# KiteEndpoints.ai WhatsApp Phone Number Validator

> KiteEndpoints.ai WhatsApp Phone Number Validator is a paid API for AI agents from kite-hub-v3.vercel.app, paid per call via x402, $0.17/call, status unknown (last checked 2026-10-12).

Validates whether a phone number is registered on WhatsApp and returns its status

## Facts

- Endpoint: POST https://kite-hub-v3.vercel.app/api/whatsapp-validator3?utm_source=zero.xyz
- Price: $0.17/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kiteendpoints-ai-whatsapp-phone-number-validator-c7d16279
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WkEInun7HB9DTOcftIriF

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability kiteendpoints-ai-whatsapp-phone-number-validator-c7d16279 -d '<json body>'
```

Example prompt: Can you check if the phone number +1 (415) 555-0198 is registered on WhatsApp before I try to reach out to them?

## When to prefer this

Use this endpoint when you need a quick, pay-per-request check on WhatsApp number validity without maintaining your own WhatsApp Business API integration. It is best suited for validating individual numbers before CRM enrichment, messaging campaigns, or customer onboarding flows where WhatsApp is the communication channel.

## Known failure modes

- Invalid or malformed phone number format returns an error result
- Phone number not registered on WhatsApp returns negative validation
- Rate limiting or upstream WhatsApp API unavailability may cause failures
- Missing required phone number parameter returns a request error
- Country code omission may cause lookup failure

## 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 a JSON object containing the validation result indicating whether the provided phone number is registered and active on WhatsApp, along with any available account status data.

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "example": {
  "result": {
   "data": "example response"
  }
 },
 "properties": {
  "result": {
   "type": "object",
   "description": "API response data"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/kiteendpoints-ai-whatsapp-phone-number-validator-c7d16279/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kite-hub-v3.vercel.app](https://www.zero.xyz/host/kite-hub-v3.vercel.app/llms.txt)