A WhatsApp checker for China (+86): find out if a number is registered, read its profile and photo, and find its carrier. Free to try, no sign-up.
Send the number with its country code. The +, spaces and dashes are optional, so 8613123456789 works as well as +86 131 2345 6789.
# Is it on WhatsApp? 0.004 USDCcurl "https://wtsp.dev/v1/exists?phone=8613123456789" \ -H "Authorization: Bearer $WTSP_API_KEY"
# Or let the CLI pay per request from its own walletnpx @wtsp/cli profile +8613123456789/v1/exists0.004 USDC/v1/profile0.006 USDC/v1/profile/full0.01 USDC/v1/carrier0.002 USDCA carrier lookup names the network a number was issued to and whether it is a mobile, fixed or VoIP line. A number that moved to another network shows its original carrier.