Set up Slack in Cline

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Bring Slack into your agent: read channels and threads, post messages and replies, react, and look up users — the team communication layer for agents.

01Configuration

{
  "mcpServers": {
    "slack": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-slack"
      ]
    }
  }
}

Add this to cline_mcp_settings.json. Generated from the captured install method (npx); the mcpServers shape is shared across Claude Desktop, Cursor, Windsurf, Cline, and VS Code.

02Steps

Make sure Cline is installed and up to date.
Open cline_mcp_settings.json and add the block above (merge into any existing mcpServers).
Provide any required API keys/credentials as environment variables.
Restart Cline and confirm Slack’s tools appear.

03Other runtimes

Claude Desktop Cursor Windsurf Continue Goose VS Code OpenAI Agents SDK LangGraph CrewAI

04Provenance

config_sourcegenerated from captured install method

last_checked—

sourcesunknown

Next step

Want agents that act within guardrails? Apex is the live governed-agent product — paced, capped, and fully-logged actions with approvals before anything runs.

Explore Apex →

See also: server page · is it safe? · alternatives