Summarize & reply to Slack channel messages with Claude AI assistant
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 8 nodes and runs when an HTTP POST request hits its webhook URL. Along the way it connects Anthropic Chat Model. It also calls slack.com over HTTP.
How it runs
Trigger: When an HTTP POST request hits its webhook URL.
- Parse Request (Code): runs custom JavaScript code
- Fetch Unread Messages (HTTP Request): calls slack.com
- Prepare Prompt for Claude (Code): runs custom JavaScript code
- Claude AI: Summarize (Basic LLM Chain): sends a prompt to an LLM, with model: Anthropic Chat Model
- Build Slack Blocks (Code): runs custom JavaScript code
- Post to Slack (Ephemeral) (HTTP Request): calls slack.com
Services it uses
HTTP calls to: slack.com
Before you upgrade to n8n 3.0
Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.
Nodes used (5)
- Webhook
n8n-nodes-base.webhook - Code
n8n-nodes-base.code - HTTP Request
n8n-nodes-base.httpRequest - Basic LLM Chain
@n8n/n8n-nodes-langchain.chainLlm - Anthropic Chat Model
@n8n/n8n-nodes-langchain.lmChatAnthropic
From the author
✨ 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)…