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.
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
Abundance Apis
4.1/10Try 26 utility REST APIs keylessly: NAICS classification, IP geo, email validation, currency.
MCP Server
4.1/10Remote MCP server: 19 domain-hygiene and email-auth tools (DNS, SPF, DMARC, DKIM, TLS).
Snov MCP Server
4.1/10Snov.io: lead discovery, email verification, enrichment, CRM, and LinkedIn automation actions.
Diagnostics
4.1/10Check email deliverability for a domain: MX, SPF, DKIM, DMARC, blacklists. Graded, no key.
Mailfixture
4.1/10Test-inbox API for email and SMS: create inboxes, long-poll messages, extract OTPs and links.
MCP Server
4.1/10Email validation for Claude and any MCP client — verdicts with evidence, bulk jobs, refunds.
Read, send and organize email plus calendars on any IMAP/CalDAV mailbox: OVH, iCloud, Fastmail.
Pii Redact
4.1/10Detects and redacts PII (emails, phones, SSNs, names, addresses) from text. $0.02/call via x402.
Cintra Quote
4.1/10Wholesale BOM pricer: send a parts list, get a priced line-by-line quote by email in minutes.
Leads MCP
4.1/10Finds, filters, and verifies local-business leads; every email carries a verification receipt.
Fine Structure
4.1/10Build and host full-stack apps from a prompt, with agents that reach you on WhatsApp and email.
Frazzlecrm
4.1/10CRM + visual automation builder AI agents can drive via MCP: contacts, tags, maps, email/SMS flows.
Agentda
4.1/10Agent-native task management: your AI agent is the interface. Delegate to anyone by email.
Mailstream
4.1/10The first MCP server for physical mail: send postcards and letters, manage lists and campaigns.
MCP Server
4.1/10Create and manage Templated email templates from any MCP client - bring your own model.
Zerm
4.1/10Agent utility belt: memory, locks, webhook inboxes, timers, DNS, email, URL, timezone, cron
Waitlist
4.1/10Create and manage waitlists from your AI agent: page, custom domain, emails, signups, broadcasts.
Inbox Preview
4.1/10Render HTML/.eml emails in real Gmail, Outlook & Yahoo web clients and screenshot them
Cronping
4.1/10Dead-man's-switch heartbeat monitor for agents, cron jobs & workers. Late ping = you get emailed.
MCP Server
4.1/10Operate your EVERJUST workspace: CRM, sales, projects, mail, documents, calendar, invoicing.
Campaignstack
4.1/10Run B2B outreach from your AI agent: 250+ tools for campaigns, leads, LinkedIn and email workflows.
MCP Server
4.1/10Free anonymous website, DNS, email and TLS checks, plus read-only access to your monitors.
Coinslot
4.1/1013 micro-tools for agents: read pages, verify email, convert, validate, diff, extract. AI-operated.
Blueticked
4.1/10Send WhatsApp, SMS and email for South African businesses: contacts, campaigns, templates, webhooks
Screening
4.1/10OFAC and global sanctions screening: crypto addresses, emails, websites, IDs, countries, VPN, geo
Fat Heron
4.1/10MCP control plane for AI developers managing customer mail, DNS, projects, keys, and diagnostics.
Handwritten Cards
4.1/10Send real handwritten cards in the US. A machine writes each one in ink, then we mail it.
MCP Server
4.1/10Generate and publish changelogs, blog posts, release emails, and social posts from your commits.
Busymail
4.1/10Read, organise and send from your existing email accounts. Nothing sends without your approval.
MCP Server
4.1/10Give your AI agent an identity: its own email, webhook, repo, secrets vault, memory and skills.
Google Workspace
4.1/10Permissioned access to Gmail, Drive and Calendar via the user's own Google account
Microsoft 365
4.1/10Permissioned access to Outlook, OneDrive and Teams via the user's own Microsoft account
Email Verification
4.1/10Verify email addresses in real time and find business email addresses with live mailbox checks.
Sausage Trust
4.1/10Email, phone, domain, URL & OFAC verification; phishing and IBAN checks via x402.
Email Verification
4.1/10Verify email addresses and clean lists to improve deliverability and sender reputation.
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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.