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KiteEndpoints WhatsApp Phone Number Validator
x402
KiteEndpoints WhatsApp Phone Number Validator is a paid API for AI agents from kite-endpoints.vercel.app, paid per call via x402, $0.17/call, status unknown (last checked 2026-09-13).
Validates whether a phone number is registered on WhatsApp and returns its status
Price / call$0.17
Success—
StatusUnknown
How this service works
400+ paid API endpoints. Social media, AI, crypto, finance, weather, ecommerce, tools. Pay per request with USDC on Base chain.
Output
Returns an object indicating whether the submitted phone number is registered and active on WhatsApp, along with any available account metadata such as validity status.
Example use cases
Pre-campaign WhatsApp list scrubbing
“I have a list of customer phone numbers and I want to know which ones are actually on WhatsApp before I send out a bulk message — can you validate this number first: +44 7911 123456?”
CRM contact WhatsApp enrichment
“Before we add this lead to our WhatsApp outreach sequence, can you verify whether +49 151 23456789 is a real WhatsApp account?”
Support bot contact reachability check
“A customer gave us +91 98765 43210 as their contact number — can you confirm it's registered on WhatsApp so we can route their support ticket there?”
Technical details
Endpoint
POSThttps://kite-endpoints.vercel.app/api/whatsapp-validator3When to prefer
Use this endpoint when you need to verify WhatsApp registration status of a phone number before attempting to send a message, build a contact list, or qualify leads for WhatsApp-based outreach. Prefer this over manual testing or bulk send attempts when accuracy and cost-efficiency matter for messaging campaigns.
Side effects
- Invalid or malformed phone number format returns an error
- Phone number not registered on WhatsApp returns a negative validation result
- Rate limiting or payment failure (HTTP 402) if USDC payment not processed
- Network timeout if WhatsApp lookup is slow
- Missing country code causes validation failure
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| result | object | API response data |
Tags
x402
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