kNN search, server-side embeddings, RAG answers
Memgit
4.7/10Git for AI memory — version-controlled, searchable context that persists across sessions
Vecline
4.7/10Local-first image, vector and document toolkit that measures its own output. Nothing uploaded.
Inkwell Memory
4.7/10Persistent memory for AI agents: Markdown entries, hybrid search, typed graph links
Freehire
4.7/10freehire.me: search 3.3M+ IT jobs from 294K company boards, track applications, tailor CVs.
Bitcoin Risk Brief
4.7/10Daily Bitcoin risk with freshness state on every response. Research context, not advice.
Secondhand MCP
4.7/10Search Facebook Marketplace, eBay, Depop, and Poshmark from AI — filters, photos, full listings.
Redditapis MCP
4.7/10Reddit API as MCP tools: search, subreddits, posts, comments, users, monitors, and webhooks.
Whatsapp Connect MCP
4.7/10Read, search, and send personal WhatsApp messages from any MCP client, behind a send-confirm gate.
Grok Build MCP Server
4.7/10Run the Grok Build CLI as MCP tools: agent runs with live progress, code review, web research.
MCP Server
4.7/10Research Polymarket and Kalshi markets, traders, signals, backtests, and paper orders.
Inflectiv MCP Server
4.7/10Search, build and manage Inflectiv datasets and AI agents, plus ChainAware on-chain intelligence.
Calibreweb MCP
4.7/10Read-only MCP server for Calibre-Web: library search, browsing and covers via the OPDS feed
Osm MCP
4.7/10Geocoding, walking/driving/cycling distances, route optimization, isochrones and POI search on OSM
MCP Bideetmusique
4.7/10Search the Bide & Musique collection of forgotten French songs. Records, lyrics, no API key.
Qmd MCP
4.7/10Local QMD search and bounded index maintenance through a Streamable HTTP MCP server.
Aileron
4.7/10Read-only queries over Aileron audit journals: verify integrity, search recorded tool calls
Registry
4.7/10Search agent skills ranked by measured lift vs a no-skill baseline, with safety and rankings.
Tariff Resolver
4.7/10US import duty research: HTS codes, Chapter 99 duties, MPF/HMF fees, landed cost. USITC data.
Research Scan
4.7/10Research Scan finds and verifies the 5–10 recent papers that matter most for a research question.
MCP Anything
4.7/10Meta-MCP gateway: search, inspect and call any MCP server from the public registries.
MCP Server
4.7/10MCP server for UI Beats. Let your coding agent search, read and install animated React components.
Flutter MCP Toolkit
4.7/10Inspect and drive Flutter debug apps/games: semantic snapshots, search, and custom client tools
Lastsearch
4.7/10Evidence-backed web research for AI agents with citations and confidence scores.
MCP Rule34
4.7/10Search rule34.xxx posts by tag through the site's own API. Needs a rule34.xxx API key.
Kbdb
4.7/10A searchable second brain for AI agents: ranked keyword and semantic search over your Markdown.
Second Brain
4.7/10Your own notes, searched and cited by your AI — local-only, allowlist-gated, capped, and logged.
Search MCP
4.5/10The best web search for your AI Agent
Task MCP
4.5/10An MCP server for deep research or task groups
Specproof MCP
4.5/10SpecProof: Search standards specs with MCP-ready precision.
Sourced
4.5/10Source code search for every package on PyPI and npm.
MCP Server
4.5/10Search US hospital prices, compare costs, and find insurance-negotiated rates.
MCP Serp
4.5/10MCP server for Google search results via SERP API
Avalanche Docs
4.5/10Search and retrieve Avalanche blockchain documentation for building on AVAX.
The Data Collector
4.5/10Search Hacker News, Bluesky, and Substack from a single MCP interface
Crossref MCP Server
4.5/10Search 150M+ academic works, journals, and funders via Crossref API.
Free · No spam
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.