MCP Servers / communication / Slack MCP Server

Slack MCP Server

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stdionone27communication

Access Slack DMs, channels, and messages from Claude. Browser token auth - no OAuth needed.

Install
How to run this server
[ { "cmd": "npx -y @jtalk22/slack-mcp", "imports": [] } ]
server path: slack-mcp-server-4
Tools
What this server exposes
slack_health_check
Verify token validity and workspace info
slack_token_status
Token age, health, and cache stats
slack_refresh_tokens
Auto-extract fresh tokens from Chrome
slack_list_conversations
List DMs and channels
slack_conversations_history
Get messages from a channel or DM
slack_get_full_conversation
Export full history with threads
slack_search_messages
Search across workspace
slack_get_thread
Get thread replies
slack_users_info
Get user details
slack_list_users
List workspace users (paginated, 500+)
slack_users_search
Search users by name, display name, or email
slack_conversations_unreads
Get channels/DMs with unread messages
slack_send_message
Send a message to any conversation
slack_add_reaction
Add an emoji reaction to a message
slack_remove_reaction
Remove an emoji reaction from a message
slack_conversations_mark
Mark a conversation as read
slack_workflow_save
Save a workflow profile (channels, kind, retention, cadence) to ~/.slack-mcp-workflows.json
slack_workflows
List saved workflow profiles
slack_smart_search
Semantic search across indexed channels — hosted brain
slack_catch_me_up
AI-summarized digest of unreads + priority threads — hosted brain
slack_triage
Prioritized action queue across channels — hosted brain
Configuration
Environment & auth
authnone
envSLACK_TOKEN
envSLACK_MCP_HTTP_AUTH_TOKEN
Resources
Slack MCP Server — MCP Server · libregistry