Slack MCP Server
A feature-rich MCP server for Slack that enables AI agents to read messages, DMs, group DMs, search channels, manage user groups, and post messages with smart history pagination, supporting both stealth (no-bot) and OAuth modes.
Best When
You want an AI assistant to have deep, read-first access to Slack workspace context — history, DMs, channels — with optional write capability controlled by explicit agent permissions.
Avoid When
You need a traditional Slack bot with event subscriptions, slash commands, and webhook-driven interactions rather than a pull-based MCP interface.
Use Cases
- • Aggregate and summarize unread messages across all Slack channels with priority sorting for AI-assisted triage
- • Search message history with date-range or count-based pagination for AI-powered workspace analytics
- • Enable AI assistants to respond to DMs and group DMs on behalf of users within Claude or other MCP clients
- • Manage Slack user groups (subteams) programmatically — create, update, and manage membership via AI agent
- • Monitor and analyze Slack conversations in FedRAMP-compliant GovSlack workspaces
Not For
- • Fully automated bots that post without human oversight — posting is disabled by default for safety
- • Teams needing Slack workflow builder integration or slash command handling
- • Scenarios requiring compliance-grade audit logging of all AI-Slack interactions
Alternatives
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Scores are editorial opinions as of 2026-03-01.