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.
Mydisease
4.1/10MyDisease.info MCP.
Myvariant
4.1/10MyVariant.info MCP.
Triall
4.1/10Multiple AIs peer-review and debate your question, then return one fact-checked answer.
Biosamples
4.1/10EBI BioSamples MCP.
Biostudies
4.1/10EBI BioStudies MCP.
Complex Portal
4.1/10EBI Complex Portal MCP.
Expression Atlas
4.1/10EBI Expression Atlas MCP.
Capitolguide
4.1/10Navigate the U.S. Capitol complex: decode room codes, route buildings, check access, amenities.
Ahel
4.1/10Your apps, skills, MCP servers and keys from ahel.ai, served to Claude, ChatGPT, Cursor and Codex.
Seoul Tourism
4.1/10Official Seoul tourism data in 7 languages, in cooperation with the Seoul Tourism Organization.
Ecosystems
4.1/10ecosyste.ms Packages MCP.
Epa Envirofacts
4.1/10US EPA Envirofacts MCP.
Fbi Wanted
4.1/10FBI Wanted MCP.
Futuur
4.1/10Futuur Prediction Market MCP.
Geonet Nz
4.1/10GeoNet New Zealand MCP.
Manifold
4.1/10Manifold Markets MCP.
Openholidays
4.1/10OpenHolidays MCP.
Opentreeoflife
4.1/10Open Tree of Life MCP.
Poetrydb
4.1/10PoetryDB MCP.
Predictit
4.1/10PredictIt MCP.
Sciencebase
4.1/10USGS ScienceBase catalog MCP.
Soilgrids
4.1/10ISRIC SoilGrids MCP.
Spaceflight News
4.1/10Spaceflight News MCP.
Whiskyhunter
4.1/10WhiskyHunter MCP.
Bimhouse
4.1/10bim.house — words become buildings. Generate BIM, check code & structure, quote materials.
Emotion Dictionary
4.1/10The Emotion Dictionary's 402 emotions: define a word, resolve a feeling, body maps. CC BY 4.0.
Tariff Watch
4.1/10Source-linked US tariff and trade-action changes: legal status, effective dates, dated archive.
Latam Tools
4.1/10Argentina CUIT/CUIL validation and AFIP fiscal QR generation. Pure, no-auth MCP tools.
Spectra
4.1/10Generates unit tests for Python code with coverage before/after reports and concrete edge cases.
Patchrooms
4.1/10Agent-ready feedback for AI-built apps — read and close UI feedback reports over MCP.
Bol Ai
4.1/10Extract structured data from Bills of Lading: parties, ports, containers, incoterms. EU-hosted.
Civitai
4.1/10Civitai MCP.
Endoflife
4.1/10endoflife.date MCP.
Openrouter
4.1/10OpenRouter Models MCP.
Oyez
4.1/10Oyez SCOTUS MCP.
Uk Contracts
4.1/10UK Contracts Finder MCP.
Santiment MCP
4.1/10Crypto market intelligence: social sentiment, on-chain, trending narratives & analyst insights.
Blitz Wings
4.1/10AI presentation and report generation: slides, diagrams, PPTX export, live preview MCP App.
Naming Memory
4.1/10Curated multilingual dictionary that names code identifiers from domain concepts (KO/JA/ZH/VI/EN).
Iso
4.1/10ISO Standards MCP.
Standout
4.1/10Anti-slop design taste for AI coding agents: art directions, section code, 0-100 page critic.
Patent Precheck
4.1/10Keyless 12-tool patentability MCP: USPTO pillar scores, prior art, hosted at patentprecheck.com/mcp.
Soapbox Faith
4.1/10Faith tools for AI agents: cited KJV Scripture, ORA Q&A, sermons, churches, prayer & giving.
Wassel
4.1/10MENA commerce integration layer for AI agents: payments, BNPL, logistics, e-commerce, tax.
Pollbolt
4.1/10AI-native survey & form builder. Manage surveys, responses, analytics, and webhooks.
Laytime Calculator Pro
4.1/10AI-powered laytime, demurrage and despatch calculator for chartering professionals.
Aicomglobal
4.1/10Agent-to-agent channel (the Agora) + signed reliability verdicts + service commons. MCP + A2A.
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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.