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.
Ratebook
4.5/10Open MCP server for US electricity tariffs: real rate lookup, bill estimates, and when to charge.
MCP Server
4.5/10Ask any SQL database in natural language. Agent explores schema, writes SQL, self-corrects.
Chembl MCP Server
4.5/10Link compounds to protein targets, rank bioactivity, and look up drug mechanisms and indications.
Evals MCP Server
4.5/10Author verifiable eval records through a draft→review→revise→submit loop with enforced graders.
Gnomad Genetics MCP Server
4.5/10Look up allele frequencies by ancestry, gene constraint, variants, and coverage over gnomAD.
Paleobiology MCP Server
4.5/10Search fossil occurrences, taxon ranges, diversity through deep time, and the geologic time scale.
Toolkit MCP Server
4.5/10Generate IDs, QR codes, and hashes, encode values, geolocate IPs, plus gated host diagnostics.
Uniprot MCP Server
4.5/10Protein research over UniProtKB — search by function, fetch curated records, map IDs, proteomes.
Waxseal
4.5/10Ed25519 identity for AI agents. Verify seals, sign documents, gate actions with approvals.
Agent Audit
4.5/10Turn Lighthouse audits into coding-agent fix packs for Claude Code, Cursor, and Copilot.
Aikount MCP
4.5/10Contabilidad española con IA: facturas, gastos por OCR, conciliación bancaria y Modelo 303.
Shadow MCP
4.5/10Local MCP server that inventories and risk-grades MCP servers configured on this machine.
Outlook Personal MCP
4.5/10Full-control MCP server for a personal Outlook.com mailbox and calendar (Microsoft Graph).
Memkeeper
4.5/10Local-first memory for AI agents: on-device hybrid retrieval over a single SQLite file.
Cloudcostsmcp
4.5/10Anchor AI FinOps to real, live cloud pricing — AWS, GCP & Azure public and enterprise rates.
Domainintel MCP
4.5/10Domain intelligence for agents: WHOIS, DNS, SSL/TLS, security headers, reputation, subdomains.
Sports
4.5/10Live football scores, match summaries, and fan clip links from Vublox. No API key required.
Trackman MCP
4.5/10Fetch your Trackman Golf stats (handicap, rounds, shots, club gapping) as MCP tools.
Locksmith
4.5/10Lints PostgreSQL migrations for dangerous locking operations and suggests safe rewrites.
Velesdb Memory
4.5/10Offline agentic memory: remember/recall/relate/forget/why over a fused vector+graph+columnar engine
Icloud MCP
4.5/10Read-only-by-default MCP server for iCloud mail, calendar, and contacts (IMAP/CalDAV/CardDAV).
Osint Agent Skills
4.5/10OSINT MCP server — 23 tools: DNS, WHOIS, Shodan, breaches, GEOINT, crypto. Works with Claude Code.
Iaiops
4.5/10Governed OT data tap: 14 field protocols + cross-protocol RCA brain; audit + MOC gating.
Loadbench
4.5/10MCP server for structural load & stability math: tipping, support reactions, beam checks.
Twscrape Twitter MCP
4.5/10Read-only X/Twitter MCP: posts, threads, replies, search via twscrape. No API key.
Youtube Organic MCP
4.5/10YouTube organic analytics — channel stats, video performance, watch time & audience insights.
Cz Eli MCP
4.5/10MCP server for Czech legislation (e-Sbirka SPARQL) with ELI and verifiable citations.
Dk Eli MCP
4.5/10MCP server for Danish legislation (Retsinformation) with native ELI and verifiable citations.
Hr Eli MCP
4.5/10MCP server for Croatian legislation (Narodne novine) with European ELI and verifiable citations.
Lt Eli MCP
4.5/10MCP server for Lithuanian legislation (TAR via data.gov.lt) with verifiable citations.
Openocd MCP
4.5/10Debug microcontrollers via OpenOCD: flash, breakpoints, memory, registers and variables.
Agent Firewall MCP
4.5/10Input/output safety for AI agents: prompt-injection scan, URL/IP check, pwned passwords, PII scan.
Package Guard MCP
4.5/10Supply-chain guard for AI coding agents: verify packages, check vulns/malware, detect typosquats.
Payment Guard MCP
4.5/10Pre-send risk check for AI agents that move money — screen an address or payment URL before sending.
Web Tools MCP
4.5/10Deterministic web tools for AI agents: read URLs, metadata, email, scrape, RSS, DNS, SSL, HTTP.
Recapfy
4.5/10Ask about a YouTube video or fetch its transcript. Paid per call in USDC on Solana via x402.
Guarded Whatsapp MCP
4.5/10Security gate for agent-driven WhatsApp: allowlist, secret scan, rate limit, audit log.
Mosaic MCP
4.5/10Pre-clinical drug discovery intelligence — targets, compounds, patents, trials, whitespace
Websitetoolbox MCP
4.5/10Community forum management — posts, users, search, and moderation via the Website Toolbox API.
MCP Google Ads
4.5/10Multi-account Google Ads MCP: campaigns, keywords, search terms, and ad performance.
MCP Search Console
4.5/10Multi-account Google Search Console MCP: analytics, URL inspection, sitemaps across named accounts.
Dear Agent
4.5/10Your AI agent keeps your diary for you. Local-first, private, works in any agent.
Nyambot MCP
4.5/10L'administration française pour vos agents IA : communes, géocodage, risques, DPE.
Steam Games MCP
4.5/10Steam store/game data (no key) plus player profiles, libraries and achievements (Steam Web API).
Bitcoin MCP Server
4.5/10Honest monetary data for AI agents. Inflation, M2 vs CPI, Bitcoin vs dollar. No spin.
Hermes Action Bridge
4.5/10Delegate real-world actions from Claude Code, Codex, and other agents to Hermes Agent.
Tripwire
4.5/10MCP for Roblox Studio and Open Cloud: drive Studio, run headless tests, and review game security.
Igpsport MCP
4.5/10iGPSport cycling data with training metrics (NP/IF/TSS/CTL/ATL/TSB) and workout generation
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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.