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wtsp.dev

Send a phone number, learn whether it is on WhatsApp, or get its WhatsApp profile, business details, profile photo or carrier. Every request is paid on its own: USDC on Base with x402, or stablecoins on Tempo with MPP. No sign-up. Prepaid API keys are optional.

GET

/v1/credits

API key
API key balance

GET

/v1/carrier

$0.004
Carrier lookup

GET

/v1/exists

$0.004
WhatsApp check
GET

/v1/profile

$0.006
WhatsApp profile
GET

/v1/profile/full

$0.01
WhatsApp profile + photo

GET

/v1/status

Public
Service status

Install on Your Agent

Add wtsp.dev skills to any client

npx agentcash add https://wtsp.dev
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wtsp.dev | MPPscan