# Services from email-verifier.underscoredone.com on Zero

> email-verifier.underscoredone.com serves 1 paid API service for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/email-verifier.underscoredone.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/email-verifier.underscoredone.com/health.json

## Services

- [Email Verifier & Validator](https://www.zero.xyz/c/email-verifier-validator-95fafc00/llms.txt): $0.01/call via x402. Verifies whether a single email address can actually receive mail and returns a valid/invalid/risky verdict with metadata about the address.

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)