# Services from wtsp.dev on Zero

> wtsp.dev serves 5 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/wtsp.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/wtsp.dev/health.json

## Services

- [wtsp.dev WhatsApp Phone Lookup](https://www.zero.xyz/c/wtsp-dev-whatsapp-phone-lookup-0cff1ddb/llms.txt): $0.006/call via x402. Looks up a phone number on WhatsApp to return registration status, account type, business profile, device info, and carrier details.
- [wtsp.dev WhatsApp Full Profile Lookup](https://www.zero.xyz/c/wtsp-dev-whatsapp-full-profile-lookup-0bc07951/llms.txt): $0.01/call via x402. Look up a phone number's full WhatsApp profile, including registration status, account type, business details, profile photo, and linked devices
- [wtsp.dev Carrier Lookup](https://www.zero.xyz/c/wtsp-dev-carrier-lookup-7fd25ecb/llms.txt): $0.004/call via x402. Look up carrier, line type, country, and location details for any phone number
- [wtsp.dev WhatsApp Phone Number Lookup](https://www.zero.xyz/c/wtsp-dev-whatsapp-phone-number-lookup-c89f53fb/llms.txt): $0.004/call via x402. Check whether a given phone number is registered on WhatsApp and retrieve basic account status
- [wtsp.dev Credits Purchase](https://www.zero.xyz/c/wtsp-dev-credits-purchase-b8d6c1c2/llms.txt): $10/call via x402. Purchase USDC-denominated API credits for the wtsp.dev WhatsApp lookup service, receiving a new API key or topping up an existing one

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)