slack-mcp-server MCP — Anwendungsfälle, Installieren & Live-Demo

Warum nutzen

Hauptfunktionen

15 MCP tools for comprehensive Slack workspace interaction
Stealth mode — works without additional permission grants using browser tokens
Unread message fetching with priority sorting and @mention filtering
Enterprise and GovSlack workspace support
Multiple transports: Stdio, SSE, and HTTP with proxy configuration

Live-Demo

In der Praxis

slack-mcp-server-2.replay ▶ bereit

0/0

Installieren

Wählen Sie Ihren Client

~/Library/Application Support/Claude/claude_desktop_config.json · Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "slack-mcp-server-2": {
      "command": "TODO",
      "args": [
        "See README: https://github.com/korotovsky/slack-mcp-server"
      ]
    }
  }
}

Öffne Claude Desktop → Settings → Developer → Edit Config. Nach dem Speichern neu starten.

~/.cursor/mcp.json · .cursor/mcp.json

{
  "mcpServers": {
    "slack-mcp-server-2": {
      "command": "TODO",
      "args": [
        "See README: https://github.com/korotovsky/slack-mcp-server"
      ]
    }
  }
}

Cursor nutzt das gleiche mcpServers-Schema wie Claude Desktop. Projektkonfiguration schlägt die globale.

VS Code → Cline → MCP Servers → Edit

{
  "mcpServers": {
    "slack-mcp-server-2": {
      "command": "TODO",
      "args": [
        "See README: https://github.com/korotovsky/slack-mcp-server"
      ]
    }
  }
}

Klicken Sie auf das MCP-Servers-Symbol in der Cline-Seitenleiste, dann "Edit Configuration".

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "slack-mcp-server-2": {
      "command": "TODO",
      "args": [
        "See README: https://github.com/korotovsky/slack-mcp-server"
      ]
    }
  }
}

Gleiche Struktur wie Claude Desktop. Windsurf neu starten zum Übernehmen.

~/.continue/config.json

{
  "mcpServers": [
    {
      "name": "slack-mcp-server-2",
      "command": "TODO",
      "args": [
        "See README: https://github.com/korotovsky/slack-mcp-server"
      ]
    }
  ]
}

Continue nutzt ein Array von Serverobjekten statt einer Map.

~/.config/zed/settings.json

{
  "context_servers": {
    "slack-mcp-server-2": {
      "command": {
        "path": "TODO",
        "args": [
          "See README: https://github.com/korotovsky/slack-mcp-server"
        ]
      }
    }
  }
}

In context_servers hinzufügen. Zed lädt beim Speichern neu.

claude mcp add slack-mcp-server-2 -- TODO 'See README: https://github.com/korotovsky/slack-mcp-server'

Einzeiler. Prüfen mit claude mcp list. Entfernen mit claude mcp remove.

Anwendungsfälle

Praxisnahe Nutzung: slack-mcp-server

How to catch up on unread Slack messages with AI assistance

👤 Busy professionals drowning in Slack notifications ⏱ ~10 min beginner

Wann einsetzen: Monday morning or after PTO — you have hundreds of unread messages across channels.

Voraussetzungen

Slack token (xoxc/xoxd for stealth, xoxp for OAuth) — Extract from browser cookies or create via Slack app settings

Ablauf

Get unread summary

Show me all my unread Slack messages, prioritized by @mentions first, then channels with most activity.✓ Kopiert

→ Prioritized list of unread channels with message counts and highlights
Read key threads

Show me the full thread for the @mention in #engineering. Summarize what they need from me.✓ Kopiert

→ Thread content with action items extracted
Mark as read

Mark #random and #general as read — I'll skip those.✓ Kopiert

→ Channels marked as read

Ergebnis: Inbox zero on Slack in 10 minutes instead of 30.

Fallstricke

Stealth mode tokens expire periodically — Re-extract xoxc/xoxd tokens from your browser when they expire

Search Slack history for decisions and context

👤 Anyone who needs to find a specific conversation or decision from the past ⏱ ~5 min beginner

Wann einsetzen: You need to find that one Slack message where a decision was made weeks ago.

Voraussetzungen

Slack token configured — Set SLACK_TOKEN environment variable

Ablauf

Search messages

Search Slack for messages about 'API redesign' from the last month in engineering channels.✓ Kopiert

→ Matching messages with timestamps, authors, and context
Get the full thread

Show me the full thread where the final decision was made.✓ Kopiert

→ Complete thread with all replies

Ergebnis: Found the specific conversation with the context you needed.

Fallstricke

Search only works within channels you have access to — If a message was in a private channel, you need to be a member

Kombinationen

Mit anderen MCPs für 10-fache Wirkung

slack-mcp-server-2 + github

Cross-reference Slack discussions with GitHub PRs and issues

Search Slack for mentions of PR #142, then get the PR details from GitHub and summarize the full context.✓ Kopiert

slack-mcp-server-2 + filesystem

Export Slack conversations to files for documentation

Export the full #architecture-decisions channel history to ~/docs/architecture-decisions.md.✓ Kopiert

Werkzeuge

Was dieses MCP bereitstellt

Werkzeug	Eingaben	Wann aufrufen	Kosten
conversations_history	channel: str, limit?: int	Fetch messages from a channel or DM	1 Slack API call
conversations_unreads	none	Get all unread messages across channels	Multiple Slack API calls
conversations_search_messages	query: str, filters?	Search messages across workspace	1 Slack API call
conversations_replies	channel: str, ts: str	Get thread replies	1 Slack API call
channels_list	none	List workspace channels	1 Slack API call
users_search	query: str	Find users by name or email	1 Slack API call
conversations_mark	channel: str, ts: str	Mark a channel as read (disabled by default)	1 Slack API call

Kosten & Limits

Was der Betrieb kostet

API-Kontingent: Slack API rate limits: varies by method, typically 50+ req/min for most endpoints
Tokens pro Aufruf: 300–2000 tokens per tool call
Kosten in €: Free — Slack API is free. Enterprise features require Slack Enterprise Grid.
Tipp: Use conversations_unreads for efficient catch-up instead of reading every channel individually.

Sicherheit

Rechte, Secrets, Reichweite

Credential-Speicherung: Slack tokens in SLACK_TOKEN environment variable. For stealth mode, extract xoxc + xoxd from browser.

Datenabfluss: All calls to Slack API (api.slack.com). Supports proxy configuration.

Stealth mode uses browser session tokens which may violate Slack's ToS in enterprise environments.
Write operations (add_message, reactions) are disabled by default. Enable explicitly via env vars.
Messages may contain sensitive company data. Ensure your AI processing is appropriately scoped.

Fehlerbehebung

Häufige Fehler und Lösungen

401 Invalid auth

Your Slack token expired or is invalid. Re-extract browser tokens (stealth) or regenerate the OAuth/bot token.

Prüfen: curl -H 'Authorization: Bearer $SLACK_TOKEN' https://slack.com/api/auth.test

Channel not found

Use the channel name with # (e.g., #general) or the channel ID. Run channels_list to find the correct identifier.

Prüfen: channels_list

Rate limited

Slack has per-method rate limits. The server handles backoff automatically, but reduce concurrent requests.

Prüfen: Check server logs for retry messages

Alternativen

slack-mcp-server vs. andere

Alternative	Wann stattdessen	Kompromiss
Discord MCP	Your team uses Discord instead of Slack	Different platform, similar coverage

Mehr

Ressourcen

📖 Offizielle README auf GitHub lesen

🐙 Offene Issues ansehen

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