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.
Hosting
4.1/10Manage turbopress hosting from Claude or ChatGPT: site health, domains, mail, SSL and AI Launch.
Oma
4.1/10Run your Lanetti hosting from your AI agent: domains, DNS, sites, email, apps, backups and billing.
MCP Server
4.1/10Your Atalay business data: sites, domains, mail, invoices, shop, B2B, AI and project requests.
Mailcheck
4.1/10Check how a domain is set up for email and who it is registered with, from public DNS data.
Email for AI agents: send, receive, threads, templates, domains and mailboxes on your own server.
Free Tools
4.1/10Free email verification, business calculators, UAE estimates and drafts. No API key.
Oryah Mail
4.1/10Governed email for agents: Gmail, M365 and IMAP; per-mailbox permissions, send allowlist, audit log
Runlite
4.1/10Puts AI-built websites live with working contact forms and emails every enquiry. No signup to start.
Techspy
4.1/10Detect any website's tech stack, DNS and email security, subdomains and sitemap from your agent.
Mailprobe
4.1/10Verify email addresses in real time: deliverability, disposable and role addresses, typo fixes.
Oakstack
4.1/10Cron jobs with retries, webhook relay, HTML-to-PDF, and transactional email for your app.
Meisa
4.1/10Manage contacts, templates, sequences and broadcasts in your Meisa email account from chat.
Crosswalk
4.1/10The first inbox built for you and AI: mail, newsletters, notes, and crosswalks agents share.
Email Verification
4.1/10Verify email addresses before you send: single, batch (50) and bulk lists (10,000).
Revexos
4.1/10Quote-to-cash tools: parse invoices and POs, match POs to invoices, collection emails, billing math.
Nysa
4.1/10Shared memory for teams that work with AI agents: meetings, email and calendar in one brain.
MCP Server
4.1/10Email marketing: campaigns, audiences, contacts, segments, templates and reports.
Millstead
4.1/10Your website, email list, and bookings, run by Claude or ChatGPT. Invite-only alpha.
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
Stateful email for AI agents — read inboxes, reply in-thread, draft with approval.
MCP Server
3.9/10LinkedIn warm-lead discovery: list leads, find emails, and draft outreach from your AI tools.
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.
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.