MCP Server MCP

Slack

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

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Install

npx -y @mindstone/[email protected]

Configuration Example

{
  "remotes": [],
  "packages": [
    {
      "registryType": "npm",
      "registryBaseUrl": "https://registry.npmjs.org",
      "identifier": "@mindstone/mcp-server-slack",
      "version": "0.3.0",
      "runtimeHint": "npx",
      "transport": {
        "type": "stdio"
      },
      "environmentVariables": [
        {
          "description": "Path to the host-managed Slack config directory",
          "isRequired": true,
          "format": "filepath",
          "name": "SLACK_CONFIG_PATH"
        },
        {
          "description": "Slack workspace team ID (one process per workspace)",
          "isRequired": true,
          "format": "string",
          "name": "SLACK_TEAM_ID"
        },
        {
          "description": "Slack OAuth Connected App client ID. Only required to refresh a rotating token; saved non-rotating tokens authorize the Slack API without it.",
          "format": "string",
          "name": "SLACK_CLIENT_ID"
        },
        {
          "description": "Slack OAuth Connected App client secret. Only required to refresh a rotating token; saved non-rotating tokens authorize the Slack API without it.",
          "format": "string",
          "isSecret": true,
          "name": "SLACK_CLIENT_SECRET"
        },
        {
          "description": "Set to 1 to disable token refresh on this surface (cloud surface)",
          "format": "string",
          "name": "SLACK_DISABLE_REFRESH"
        },
        {
          "description": "Override the upstream timeout (max 300000ms = 5 min)",
          "format": "number",
          "default": "60000",
          "name": "SLACK_REQUEST_TIMEOUT_MS"
        },
        {
          "description": "WebClient retries on transient failures (0-20). Lower this on cloud to avoid stacking long retry budgets into multi-minute hangs.",
          "format": "number",
          "default": "10",
          "name": "SLACK_MAX_RETRIES"
        },
        {
          "description": "Workspace directory upload_slack_file reads are constrained to (defaults to the system temp dir when unset)",
          "format": "filepath",
          "name": "MCP_WORKSPACE_PATH"
        }
      ]
    }
  ]
}

mcp model-context-protocol npm