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.
Failmodes
4.7/10MCP server for the Fail Modes taxonomy — a knowledge base of AI system failure modes
Stillos Notary MCP
4.7/10Ed25519-signed verdicts resolved against real ground truth. Free claim/verify; paid bonded dispute.
Qencode
4.7/10Create amazing video experiences with the Qencode API, straight from your AI assistant.
Packageguard
4.7/10x402-gated safety checker for npm/PyPI packages before you npm install / pip install.
Arsenal Decision Engine
4.7/10R_net LP risk evaluator for DeFAI agents. IL + Breakeven Corridor O(1). L402 Lightning paywall.
Verity
4.7/10Real-time social media and prediction market integrity layer for traders, funds, and quant desks.
Jktjj MCP
4.7/10BJJ gym, coach, event, and city data for AI agents. Free base tools, x402-paid premium.
MCP Server
4.7/10Connect AI agents to iTechSmart UAIO, ProofLink verification, and autonomous IT operations.
Ckg Nvidia Ai
4.7/10NVIDIA AI knowledge graphs — 20 domains. 4x F1, 11x fewer tokens, SHA-256 provenance. MCP-native.
Cryptodata Api
4.7/10Crypto MCP with 21 tools for market data, DeFi, analytics, and sentiment. Post-paid USDC billing.
Baton
4.7/10Hand off AI work with a signed Verification Receipt — an independent verifier proves it runs.
Arc Ledger Tax Tools
4.7/10Enrolled Agent tax tools: IRS notices, FBAR, LLC vs S-Corp, quarterly estimates & more.
Dali
4.7/10The prediction MCP — score your prompt before you generate, so you never waste a credit.
Skanfirmy
4.7/10Weryfikacja polskich firm po NIP/KRS i unijnego VAT (VIES) z oficjalnych rejestrów UE.
On Demand Books
4.7/10Find personalized puzzle books by first name from a 100,000+ title Shopify catalog.
Scamcheck MCP Server
4.7/10Scan suspicious messages, URLs, and text for scams with AI. Free tier - no API key required.
MCP Server
4.7/10Visual email & layout builder that turns AI assistants into a Temway authoring studio.
Zoom Tasks
4.7/10Zoom Tasks server for creating, updating, assigning, and synchronizing task workflows.
Stillos Kya
4.7/10KYA: fail-closed CLEAR/REVIEW/BLOCK counterparty screen (OFAC + on-chain), signed receipt.
Air Quality MCP
4.7/10Stay ahead of pollution with our Air Quality MCP. Access real-time air quality data, including
Crypto Prices MCP
4.7/10Unlock the power of real-time cryptocurrency data with our Crypto Price Insights MCP server.
Dictionary Lexicon MCP
4.7/10Discover the true meaning of any English word with our Dictionary Lexicon MCP. Whether you're a
Dns Lookup MCP
4.7/10Unlock the power of DNS lookups with our DNS Lookup service using Google DNS-over-HTTPS. Whether
Earthquake Monitor MCP
4.7/10Our Earthquake Monitor harnesses the USGS earthquake feed to provide you with up-to-the-minute
Github Public Repos MCP
4.7/10Dive into the world of open-source with the GitHub Repo Explorer! Utilize the powerful GitHub
Hacker News MCP
4.7/10Dive into the latest and greatest from the tech world with our Hacker News MCP server.
Ip Geolocation MCP
4.7/10Unlock the power of IP geolocation with our tool! Whether you're a developer needing location data
Name Demographics MCP
4.7/10Harness the power of names with our Name Demographics MCP. Using Agify, Genderize, and Nationalize
Npm Package Info MCP
4.7/10Dive into the world of npm with our NPM Package Info MCP. Access crucial metadata about any npm
Open Food Facts MCP
4.7/10Unlock the power of food transparency with our Open Food Facts MCP server. Easily look up any food
Sunrise Sunset MCP
4.7/10Discover the magic of day and night with our Sunrise & Sunset API. Get accurate sunrise, sunset,
Uk Postcodes MCP
4.7/10Access comprehensive UK postcode information effortlessly with our geocoding services. Whether you
World Bank Indicators MCP
4.7/10Dive into the wealth of information provided by the World Bank with our zero-auth API. Instantly
Agent Hub
4.7/10Complaint registry for paid agent transactions - check a seller before you pay, or file your own.
Japan Real Estate MCP
4.7/10Japan real estate transaction prices and official land values (MLIT data) by area, year, and type.
Agent Compute Ledger
4.7/10Compute-is-carbon energy/carbon ledger for agent work with Landauer-limit validation.
Agent Escrow
4.7/10Trustless escrow & settlement for A2A transactions: exactly-once state machine, frozen fees, tamper-
Agent Metering
4.7/10Usage metering + SLA accounting for agent services (the meter behind x402 micropayments).
Agent Provenance
4.7/10Genesis certificates, lineage, and cascading recalls: birth certificates + bloodlines for the agent
Agent Trust Oracle
4.7/10Decay-weighted reputation + tamper-evident trust attestations for the agent economy.
Regulatory Radar
4.7/10California, US, and global climate compliance scans with source-linked deadlines.
Smartscale
4.7/10Deterministic CR80 pixel-geometry scaler. Callers supply the card and object pixel geometry; this MC
Provenio
4.7/10Art provenance intelligence — 282K-node knowledge graph with cited answers and honest gaps.
MCP Server
4.7/10PDF & document automation via the PDF4me API — convert, OCR, extract, edit, secure.
Domain Intel MCP
4.7/10Domain intel for AI agents: RDAP registration, DNS, email deliverability, tech stack.
Security Intel MCP
4.7/10CVE lookups (NVD) and dependency-manifest audits (OSV) for AI agents. No API keys.
Brafinder
4.7/10Neutral cross-brand bra-size translation and a live in-stock bra catalog by size.
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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.