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.
Reach
4.1/10Enrich leads, generate prospect lists, and validate emails using Versium's B2B2C identity graph.
Email Deliverability
4.1/10Check SPF/DKIM/DMARC/BIMI, blacklists, SMTP/IMAP; DNS lookups; generate email DNS records.
Mailbox
4.1/10Physical mail API for AI agents. Send letters, certified mail. Sandbox + live keys via MCP.
Raisekit
4.1/10CRM for VC fundraising. Pipeline, Gmail drafts, deck signals, VC intel — from your AI.
Token Of Esteem
4.1/10A press your agent can commission: a funny, personalized printed booklet, mailed as a gift.
Calfeed
4.1/10Turn a written schedule into a live calendar link people subscribe to in Apple, Google, Outlook.
Deckextract
4.1/10Download DocSend and Papermark decks as PDF or PPTX, including email-gated and protected links.
Kajabi
4.1/10Manage Kajabi from any MCP client — products, pages, contacts, offers, emails, analytics.
Mailopoly
4.1/10Your unified inbox — everything that reaches you, understood and actionable from your AI assistant.
Scheduler
4.1/10Group meeting scheduler — rank times everyone's free across Google & Outlook, book Meet/Teams.
Sales Intelligence MCP
4.1/10B2B sales intelligence — company emails, enrichment, lead lists, hiring & funding signals.
MCP Server
4.1/10Remote MCP server bridging AI clients with the PowerDMARC email authentication Platform.
MCP Server
4.1/10Email A/B tests for AI agents: subject lines, managed sends, open/click tracking, and results.
Prism
4.1/10People-enrich: work email + phone, company & domain enrichment. Pay-per-call USDC, no key.
Checkmails
4.1/10Verify email deliverability by SMTP. Catch-all/disposable/role detection. EU-hosted, GDPR-ready.
MCP Server
4.1/10Hosted email for AI agents: create inboxes, send, receive, and reply over MCP with scoped API keys
Postmark
4.1/10Send, track, and manage transactional and bulk email delivery
Resend
4.1/10Send, track, and manage transactional emails at scale
Google Gmail
4.1/10Send, read, organize emails, manage labels, drafts, and filters
Klaviyo
4.1/10Create and manage email campaigns, lists, and marketing automation
Mailersend
4.1/10Send transactional emails, manage domains, and track delivery analytics
Dilli Email Validation Api Server
3.9/10An MCP server that provides tools to validate an email address using Dilli Email Validation API.
Prospecting
3.9/10Autonomous B2B lead prospecting — 36 tools for campaigns, leads, and email outreach.
Relentless Identity
3.9/10Corporate identity finder and email verification. Map real addresses and users to real people.
Data Enrichment
3.9/10Free B2B data enrichment: company lookup, email validation, email patterns, domain info. Zero auth.
Parsebounce
3.9/10Email deliverability monitoring and sending: bounces, complaints, suppression, campaigns.
Email Deliverability
3.9/10Scan and fix a domain's email deliverability (SPF, DKIM, DMARC, MTA-STS, BIMI, DNS blocklists).
Voipms MCP
3.9/10Manage phone numbers, SMS/MMS, voicemail, faxing, and call routing for your VoIP.ms account.
Pulsyai
3.9/10Send SMS, WhatsApp & email, manage contacts and campaigns, and pull reports via Pulseem.
Agent Papers
3.9/10Registry of companies selling AI agents identity, phone, email, addresses, money, legal, insurance
MCP Server
3.9/10LinkedIn warm-lead discovery: list leads, find emails, and draft outreach from your AI tools.
Ascendkit
3.9/10Auth, email, journeys, surveys, webhooks, and analytics for SaaS in one project, one API key.
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.
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.
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!
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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.