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.
Owner Protection
3.9/10Data-breach & credential-exposure check for one owner-approved email. $1 USDC on Solana (x402).
Emailkind
3.9/10Classify email addresses and domains by provider and type (business, personal, disposable).
Email Check
3.9/10Email posture for any domain: can it receive mail, can it be spoofed? MX, SPF and DMARC.
MCP Server
3.9/10Build and send interactive email campaigns: studio editing, contacts, sending, results.
Agent Callback Mailbox
3.9/10Paid replay-safe callback inboxes for asynchronous agent tasks with structured MCP results.
Mail Triage
3.9/10Email triage tool powered by AI: classifies your inbox, finds messages that need a reply, and…
Agent Discovery
3.9/10Discover SEC facts, CSV/citation checks, web extraction, mail DNS and x402 conformance scans.
Ascendkit
3.9/10Auth, email, journeys, surveys, webhooks, and analytics for SaaS in one project, one API key.
Agent Email
3.9/10A real inbox for AI agents: send, receive and thread email, behind a prompt-injection firewall.
MCP Server
3.9/10Assess a domain, IP or ASN: mail and DNS security, certificates, routing and a report card.
Agents
3.7/10Persistent AI agents that run 24/7 in your Slack, Telegram, SMS, or email.
Myagentinbox
3.7/10Disposable email inboxes for AI agents. Auto-deletes after 24 hours.
Google Maps MCP Server
3.7/10Local business lead extraction with email + phone enrichment from Google Maps.
Enrow MCP
3.7/10Find and verify professional emails and phone numbers via the Enrow API.
Regex Email Url Validator
3.7/10Regex matching, email/URL format validation, and JSON Schema validation.
1Lookup
3.7/10Verify phone numbers, emails and IPs, and check remaining plan credits.
MCP Server
3.7/10Manage URL redirects, domains, email forwards, and analytics on redirect.pizza.
MCP Server
3.7/10Send email with approval: hosted MCP for email, campaigns, contacts, domains.
Sliq
3.7/10Run LinkedIn and email outbound from Claude, ChatGPT, or any AI agent.
Agent Mail
3.7/10Inboxes, threads, drafts and sending, built for agents.
Creator Discovery
3.7/10Find creators from a seed profile or a brief, and look up their contact email.
Contact
3.7/10Reach a human at Voix: submit the studio contact form and get a reply by email.
Gro
3.7/10Manage subscriptions, customers and email campaigns in your Gro account.
Rattlesnakesbymail
3.7/10Dated, sourced claims about AI crawlers and agents, offered as MCP tools.
Gmail Agent
3.7/10I do everything related to Gmail and productivity
Renkeimap Info
3.7/10日本の業務システムの API・認証・接続方式・稼働状況を、出典と調査日つきで返す読み取り専用 MCP（IT連携マップ）
Oxadash
3.7/10Gérez vos sites, serveurs de jeu, VPS, DNS et mails OxalisHeberg.
Secretsanta
3.7/10Create a Secret Santa party with names, emails, a date, a place, and a budget.
Listar
3.7/10Find verified B2B emails, phone numbers and the decision makers of any company.
Smtpfast
3.7/10Send and receive email, and manage templates, inboxes, contacts and broadcasts.
Idun Blue
3.7/10Build courses, pages, offers and email in an Idun Blue creator workspace.
Siglio MCP
3.7/10MCP server for Siglio. Lets an AI assistant send documents for e-signature by email or text.
Email Server
3.5/10An MCP server that provides email capabilities, hosted on Alpic platform
Node Email MCP 59Eeb419
3.5/10An MCP server that provides email capabilities, hosted on Alpic platform
Test Server
3.5/10An MCP server that provides email capabilities, hosted on Alpic platform
Mailtempo
3.5/10MCP server for MailTempo's public free temporary email inboxes.
Ai Lead Enricher Personalizer
3.5/10Lead enrichment plus AI-written cold emails in one run.
Inboxtrue
3.5/10An MCP server that validates email addresses on demand
Disposable Email MCP
3.5/10Checks if an email/domain is disposable (temp-mail). x402-metered per call.
Send Email MCP
3.3/10Non functional server (yet)
Email MCP
3.1/10Description of my MCP server
Email MCP
3.1/10Description of my MCP server
Email MCP
3.1/10Description of my MCP server
Email MCP
3.1/10Description of my MCP server
Node Email MCP
3.1/10Description of my MCP server
Send Email
3.1/10Description of my MCP server
Email MCP
3.1/10Still WiP
Email MCP
3.1/10Still WiP!
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.