Cloud WhatsApp Number Validator for N8N, Typebot, Evolution API & Z-API
Running number-check endpoints on your own Evolution API, Z-API, or Baileys instance inside an N8N loop exposes your connected SIM card to Meta anti-scraping bans. FiltraZap validates your entire spreadsheet in our isolated cloud cluster so your N8N and Typebot workflows only message real contacts.
- Stop burning your Evolution API or Z-API instances on bulk number existence checks.
- Eliminate N8N and Typebot queue bottlenecks caused by dead phone numbers.
- Export E.164-standardized CSV/TXT files ready to feed any automation workflow.
Protect Your Automation Instances
Validate 10 numbers free in under 4 seconds on our Single-Screen Homepage or scrub 50,000 leads in the Dashboard.
Opens the Single-Screen Main Validator • No QR Code Needed
🛒 B2B 50k Plan via Mercado Libre (Verified Store)🎥 Watch FiltraZap in Action (Official Video Tutorials)
See how to scrub Excel spreadsheets, prevent SIM bans, and cut costs on the Official WhatsApp Cloud API.
Designed for companies and agencies looking to purchase the 50,000-validation package directly via Mercado Libre.
⚡ Checking via N8N/Evolution Loop vs Pre-Scrubbing in FiltraZap Cloud
| Architecture Metric | N8N Loop + Your Own API Instance | FiltraZap (Cloud 2026) |
|---|---|---|
| Which SIM performs the network lookup? | ✕ YOUR sales/support SIM on Evolution or Z-API | ✓ FiltraZap Cloud Cluster (Your instance stays untouched) |
| Risk of session drop / WhatsApp ban | ✕ Very high when querying hundreds of dead numbers | ✓ Zero (only verified numbers enter your workflow) |
| CPU/RAM load on your N8N server | ✕ clogs N8N workers with failed HTTP executions | ✓ Zero load on your VPS (100% processed on FiltraZap) |
| Multi-column CSV variable handling | ✕ Requires custom JS Code nodes in N8N | ✓ Visual Studio keeps Name, ID & custom workflow variables |
| Speed to scrub 10,000 leads | ✕ Slow (requires long Wait nodes to avoid instant bans) | ✓ High-speed parallel multi-channel cloud processing |
How to Pair FiltraZap with N8N, Typebot & WhatsApp APIs
1. Never Use Your Sending SIM as a Bulk Checker
When the same number that sends campaigns also performs thousands of pre-checks on Evolution API, its trust score drops before the campaign even starts.
2. Keep All Typebot & N8N Variables Intact
Our Spreadsheet Studio validates phone numbers while preserving Name, Email, Order ID, and custom columns for your automation nodes.
3. Zero Failed Executions in Your Workflows
Feeding N8N only 100% active WhatsApp numbers prevents webhook timeouts and maximizes conversion rates.
FAQ — N8N, Typebot, Evolution API & Z-API Users
Why shouldn’t I validate bulk lists using my own Evolution API or Z-API check endpoint?
Because those lookups run directly through your connected SIM card. High ratios of invalid numbers trigger Meta directory-harvesting bans.
Can I import FiltraZap CSV output straight into Google Sheets or N8N?
Yes! Export a clean, E.164-formatted CSV ready for Google Sheets, databases, or N8N/Typebot triggers.
Do I need to connect my API instance to FiltraZap?
No! FiltraZap operates 100% independently in the cloud to guarantee total isolation for your infrastructure.