Classify and route cold email replies using Claude and Instantly.ai

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1. Workflow Overview

Overview : Automatically reads every reply to your cold email campaigns in Instantly.ai, uses Claude AI to understand the intent, and takes the right action . No need ofmanual inbox checking needed...

Best for

Ticket Management automation workflows
AI Summarization automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.stickynote, n8n-nodes-base.webhook, n8n-nodes-base.set, @n8n/n8n-nodes-langchain.chainllm, @n8n/n8n-nodes-langchain.lmchatanthropic, n8n-nodes-base.switch, n8n-nodes-base.slack, n8n-nodes-base.gmail

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Akshay Chug.

Original n8n.io source

1.1 Workflow description

Title: Classify and route cold email replies using Claude and Instantly.ai
Workflow name: Classify and route cold email replies using Claude and Instantly.ai

Overview :

Automatically reads every reply to your cold email campaigns in Instantly.ai, uses Claude AI to understand the intent, and takes the right action . No need ofmanual inbox checking needed.

How it works :

A lead replies to your cold email in Instantly.ai , this workflow starts automatically.
Claude AI reads the reply and labels it: Interested, Not Now, Unsubscribe, or Referral.
Each label triggers a different action calendar email, 30-day follow-up, opt-out removal, or referral ask.
Every reply gets logged to a Google Sheet automatically.

Setup steps :

Instantly webhook — In Instantly → Settings → Webhooks, add a new webhook. Paste the URL from the Receive Instantly Reply node and set the trigger to Reply Received.
Claude AI — Click the Claude Haiku node, add your Anthropic API key from console.anthropic.com. Costs less than $0.01 per reply.
Google Sheets — Create a sheet with these column headers: Timestamp | First Name | Last Name | Email | Company | Reply | Classification | Campaign. Connect your Google account in all four Log to Sheets nodes.
Gmail — Connect your Gmail in Send Calendar Link and Send Referral Reply. Replace {{CALENDAR_LINK}} with your booking link.
Slack (optional) — Connect Slack in Notify Slack - Hot Lead and pick a channel. Don’t use Slack? Right-click the node → Disable.
Instantly re-sequence — In Re-add to Instantly Sequence, add your Instantly API key and replace {{SEQUENCE_ID}} with your follow-up sequence ID.
Activate the workflow and send a test reply to confirm everything works.

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 2 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 3 - Sticky Note2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 4 - Sticky Note3

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 5 - Sticky Note4

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 6 - Sticky Note5

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 7 - Sticky Note6

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 8 - Sticky Note7

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 9 - Receive Instantly Reply

Type / Role: n8n-nodes-base.webhook - webhook
Config choices: Version 2

Block 10 - Extract Reply Data

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 11 - Classify Reply Intent

Type / Role: @n8n/n8n-nodes-langchain.chainLlm - chainLlm
Config choices: Version 1.4

Block 12 - Claude Haiku

Type / Role: @n8n/n8n-nodes-langchain.lmChatAnthropic - lmChatAnthropic
Config choices: Version 1.3

Block 13 - Route by Intent

Type / Role: n8n-nodes-base.switch - switch
Config choices: Version 3.2

Block 14 - Notify Slack - Hot Lead

Type / Role: n8n-nodes-base.slack - slack
Config choices: Version 2.2

Block 15 - Send Calendar Link

Type / Role: n8n-nodes-base.gmail - gmail
Config choices: Version 2.1

Block 16 - Log to Sheets - Interested

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.5

Block 17 - Send Referral Reply

Type / Role: n8n-nodes-base.gmail - gmail
Config choices: Version 2.1

Block 18 - Log to Sheets - Referral

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.5

Block 19 - Log to Sheets - Not Now

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.5

Block 20 - Wait 30 Days

Type / Role: n8n-nodes-base.wait - wait
Config choices: Version 1.1

Block 21 - Re-add to Instantly Sequence

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 22 - Remove from Instantly Sequences

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 23 - Log to Sheets - Unsubscribed

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.5

3. Summary Table

Workflow	Classify and route cold email replies using Claude and Instantly.ai
Complexity	advanced
Nodes	23
Categories	Ticket Management, AI Summarization
Author	Akshay Chug
Published	02 Apr 2026

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/14622/14622.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Ticket Management workflows AI Summarization workflows

Frequently asked questions

What does Classify and route cold email replies using Claude and Instantly.ai do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Ticket Management, AI Summarization use case.

Akshay Chug

14 workflows

Nodes

n8n-nodes-base.stickynote n8n-nodes-base.webhook n8n-nodes-base.set @n8n/n8n-nodes-langchain.chainllm @n8n/n8n-nodes-langchain.lmchatanthropic n8n-nodes-base.switch n8n-nodes-base.slack n8n-nodes-base.gmail

Complexity

advanced

Published 02 Apr 2026

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/14622/14622.json

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Classify and route cold email replies using Claude and Instantly.ai

Workflow preview

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Overview :

How it works :

Setup steps :

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Sticky Note

Block 2 - Sticky Note1

Block 3 - Sticky Note2

Block 4 - Sticky Note3

Block 5 - Sticky Note4

Block 6 - Sticky Note5

Block 7 - Sticky Note6

Block 8 - Sticky Note7

Block 9 - Receive Instantly Reply

Block 10 - Extract Reply Data

Block 11 - Classify Reply Intent

Block 12 - Claude Haiku

Block 13 - Route by Intent

Block 14 - Notify Slack - Hot Lead

Block 15 - Send Calendar Link

Block 16 - Log to Sheets - Interested

Block 17 - Send Referral Reply

Block 18 - Log to Sheets - Referral

Block 19 - Log to Sheets - Not Now

Block 20 - Wait 30 Days

Block 21 - Re-add to Instantly Sequence

Block 22 - Remove from Instantly Sequences

Block 23 - Log to Sheets - Unsubscribed

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions