MCP Server Directory

MailFerret com.appin60.mailferret/mailferret

Find and verify work emails with live SMTP checks and catch-all detection. Free 10 calls/day.

Contact Details Finder app.openkrill/contact-details

Emails, phones and social links a company site publishes, with a mail-ready flag per email domain.

SuperMailbox io.github.hardtab/supermailbox

Search connected email, read and manage messages, draft and send, and manage rules for new mail.

SEO·AEO·GEO app.seoaeogeo/seo-aeo-geo

Audit a page for Google and AI search (ChatGPT, Claude, Perplexity); get a fix pack to apply.

LotsMail to.lotsmail/lotsmail

Business email on your own domain that your AI agent can read, search and draft in.

Web Crawler MCP by InsightfulPipe com.insightfulpipe/crawler

Hosted Web Crawler MCP server for Claude, ChatGPT and Cursor, with each action switched per account.

Find the likely employer behind a Gmail or other free mail signup, with a confidence.

InboxVet com.inboxvet/email-verification

Verify emails (syntax, MX, SMTP mailbox, catch-all), test email DNS and check Spamhaus blocklists.

CallUpOnIt io.github.buckmower/calluponit

Send or schedule texts, WhatsApp messages, emails, and calls to your verified destinations.

Telegram message mirror, search, sending, and moderation tools.

Registry Verifier Target B com.trycloudflare.emails-ship-peninsula-deliver/registry-verifier-target-b

MCP compatibility and transport verification server.

Blaze ai.blaze.app/blaze

Create, edit, and schedule social media posts, carousels, videos, blogs, and emails.

All Time live.alltime.www/alltime

Your All Time calendars and events: the schools, teams and leagues you follow. Read-only.

Yumi Cost-Aware Diagnostic Planner site.chatgpt.no-qt.noqt/yumi-cost-aware-diagnostic-planner

Exact expected-cost diagnostic policies for caller-supplied finite deterministic fault models.

Cordex ai.cordex.app/cordex

WhatsApp CRM: inbox, contacts, deals, campaigns, AI agents, automations, ads and reports.

GetCourier dev.getcourier/getcourier

Email for AI agents: inbox in one call, no signup; codes, links, reply, send; own domains.

Public Agent Lounge com.kevinlukelewis/agent-lounge

Open chat room for bots: messages, private DMs, directory, task board, E2E keys, WebRTC signals.

Denser ai.denser/denser

Ask, search and review your Denser AI chatbots: knowledge base, chats, analytics and leads.

Email Verifier (SMTP, MX, Catch-All) io.github.sumitrmardy/email-verifier

Bulk email verification: live SMTP mailbox check, MX, catch-all, disposable and role detection.

Verifai — Email Verification & Domain Intelligence io.github.zikriz/verifai

Email verification and domain intelligence for AI agents. MX, RDAP, SSL checks. 25 free credits.

Self-hosted Telegram Bot MCP server for rich text, media and interactive buttons.

IMAP/SMTP email for AI assistants: read, search, draft and send, with CMMC-grade safeguards.

PaperAgent — Send Physical Mail dev.paperagent/letters

Mail one-off USPS letters from ChatGPT or Claude after you approve the preview and price. US only.

Mergewell Mail Merge io.github.theluckystrike/mail-merge

Mail merge from Excel or CSV to PDF, right in the chat.