The best MCP servers for team communication — let AI agents read, post, and analyze across Slack, Discord, email, and other messaging platforms.
Browse all Slack & Communication servers →For Slack specifically, check whether a server uses a bot token (`xoxb-`) or a user token (`xoxp-`) before installing — a bot token posts as a visible "App" and only sees channels it's invited to, which is usually the safer and more auditable choice for an AI agent than a token that acts as your own user.
Scope the token to the channels the agent actually needs to read or post in rather than a workspace-wide token, and start with read-only (search/read) permissions before granting post/write scopes.
Community Slack MCP servers are the most installed for reading and posting messages. This page ranks communication servers by real usage.
Yes, with a token you provide. Scope the token to the channels and actions you actually want the agent to have.
Slack, Discord, Telegram, email (IMAP/SMTP), and more — browse the full Communication category for the complete list.