MCP server directory
59888 public MCP servers from the official MCP Registry (26001 from verified domains, 33887 community). Search, filter, copy a setup snippet. Nothing here is installed by cosmic-mcp.
Community listing. Not installed or verified by cosmic-mcp. Check the source before you run anything.
Showing 481 to 510 of 1204
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MailMask
studio.mailmask/mailmask
Email for agents: domains, aliases, IMAP mailboxes, DNS, sending and webhooks via one API key.
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MailProbe
dev.mailprobe/mailprobe
Verify email addresses in real time: deliverability, disposable and role addresses, typo fixes.
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MailSenpai
com.mailsenpai/mcp
MailSenpai: lists, campaigns, DNS & spam checks (74 tools, OAuth, EU). SMTP Senpai: SMTP & API.
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MailSlurp
com.mailslurp/mailslurp
Email and SMS inboxes for AI agents, plus email rendering, inbox placement and sender warmup.
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MailStream
app.mailstream/mailstream
The first MCP server for physical mail: send postcards and letters, manage lists and campaigns.
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MailTester Email Verification
com.mailtester/email-verification
Verify emails (valid/invalid/risky/unknown): MX, SMTP, catch-all, disposable. Free agent key.
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MailTester Ninja
ninja.mailtester/email-verification
Verify email addresses live against their mail server and find work emails. Nothing stored.
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MailVakt
com.mailvakt/mailvakt
Use when email lands in spam: audits SPF, DKIM, DMARC, MX and returns the DNS records to fix it.
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MailValid Email Verification
io.mailvalid/email-verifier
Verify emails: syntax, MX, SMTP mailbox, disposable, role and catch-all checks. Single and bulk.
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MailX Email Deliverability
com.themailx/email-deliverability
Check SPF/DKIM/DMARC/BIMI, blacklists, SMTP/IMAP; DNS lookups; generate email DNS records.
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Mailazy
com.mailazy/mcp
Run email marketing from your AI assistant: contacts, newsletters, automations, behavior emails.
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Mailbox
io.github.psyb0t/mailbox
Scoped IMAP/SMTP access over HTTP and MCP: read, organize, draft, reply and send mail.
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Mailbox MCP
com.mailbox-mcp/mailbox-mcp
Read, send, file and search email in any Gmail, Microsoft 365 or IMAP mailbox, plus its calendar.
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MailboxValidator
io.github.MailboxValidator/mcp-mailboxvalidator
Email validation MCP server using the MailboxValidator API. It can validate email addresses.
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Mailbuttons
com.mailbuttons/mcp-server
Governed email for AI agents: a sandbox inbox to read and send from, human approval to go external.
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Mailcannon
io.github.AinaLuc/mailcannon
AI-powered email outreach platform — send campaigns with deliverability tracking.
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Mailcheck: Email Open & Click Tracker
com.getmailcheck/mailcheck
Email open and click tracker for Gmail, Outlook, Zoho Mail, Roundcube, Hostinger Mail and more.
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Mailcheer
com.mailcheer/mailcheer
Email API + newsletters. 17 MCP tools. OAuth 2.1 PKCE or API key. EU-hosted (Hetzner + SES).
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Mailchimp
io.github.asklokesh/mailchimp-mcp-server
MCP server for Mailchimp API integration
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Mailchimp
io.github.pipeworx-io/mailchimp
Mailchimp MCP Pack — manage audiences, campaigns, and members via Mailchimp Marketing API.
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Mailchimp MCP by InsightfulPipe
com.insightfulpipe/mailchimp
Hosted Mailchimp MCP server for Claude, ChatGPT and Cursor, with each action switched per account.
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Mailchimp MCP by usefulapi
io.usefulapi/mailchimp
Read audiences, members, campaigns and reports; add, update, tag and archive subscribers.
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Mailcycle
email.mailcycle/mailcycle
An email address for your AI agent. Read, wait for and reply to mail, decrypted on your machine.
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MailerCheck MCP by usefulapi
io.usefulapi/mailercheck
Check MailerCheck credits and lists, and run confirmed asynchronous email verification.
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Mailera
app.mailera/mailera
Email for AI agents: read, search and send from your Gmail, Outlook, Yahoo, iCloud or IMAP inbox.
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Mailercloud
io.github.mailercloud-com/mcp-server
AI tools for Mailercloud email marketing: campaigns, contacts, templates, sending & analytics.
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Maileroo
com.maileroo/mcp
Send email, search delivery logs, and manage domains and your Maileroo account.
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Mailfornet
com.mailfornet/mcp
Disposable email inboxes for AI agents: create an address, wait for the OTP or verify link.
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Mailgi
xyz.mailgi/mailgi
Email for AI agents: register a real inbox with no human, then send, receive and read mail.
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Mailing Engineer
com.mailing-engineer/mcp
E-Commerce Email Marketing, AI Newsletter Studio, DNS Audit & AWS SES Deliverability MCP.
Source: the official MCP Registry (registry.modelcontextprotocol.io), refreshed daily, plus public GitHub data. "Verified domain" means the publisher proved the namespace's domain to the registry; it is not a review. Machine-readable: /v1/directory/servers.