MCP Servers 450

Send16

io.github.spruikco/send16-mcp

B✓Verified

Email for AI agents: send mail, manage contacts, automations & webhooks.

Disposable email inboxes for AI agents — read messages and verification codes.

Read, send, organize, watch email on any IMAP mailbox: Gmail, iCloud, OVH, Zoho, Fastmail + CalDAV.

KeyID

io.github.KeyID-AI/keyid

B✓Verified

Signup sessions, browser continuity, email, SMS, and OTP/TOTP infrastructure for AI agents.

X402 Osint

io.github.JienWeng/x402-osint

C✓Verified

Pay-per-call OSINT for AI agents: username + email recon in USDC on Base via x402.

Corporate identity finder and email verification.

Whoisxmlapi

io.github.whois-api-llc/mcp-whoisxmlapi

B✓Verified

32 WHOIS, DNS, IP, threat intelligence, email, and bulk tools for AI agents via WhoisXML API.

Postari

io.github.wilmendezofficial/postari

B✓Verified

Email marketing y transaccional AI-native: campañas, correos 1-a-1, contactos, flujos y métricas.

Resend Server

io.github.friendlygeorge/resend-mcp-server

B✓Verified

MCP server for Resend — transactional email API for AI assistants...

Validator Ai

io.github.CSOAI-ORG/validator-ai-mcp

B✓Verified

AI-powered validator ai MCP server for agents.

Netintel

io.github.kjgueye/netintel-mcp

B✓Verified

MCP server for NetIntel — DNS, SSL, WHOIS, email security, OSINT via x402 micropayments

Manage Loops contacts, mailing lists, and transactional/event emails.

B2B sales intelligence — company emails, enrichment, lead lists, hiring & funding signals.

Send transactional email from your editor — describe the event, Sendable writes and sends it.

Remote MCP server bridging AI clients with the PowerDMARC email authentication Platform.

26 quant tools.

Findymail

io.github.pipeworx-io/findymail

B✓Verified

Findymail MCP — B2B email finder & reverse-email lookup (findymail.com)

FabTally Valid

io.github.zvmzaretsky/validation-suite

B✓Verified

Validation suite: EU VAT (VIES), IBAN mod-97, email (MX+disposable), geo place lookup, VIN decode.