ProWebLook WhatsApp Number Checker

Check whether phone numbers are registered on WhatsApp — single or bulk.

Powered by the ProWebLook API.

Features

• Single & Bulk — paste one number or thousands (comma / newline separated)
• Simple output — each number is marked valid (on WhatsApp) or invalid
• Fast — one API call per number, sequential to respect rate limits
• Pay-per-result — $0.005 per number checked

Input Parameters

Parameter	Type	Required	Description
numbers	string	Yes	Phone numbers with country code (no +). Separate multiples with commas, newlines, or spaces.

Example Input

{
    "numbers": "919038655955, 14155552671, 447911123456"
}

Output

Each number produces one result object in the dataset:

Field	Type	Description
number	string	The phone number checked
isWhatsApp	boolean / null	true = valid WhatsApp, false = not on WhatsApp, null = error
status	string	"valid" or "invalid" (absent on error)
error	string	Error message (only present on failure)
checkedAt	string	ISO 8601 timestamp

Example Output

[
    {
        "number": "919038655955",
        "isWhatsApp": false,
        "status": "invalid",
        "checkedAt": "2026-02-28T17:00:00.000Z"
    },
    {
        "number": "14155552671",
        "isWhatsApp": true,
        "status": "valid",
        "checkedAt": "2026-02-28T17:00:01.000Z"
    }
]

Setup

This Actor requires a ProWebLook API key set as an environment variable:

1. Get your API key at proweblook.com
2. Go to Actor → Settings → Environment Variables
3. Add: PROWEBLOOK_API_KEY = your key (mark as Secret)

Use Cases

• Verify customer phone lists before WhatsApp marketing campaigns
• Clean CRM contact databases — remove numbers not on WhatsApp
• Lead qualification — check if prospects are reachable via WhatsApp
• Fraud detection — validate phone numbers during sign-up flows
• Bulk data enrichment pipelines via Apify integrations

Pricing

This Actor uses the Apify Pay-Per-Result model at $0.005 per number checked.

Integrations

Export results as JSON, CSV, or Excel. Connect via Apify API, webhooks, or integrations with Zapier, Make, Google Sheets, and more.

FAQ

Q: What format should phone numbers be in? A: Use the international format with country code, without the + sign. Example: 919038655955 (India), 14155552671 (US).

Q: Is there a limit on how many numbers I can check? A: No hard limit per run. Each number uses one API credit from your ProWebLook balance.

Q: What does isWhatsApp: null mean? A: It means the check failed for that number (API error, invalid format, etc.). See the error field for details.