cyberneticlibrary

Integrate Slack as agent messaging

slack-mcp-servermcp_serversetup L20
korotovsky/slack-mcp-server
What it does

Send messages, manage channels, and query Slack workspaces

Best for

Integrating Slack as a messaging and collaboration layer for agents with channel/thread support.

Inputs
  • · channel ID
  • · thread timestamp
  • · message text
  • · user ID
  • · query
Outputs
  • · message send confirmation
  • · channel/user lists
  • · message history
Requires
  • · Slack API
  • · Slack Bot Token
Preconditions
  • · Slack workspace
  • · Bot token with message/channel scopes
  • · Stdio or SSE transport config
Failure modes
  • · Preview/experimental—incomplete support
  • · No pagination in message history
Trust signals
  • · Community examples
  • · Stdio and SSE transport options
  • · Proxy mode support