Best Slack MCP servers

Scan websites for security vulnerabilities, headers, TLS, and email security.

Official DeepSeek MCP server for chat, completion, model listing, and balance endpoints.

Repurpose content into Twitter threads, LinkedIn posts, Substack notes, email, and video.

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

AEM MCP server. Chat with your AEM instance for content, component, and asset operations.

Thrd MCP: agent email tools for events/threads, safe send/reply, usage, trust and security.

MCP server for transcribing Google Chat voice messages using Groq Whisper API

MCP server for SendGrid's v3 API: email marketing, transactional mail, templates, and analytics.

Wavix telecom MCP: SMS, voice, 2FA, SIP, numbers, 10DLC, CDRs. Account sign-in or API key.

TheSportsDB MCP — sports catalog (teams, players, events)

could-have-been-email MCP — wraps StupidAPIs (keyless — no credential needed)

Emailable MCP — wraps the Emailable email verification API (emailable.com)

Gmail integration with OAuth authentication, message search, batch operations, and Sheets export

MCP server for Microsoft Graph: Outlook mail and calendar, plus read-only Microsoft Teams

38Trust score 38 of 100, Limited

Publish the website you built with AI to a live public URL, straight from chat, with no setup.

Command your AI agents by voice: PTT rooms, channels, direct messages, agent email, memory (mRAG).

Control plane for agent auth walls. Connector 0 handles SMS OTP with US test numbers.

38Trust score 38 of 100, Limited

Generate PDFs and fill PDF forms via AI chat. Works with Claude, ChatGPT, Cursor, and MCP clients.

Domain intel for AI agents: RDAP registration, DNS, email deliverability, tech stack.

Deterministic pre-send lint for SMS/iMessage: silent carrier filtering and segment blowups.

MCP server for Mimecast email security: message queue, held messages, domains, and threats.

MCP server for Check Point Harmony Email & Collaboration (Avanan) email security.