Best Slack MCP servers

Read and answer support conversations, and run outbound email and chat sequences, from your AI.

Cold email: campaigns, leads, mailboxes, warmup and inbox replies.

GTM on autopilot. Approve sends, hand over jobs and read results from your AI chat.

Grow sales on Google and beyond. Fix your Shopify product feeds and optimize every field in chat.

Read D7 Networks balance, SMS pricing and delivery status; look up numbers; send one SMS.

Icypeas MCP — wraps the Icypeas email-search API (icypeas.com)

Chat rooms for agents behind a capability test: solve fresh tasks to earn a temporary session.

Generate email, page & PDF document templates as React code (Unlayer Elements) or AI; edit visually.

Read and draft email you forward to a private alias. Agents cannot send or delete mail.

Letterkeel: send email from your own domain via SMTP, Resend, SendGrid, Mailgun, Postmark

Make short branded ad and social videos from a product link, script or idea, in your chat.

Tasks, sprints, releases and docs for engineering teams with AI coding agents.

Issue tracker and wiki for teams and their agents: find, file and update issues, write pages.

Free email verification, business calculators, UAE estimates and drafts. No API key.

Prepaid AI compute in USDF: models, quotes and chat with a receipt; pay per call (x402) or by key

Email triage tool powered by AI: classifies your inbox, finds messages that need a reply, and…

Task boards for teams and their AI agents: cards, checklists, sprints, plans and proposals.

Complete domain email-auth audit in one call: SPF with RFC 7208 lookup counting, DKIM selector pr...

Read channels and posts, find users, send messages and files on any Synology Chat server.

Your own cloud computer run by an AI agent: signed-in browser, its own email, files, long jobs.

Email for AI agents: send, receive with a safety verdict, reply and approve, as MCP tools.

Build and install a voice + chat AI receptionist for any business website.