slack-mcp-server MCP — Casos de uso, Instalar & Demo ao vivo

Por que usar

Principais recursos

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

Demo ao vivo

Como fica na prática

slack-mcp-server-2.replay ▶ pronto

0/0

Instalar

Escolha seu cliente

~/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"
      ]
    }
  }
}

Abra Claude Desktop → Settings → Developer → Edit Config. Reinicie após salvar.

~/.cursor/mcp.json · .cursor/mcp.json

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

Cursor usa o mesmo esquema mcpServers que o Claude Desktop. Config de projeto vence a global.

VS Code → Cline → MCP Servers → Edit

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

Clique no ícone MCP Servers na barra lateral do Cline, depois "Edit Configuration".

~/.codeium/windsurf/mcp_config.json

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

Mesmo formato do Claude Desktop. Reinicie o Windsurf para aplicar.

~/.continue/config.json

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

O Continue usa um array de objetos de servidor em vez de um map.

~/.config/zed/settings.json

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

Adicione em context_servers. Zed recarrega automaticamente ao salvar.

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

Uma linha só. Verifique com claude mcp list. Remova com claude mcp remove.

Casos de uso

Usos do mundo real: slack-mcp-server

How to catch up on unread Slack messages with AI assistance

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

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

Pré-requisitos

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

Fluxo

Get unread summary

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

→ 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.✓ Copiado

→ Thread content with action items extracted
Mark as read

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

→ Channels marked as read

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

Armadilhas

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

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

Pré-requisitos

Slack token configured — Set SLACK_TOKEN environment variable

Fluxo

Search messages

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

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

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

→ Complete thread with all replies

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

Armadilhas

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

Combinações

Combine com outros MCPs para 10× de alavancagem

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.✓ Copiado

slack-mcp-server-2 + filesystem

Export Slack conversations to files for documentation

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

Ferramentas

O que este MCP expõe

Ferramenta	Entradas	Quando chamar	Custo
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

Custo e limites

O que custa rodar

Cota de API: Slack API rate limits: varies by method, typically 50+ req/min for most endpoints
Tokens por chamada: 300–2000 tokens per tool call
Monetário: Free — Slack API is free. Enterprise features require Slack Enterprise Grid.
Dica: Use conversations_unreads for efficient catch-up instead of reading every channel individually.

Segurança

Permissões, segredos, alcance

Armazenamento de credenciais: Slack tokens in SLACK_TOKEN environment variable. For stealth mode, extract xoxc + xoxd from browser.

Saída de dados: 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.

Solução de problemas

Erros comuns e correções

401 Invalid auth

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

Verificar: 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.

Verificar: channels_list

Rate limited

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

Verificar: Check server logs for retry messages

Alternativas

slack-mcp-server vs. outros

Alternativa	Quando usar	Troca
Discord MCP	Your team uses Discord instead of Slack	Different platform, similar coverage

Mais

Recursos

📖 Leia o README oficial no GitHub

🐙 Ver issues abertas

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