This article provides a complete, practical walkthrough of the Code Manual Send Webhook n8n agent. It connects HTTP Request, Webhook across approximately 1 node(s). Expect a Intermediate setup in 15-45 minutes. One‑time purchase: €29.

What This Agent Does

This agent orchestrates a reliable automation between HTTP Request, Webhook, handling triggers, data enrichment, and delivery with guardrails for errors and rate limits.

It streamlines multi‑step processes that would otherwise require manual exports, spreadsheet cleanup, and repeated API requests. By centralizing logic in n8n, it reduces context switching, lowers error rates, and ensures consistent results across teams.

Typical outcomes include faster lead handoffs, automated notifications, accurate data synchronization, and better visibility via execution logs and optional Slack/Email alerts.

How It Works

The workflow uses standard n8n building blocks like Webhook or Schedule triggers, HTTP Request for API calls, and control nodes (IF, Merge, Set) to validate inputs, branch on conditions, and format outputs. Retries and timeouts improve resilience, while credentials keep secrets safe.

Third‑Party Integrations

• HTTP Request
• Webhook

Import and Use in n8n

1. Open n8n and create a new workflow or collection.
2. Choose Import from File or Paste JSON.
3. Paste the JSON below, then click Import.
4. Show n8n JSON

   Title:
   Automate Bulk Email Lookup Using Google Sheets and Icypeas with n8n
   
   Meta Description:
   Learn how to automate email lead generation using n8n, Google Sheets, and Icypeas. This guide walks you through setting up a bulk email search workflow from data in your Google Sheet to results delivered via Icypeas.
   
   Keywords:
   Lead generation automation, Icypeas n8n integration, n8n email lookup, email enrichment workflow, bulk email search, Google Sheets automation, Icypeas API, n8n Google Sheets, cold email tools, email search API
   
   Third-Party APIs Used:
   - Icypeas API
   - Google Sheets API
   
   —
   
   Article:
   
   Automate Your Lead Generation: Perform Bulk Email Searches with Google Sheets and Icypeas in n8n
   
   Lead generation is one of the most time-consuming tasks in sales and marketing. Despite its importance, gathering accurate and up-to-date contact information can be a challenge. Enter automation tools like n8n, which allow you to streamline monotonous processes using data and APIs. In this article, we'll guide you through an n8n workflow that automates bulk email search using Icypeas and your Google Sheets contact list.
   
   What This Workflow Does
   
   This n8n workflow is designed to:
   1. Read contact information (first name, last name, and company) from a Google Sheet,
   2. Authenticate and build a secure request to Icypeas,
   3. Submit a bulk search request to look up email addresses,
   4. Receive results via your Icypeas dashboard or email.
   
   This not only eliminates manual entry but also reduces human error and speeds up your prospecting process.
   
   How It Works: Step-by-Step Breakdown
   
   1. Manual Trigger
   The workflow starts with a Manual Trigger node in n8n. This allows you to run the process on demand, typically for testing or one-time bulk operations.
   
   2. Google Sheets Integration
   The next node connects to your Google Sheet, where you store prospect data. It expects the spreadsheet to contain three columns labeled:
   - firstname
   - lastname
   - company
   
   Make sure these exact headers are used; otherwise, the data mapping will fail. You’ll need to set up your Google credentials and indicate the correct document and sheet within n8n.
   
   3. Authentication with Icypeas
   A Code node takes care of Icypeas API authentication. You'll need three pieces of information:
   - API Key
   - API Secret
   - User ID
   
   These credentials can be found in your Icypeas account under https://app.icypeas.com/bo/profile. The authentication includes generating an HMAC SHA1 signature, which is a required security layer implemented by Icypeas. If you’re self-hosting n8n, make sure the Crypto module is enabled via the settings panel to ensure the authentication function works correctly.
   
   4. HTTP Request to Icypeas
   With authentication complete, the next step is to make a POST request to Icypeas via the /bulk-search endpoint. This sends the collected contact data for bulk email searching. Body parameters include:
   - task: "email-search"
   - name: A name for the task (used for organizing records)
   - user ID and data payload
   
   Headers must include authentication info and a timestamp, such as:
   - Authorization: {{ $json.api.key + ':' + $json.api.signature }}
   - X-ROCK-TIMESTAMP: {{ $json.api.timestamp }}
   
   You’ll create this as a generic HTTP credential in n8n, associating it with the HTTP Request node.
   
   5. Retrieving Results
   After submission, you don’t need to query for results immediately. Icypeas does the heavy lifting and will notify you by email when your search is complete. Alternatively, you can manually review results from your Icypeas dashboard: https://app.icypeas.com/bo/bulksearch?task=email-search
   
   Why Use This Workflow?
   
   There are several advantages to automating your bulk email search using this method:
   
   - Save Time: Eliminates the need for manual data entry or copy-pasting rows into email finders.
   - Scalable: Handle hundreds or thousands of leads via a simple spreadsheet upload and one-click execution.
   - Secure: Utilizes proper authentication via signature-based HMAC headers.
   - Repeatable: Run this workflow periodically or whenever new data is added to the spreadsheet.
   - Integrable: Extend this setup further to send your results to a CRM, Slack notification, or follow-up campaign.
   
   Tips for Success
   
   - Always review and sanitize your Google Sheets data before triggering the workflow. Inconsistent formatting can cause errors.
   - Store your API key and secret securely; avoid leaving them in plain text in production environments.
   - Schedule this workflow using a Time Trigger node if doing batch lookups regularly.
   
   Conclusion
   
   n8n, paired with Google Sheets and Icypeas, makes for a powerful combination to supercharge your outreach efforts. This workflow provides a complete automation path, from gathering lead data to executing a bulk email search, all with a single click. Whether you're a sales professional, marketer, or founder looking to scale outreach, this is a simple yet effective solution to automate one of the most crucial parts of the lead gen funnel.
   
   Ready to try it yourself? Visit Icypeas at https://icypeas.com to get started, and plug your credentials into this easy-to-deploy n8n workflow.
   
   Happy automating!

5. Set credentials for each API node (keys, OAuth) in Credentials.
6. Run a test via Execute Workflow. Inspect Run Data, then adjust parameters.
7. Enable the workflow to run on schedule, webhook, or triggers as configured.

Tips: keep secrets in credentials, add retries and timeouts on HTTP nodes, implement error notifications, and paginate large API fetches.

Validation: use IF/Code nodes to sanitize inputs and guard against empty payloads.

Why Automate This with AI Agents

AI‑assisted automations offload repetitive, error‑prone tasks to a predictable workflow. Instead of manual copy‑paste and ad‑hoc scripts, your team gets a governed pipeline with versioned state, auditability, and observable runs.

n8n’s node graph makes data flow transparent while AI‑powered enrichment (classification, extraction, summarization) boosts throughput and consistency. Teams reclaim time, reduce operational costs, and standardize best practices without sacrificing flexibility.

Compared to one‑off integrations, an AI agent is easier to extend: swap APIs, add filters, or bolt on notifications without rewriting everything. You get reliability, control, and a faster path from idea to production.

Best Practices

• Credentials: restrict scopes and rotate tokens regularly.
• Resilience: configure retries, timeouts, and backoff for API nodes.
• Data Quality: validate inputs; normalize fields early to reduce downstream branching.
• Performance: batch records and paginate for large datasets.
• Observability: add failure alerts (Email/Slack) and persistent logs for auditing.
• Security: avoid sensitive data in logs; use environment variables and n8n credentials.

FAQs

Can I swap integrations later? Yes. Replace or add nodes and re‑map fields without rebuilding the whole flow.

How do I monitor failures? Use Execution logs and add notifications on the Error Trigger path.

Does it scale? Use queues, batching, and sub‑workflows to split responsibilities and control load.

Is my data safe? Keep secrets in Credentials, restrict token scopes, and review access logs.