Manually checking 200 WhatsApp/Telegram statuses takes 2 hours; writing scripts to connect multiple platform APIs means dealing with inconsistent validation protocols, and I kept hitting data latency/format issues — debugging this alone ate up 1/3 of my dev timeline.
Then I found NumberChecker, which wraps validation capabilities (WhatsApp/Telegram/Facebook) into lightweight, unified interfaces:
Supports batch number uploads (1000 numbers processed in 5 mins) — no need to call separate endpoints for each platform;
Data is pulled in real-time (80% more accurate than my cached-scraping scripts);
It even returns carrier info + social account activity days (data I previously had to fetch from separate databases) in one response.
For folks building foreign trade SaaS or lead management systems, integrating its API cuts out the work of connecting individual social platform validation endpoints — our team embedded it into our client system last week, and we reduced code for the invalid number filtering step by 60%.
The carrier lookup is free, and the batch APIs have a trial — if you’re dealing with bulk number validation, give it a shot: https://www.numberchecker.ai/
Website -https://platform.checknumber.ai/login?code=LM1101
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