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Summarize & reply to Slack channel messages with Claude AI assistant

n8nn8n8 modulesv1.0
SlackOpenAI

What It Does Mello is a Claude-powered Slack assistant that helps you stay on top of unread messages across all your channels. It: - Summarizes conversations contextually using Claude AI. - Generates reply suggestions and sends them as private (ephemeral) Slack messages. - Lets you respond instantly with one-click AI-suggested replies. Perfect for busy teams, founders, and anyone looking to reduce Slack noise and save hours each week. --- πŸ”§ Setup Instructions 1. Create a Slac

At a glance

Summarize & reply to Slack channel messages with Claude AI assistant is a ready-made n8n workflow you import as a workflow JSON file β€” no build required. It connects Slack, OpenAI. It's free to download. Follow the 5-step import below to go live in minutes.

Platform
n8n
Connects
Slack, OpenAI
Modules
8
Price
Free
Version
v1.0
Summarize & reply to Slack channel messages with Claude AI assistant workflow diagram

About this workflow

What It Does Mello is a Claude-powered Slack assistant that helps you stay on top of unread messages across all your channels. It: - Summarizes conversations contextually using Claude AI. - Generates reply suggestions and sends them as private (ephemeral) Slack messages. - Lets you respond instantly with one-click AI-suggested replies. Perfect for busy teams, founders, and anyone looking to reduce Slack noise and save hours each week. --- πŸ”§ Setup Instructions 1. Create a Slack App - Go to Slack API β†’ Your Apps - Click Create New App and set it up for your workspace - Under OAuth & Permissions, add: - Bot Token Scopes: commands, chat:write, channels:history, users:read - User Token Scopes: channels:history, chat:write - Enable Interactivity, and point the Request URL to your n8n webhook (e.g. /slash-summarize) 2. Add Claude API - Get an API key from Claude (Anthropic) - In n8n, set up the Claude API credential (or switch to OpenAI) 3. Import This Workflow - Go to your n8n instance, click Import, and paste this template - Update any placeholders (Slack app, Claude key, webhook URLs) - Follow the inline sticky notes for guidance 4. Test It - Type /summarize in any Slack channel - Mello will fetch unread messages, summarize them, and show reply buttons in a private message ⏱ Setup time: 10 minutes --- πŸ›  Workflow Highlights - Slash command trigger (/summarize) - Slack API integration to fetch messages - Claude AI for contextual summaries - Reply suggestions with smart buttons - Private Slack delivery (ephemeral messages) - Designed to be easily extended (e.g. add support for OpenAI, custom storage) --- πŸ”’ Note This is a lite preview of the full Mello workflow. βœ… The full version includes: - Slack reply buttons with thread context - Full OAuth flow with token storage - MongoDB integration - Custom Claude/OpenAI configuration - Hosted version with onboarding, branding & support πŸ’‘ Want access to the complete version? πŸ“© Email nina@baloon.dev

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How to import this n8n workflow

  1. 1

    Download the workflow JSON file after purchase.

  2. 2

    Open n8n β†’ click the menu β†’ Import from File.

  3. 3

    Select the downloaded JSON and import.

  4. 4

    Set up credentials for each node that requires them.

  5. 5

    Click Execute Workflow to test, then activate.

Setup guide

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