Verify phone and email leads with Zelnum via HTTP request

by yaho · 1 views · created 2026-09-29 · Lead Generation

What this workflow does

This workflow has 11 nodes and runs manually, when you click “Execute workflow”. It uses only n8n's built-in nodes. It also calls api.zelnum.com over HTTP.

How it runs

Trigger: Manually, when you click “Execute workflow”.

1. Configure realtime request (Edit Fields (Set)): sets 7 fields: series, identifier, country…
2. Get current product catalog (HTTP Request): calls api.zelnum.com (GET)
3. Validate request and products (Code): runs custom JavaScript code
4. Get non-billable realtime quote (HTTP Request): calls an HTTP API (POST)
5. Review quote and expiry (Code): runs custom JavaScript code
6. Billing explicitly enabled? (If): checks a condition and branches into true / false
7. Authorize quoted request (Code): runs custom JavaScript code
8. Return quote preview — no charge (Code): runs custom JavaScript code
9. Run realtime check — BILLABLE (HTTP Request): calls an HTTP API (POST)
10. Prepare product verdicts for CRM (Code): runs custom JavaScript code

HTTP calls to: api.zelnum.com

Before you upgrade to n8n 3.0

Nodes used (5)

• Manual Triggern8n-nodes-base.manualTrigger
• Edit Fields (Set)n8n-nodes-base.set
• HTTP Requestn8n-nodes-base.httpRequest
• Coden8n-nodes-base.code
• Ifn8n-nodes-base.if

From the author

Quick overview Verify a phone number or email lead before updating your CRM. This Zelnum realtime workflow checks current products, previews pricing without a charge, and requires explicit billing approval before returning per-product verdicts and spending…

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