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Blockbuster.ai WhatsApp Validator
x402
Blockbuster.ai WhatsApp Validator is a paid API for AI agents from blockbuster-ai.vercel.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-17).
Validates whether a given phone number is a registered and active WhatsApp account
Price / call$0.05
Success—
StatusUnknown
How this service works
115+ premium paid endpoints: Social Media, AI/ML, E-commerce, Finance, Data Intelligence, Media, Tools. x402 micropayments on Base chain.
Output
Returns a JSON object with a success boolean and a data object indicating whether the provided phone number is a registered and active WhatsApp account.
Example use cases
Validate contacts before WhatsApp campaign
“I have a list of 500 customer phone numbers and I want to run a WhatsApp marketing campaign — can you check which of these numbers are actually registered on WhatsApp before I start sending messages?”
Route support tickets via WhatsApp
“When a new support ticket comes in, can you verify if the customer's phone number is on WhatsApp so I can decide whether to reach out to them there or fall back to SMS or email?”
Clean CRM WhatsApp contact list
“I'm building out our CRM and want to tag which contacts are reachable on WhatsApp — can you go through these phone numbers and confirm which ones have active WhatsApp accounts?”
Technical details
Endpoint
POSThttps://blockbuster-ai.vercel.app/api/whatsapp-validator?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to verify whether a specific phone number is registered on WhatsApp before initiating messaging campaigns, building contact lists, or routing communications. Prefer this over manual checking or alternative validators when you need a programmatic, pay-per-use solution integrated with x402 micropayments on Base chain.
Side effects
- Invalid or malformed phone number format returns an error or false result
- Number not on WhatsApp returns success:true but data indicating not registered
- Payment failure via x402 micropayment returns 402 status blocking the request
- Rate limiting or downstream WhatsApp API issues may return service unavailable
- Missing or empty query parameter may cause a 400 bad request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| query | string | Input parameter for the API call |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| data | object | |
| success | boolean |
Tags
x402
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