How do I install Slack?

Pick a client above and copy the generated config. Cursor and VS Code also have a deep link when the server can run locally or remotely.

No. Registry-listed is not the same as vendor-official. Read the methodology for the difference.

How is the trust score calculated?

This listing scores 50 (Fair). The formula is published on the methodology page.

MCPpedia

Slack MCP Server — Install for Claude, Cursor & VS Code | MCPpedia

Slack MCP Server

Name: Slack MCP Server
Author: mindstone

Slack MCP server: channels, messages, threads, reactions, users, files, and scheduled messages

Tools Versions Alternatives

Registrymindstone

50Fair

Install

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mindstone-slack": {
      "command": "npx",
      "args": [
        "-y",
        "@mindstone/mcp-server-slack@0.3.0"
      ],
      "env": {
        "SLACK_CONFIG_PATH": "",
        "SLACK_TEAM_ID": "",
        "SLACK_CLIENT_ID": "",
        "SLACK_CLIENT_SECRET": "YOUR_SLACK_CLIENT_SECRET",
        "SLACK_DISABLE_REFRESH": "",
        "SLACK_REQUEST_TIMEOUT_MS": "60000",
        "SLACK_MAX_RETRIES": "10",
        "MCP_WORKSPACE_PATH": ""
      }
    }
  }
}

Install guide

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Environment

Name	Required	Notes
SLACK_CONFIG_PATH	Yes	Path to the host-managed Slack config directory
SLACK_TEAM_ID	Yes	Slack workspace team ID (one process per workspace)
SLACK_CLIENT_ID	No	Slack OAuth Connected App client ID. Only required to refresh a rotating token; saved non-rotating tokens authorize the Slack API without it.
SLACK_CLIENT_SECRET	No	Slack OAuth Connected App client secret. Only required to refresh a rotating token; saved non-rotating tokens authorize the Slack API without it. Secret.
SLACK_DISABLE_REFRESH	No	Set to 1 to disable token refresh on this surface (cloud surface)
SLACK_REQUEST_TIMEOUT_MS	No	Override the upstream timeout (max 300000ms = 5 min)
SLACK_MAX_RETRIES	No	WebClient retries on transient failures (0-20). Lower this on cloud to avoid stacking long retry budgets into multi-minute hangs.
MCP_WORKSPACE_PATH	No	Workspace directory upload_slack_file reads are constrained to (defaults to the system temp dir when unset)

Slack MCP Server

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