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.
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.
Web Search
4.7/10Web search for AI agents — one tool across 6 engines, routed to the cheapest + cached.
Federal Regulations MCP Server
4.7/10Search and trace US federal rules across the Federal Register, eCFR, and Regulations.gov.
Workopia MCP
4.7/10Search 6.3M+ live jobs from companies' own career pages, plus resume tailoring & cover letters.
Research
4.7/10No-key MCP: audit/certify MCPs, signed trust history; join Gold Rush Town & build with your LLM.
Workspace Tools
4.7/10Sandbox workspace tools: search, file read, DB queries, integrations. Returns synthetic data.
Brand Intel MCP
4.7/10Domain & brand intelligence: company enrichment, tech stack detection, brand research.
Gov Contracts MCP
4.7/10Government contract search and federal procurement data: SAM.gov opportunities + USASpending awards.
Patent Intel MCP
4.7/10Patent search, USPTO data, patent landscape & pgvector prior-art search for agents.
Writespace MCP
4.7/10Persistent docs and memory for AI agents — read, write, organize & search a shared workspace.
Academic Intel MCP
4.7/10Academic paper search, scientific literature, citation analysis, arXiv & semantic related-work.
Agentdocs MCP
4.7/10AgentDocs (agentdocs.eu) MCP: read, search, write, comment, share & attach images to Markdown docs.
Freeport Nostr
4.7/10Search Freeport Nostr events by kind, tag & geohash radius (rides, services, reputation).
Tako MCP
4.7/10Give your agent web search and authoritative datasets: S&P Global, FRED, OECD, SimilarWeb & more.
Llmemory
4.7/10Search your AI chat history (ChatGPT, Claude, Codex) from any MCP client. Remote, private, read-only
Noaa Climate MCP Server
4.7/10Search NOAA climate stations and datasets, fetch historical weather observations.
Horizon Insights MCP
4.7/10Market data, financial statements, valuation, research, and news for investment workflows.
Neuralbrain
4.7/10NeuralBrain MCP Server - RAG, Vector Memory, LLM Routing, Agent Identity, x402 Payments
Content Intelligence Api
4.7/109 MCP tools: extract, analyze, research, compare, monitor, brief. Pay-per-call x402 or subscribe.
Api
4.7/10Search and book agricultural contracting services on the Purple Grain marketplace.
Paleobiology MCP Server
4.7/10Search fossil occurrences, taxon ranges, diversity through deep time, and the geologic time scale.
Uniprot MCP Server
4.7/10Protein research over UniProtKB: search by function, fetch curated records, map IDs, proteomes.
Bullrun
4.7/10Global stock research, ML forecasts, valuation signals, screeners & portfolio tracking in Claude
Altmetric MCP
4.7/10MCP server for Altmetric APIs - track research attention across news, policy, social media, and more
Grantsonar
4.7/10Search verified-open US grants (federal, state, foundation). Read-only MCP for AI agents.
Health
4.7/10Supplement research, biomarker effects, drug interactions, and brand quality data
Comitelligence
4.7/10Agent-native search of EU comitology: committees, votes, dossiers, and implementing-act documents.
Workorai
4.7/10WorkorAI talent marketplace MCP: candidate job search and employer hiring with explainable matching
Ai Screening
4.7/10AI hiring tools CV screening, social media profile scan, and document search for any organization.
Wt
4.7/10Human Lineage MCP server — search and query the public genealogical graph of all humanity
MCP Server Vivino
4.7/10Vivino wine data for AI assistants: search, explore, wine details and meal-aware recommendations
Culturelib Discover
4.7/10French cultural events search with multi-reseller ticket price comparison (theatre, concerts...)
Zoom Meetings
4.7/10Zoom Meetings server for meeting search, recordings, transcripts, summaries, and meeting assets.
Ris Austria MCP Server
4.7/10Search Austrian federal and state law, court decisions, and the authentic Bundesgesetzblatt (RIS).
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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.