MCP Setup Guide

How to Set Up Slack MCP with ClawdBot

Let ClawdBot read Slack channels, summarize discussions, and send messages on your behalf.

Overview

The Slack MCP enables:

Prerequisites

Step 1 — Create a Slack App

  1. Go to api.slack.com/apps
  2. Click "Create New App" → "From scratch"
  3. Name it (e.g., "ClawdBot MCP") and select your workspace

Step 2 — Configure Bot Scopes

Go to "OAuth & Permissions" and add these Bot Token Scopes:

Step 3 — Enable Socket Mode

  1. Go to "Socket Mode" in sidebar
  2. Enable Socket Mode
  3. Generate an App-Level Token with connections:write scope
  4. Copy this token (starts with xapp-)

Step 4 — Install App to Workspace

  1. Go to "Install App" in sidebar
  2. Click "Install to Workspace"
  3. Authorize the requested permissions
  4. Copy the Bot User OAuth Token (starts with xoxb-)

Step 5 — Get IDs

Step 6 — Add Config to ClawdBot

Slack CLI Config json 
{
  "Slack": {
    "command": "npx",
    "args": ["-y", "@modelcontextprotocol/server-slack"],
    "env": {
      "SLACK_BOT_TOKEN": "xoxb-YOUR-BOT-TOKEN",
      "SLACK_APP_TOKEN": "xapp-YOUR-APP-TOKEN",
      "SLACK_TEAM_ID": "T0123456789",
      "SLACK_CHANNEL_IDS": "C0123456789,C9876543210",
      "MCP_MODE": "stdio"
    }
  }
}

Important: Store tokens as environment variables, not plaintext in config.

Step 7 — Verify

  1. Run clawdbot status — Slack MCP should show as "running"
  2. Test: "What's the latest message in #general?"
  3. Test: "Summarize today's discussion in #engineering"

Common Errors

ErrorCauseFix
not_in_channel Bot not added to channel Invite bot: /invite @ClawdBot
invalid_auth Wrong or expired token Regenerate Bot Token, update config
missing_scope Required scope not added Add scope in OAuth & Permissions, reinstall app
channel_not_found Wrong channel ID Verify channel ID in Slack settings

Security Notes

Example Prompts

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