# Services from commsharbor.com on Zero

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

## Services

- [CommsHarbor Email Security Audit](https://www.zero.xyz/c/commsharbor-email-security-audit-37ba0e6a/llms.txt): $0.01/call via x402. Performs a comprehensive email security audit of a domain, checking SPF, DKIM, DMARC, and MX records and returning an overall security score
- [CommsHarbor API Credit Top-Up](https://www.zero.xyz/c/commsharbor-api-credit-top-up-e5627a32/llms.txt): $0.1/call via x402. Purchases $0.10 of prepaid credit for use with CommsHarbor's house APIs

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)