MCP Servers 450
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Leaderra
GTM data layer for AI agents: find scored B2B leads free, reveal verified email+mobile, audit ads.

Sendpulse
MCP server for SendPulse API — mailing lists, email sending, statistics.
Temp Mail
Disposable email inboxes for AI agents — read messages and verification codes.

Send16
Email for AI agents: send mail, manage contacts, automations & webhooks.
Postfleet
Give an AI agent its own email address: send, reply, read, and wait for mail.

Dropcoin Validation
EU compliance checks for AI agents: sanctions, company, VAT ID, IBAN, email.
LayerCall
Score an IP, email, phone, domain or device for fraud in one call, with the signals behind it.

Resent
Transactional email for AI agents: templates, domain verify, and sends.

X402tools
10 pay-per-call tools for AI agents: QR, screenshots, DNS, OCR, PDF, email & more.
mcp
Email for AI agents: inboxes, send/reply/forward, search, threads, webhooks — 21 SentVia tools.

Vanmoose Server
197 MCP tools from 74 developer APIs — screenshots, email, NLP, WHOIS, QR, PDF, and more.
AgentMail
Email inboxes for AI agents: send, receive, reply, search, and manage threaded email over MCP.
Siima eSIM
Search travel eSIM plans for 150+ countries and buy via Stripe link; eSIM QR delivered by email.
Tinysend
Email for agents: newsletters, subscribers, contacts, broadcasts.

Agent Utility MCP
Stop your agent before it runs rm -rf /etc or emails your .env.
Agent Papers
Registry of companies selling AI agents identity, phone, email, addresses, money, legal, insurance
SendFast
Agent-native marketing email: draft, edit, screenshot, and send from your verified domain.
Idig Dns
Professional DNS diagnostics: 14 tools for DNS, DNSSEC, email security, SSL, and propagation.
Server
Email validation for Claude and any MCP client — verdicts with evidence, bulk jobs, refunds.
Ready APIs
135 MCP tools: geo, email, phone, company, DNS, FX, equities, weather, tax, econ, intel — one key.

Mailwarden
Gmail MCP server for email triage: search, labels, archive, trash, unsubscribe, snooze.

Microsoft Outlook
Microsoft Outlook (mail) MCP server — read, search, and send email through Microsoft Graph.