Slack MCP Server

What the code does

We read the source, 20 h ago · rules 3dff92dd89df

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

const child = spawn(process.execPath, [scriptPath, ...scriptArgs], {

        element.innerHTML = formattedText;

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 12 min ago.

claude mcp add slack-mcp-server --transport http https://mcp.revasserlabs.com/oauth/mcp

{
  "mcpServers": {
    "slack-mcp-server": {
      "url": "https://mcp.revasserlabs.com/oauth/mcp"
    }
  }
}

[mcp_servers.slack-mcp-server]
url = "https://mcp.revasserlabs.com/oauth/mcp"

{
  "mcpServers": {
    "slack-mcp-server": {
      "url": "https://mcp.revasserlabs.com/oauth/mcp"
    }
  }
}

{
  "mcpServers": {
    "slack-mcp-server": {
      "url": "https://mcp.revasserlabs.com/oauth/mcp"
    }
  }
}

This one needs environment variables set before it will start: SLACK_TOKEN (Slack xoxc- token from browser session), SLACK_COOKIE (Slack xoxd- cookie from browser session). The author declared them in the registry entry; get the values from the project itself.

This endpoint answered with an authorization challenge. The server is running, and it signs you in through your browser: there is no API key to paste.

Endpoints