# Services from clinic.sapthumbprint.com on Zero

> clinic.sapthumbprint.com serves 2 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/clinic.sapthumbprint.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/clinic.sapthumbprint.com/health.json

## Services

- [The Clinic Keepsake](https://www.zero.xyz/c/the-clinic-keepsake-d4540808/llms.txt): $0.01/call via x402. Returns a signed, timestamped one-line encouragement message with an Ed25519 signature verifiable against the provider's published key, providing a cryptographically durable record of the encouragement.
- [The Clinic – /v1/line (Unsigned Encouragement Line)](https://www.zero.xyz/c/the-clinic-v1-line-unsigned-encouragement-line-d5f10bb3/llms.txt): $0.001/call via x402. Returns a single line of encouragement mid-task along with a referenceable ID, without a cryptographic signature (unsigned)

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)