Slack MCP Server
What sets this Slack MCP Server apart is that it supports two auth paths: a conventional Bot Token, or your own session credentials ("stealth" mode) which requires no admin approval to install an App. At many companies that's decisive, since App approval can take weeks.
A typical use is "summarise the last two hours of #incident into a timeline", or having the AI post something it just drafted straight to a channel.
What it does for you
Lets your AI work with Slack — read channels, send messages, search history, handling team comms through chat.
Capabilities
- Read channel messages
- Send messages
- Search history
Once installed, try asking your AI
Say this directly in Claude / Cursor or any client with this server connected
- ›“Summarize today's key discussion in #general”
Install / Connect
# No npm package — install from source.
# See the repo's README for the exact command:
# https://github.com/korotovsky/slack-mcp-serverFollow the official README; env and args vary per server.
Why use it
Good for: people who want the AI to see Slack context but work somewhere App installs aren't casually approved.
Before connecting: stealth mode uses your personal session credentials, so the AI reads messages as you. Don't configure it on a shared machine, and be aware it may conflict with your company's IT policy — check first.
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Frequently Asked Questions
Do I need admin approval?
For Bot Token mode, yes. Stealth mode doesn't need it — but it acts as you personally, so confirm it fits your company policy first.
Can it post, or only read?
Both. If you only want reads, the configuration can restrict it to read-only.