# Services from emailauth.openverbs.com on Zero

> emailauth.openverbs.com serves 4 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/emailauth.openverbs.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/emailauth.openverbs.com/health.json

## Services

- [SPF Record IP Evaluator (Literal Mechanisms Only)](https://www.zero.xyz/c/spf-record-ip-evaluator-literal-mechanisms-only-c04b7c12/llms.txt): $0.004/call via x402. Evaluates an SPF TXT record against a sending IP address using only literal ip4/ip6/all mechanisms, returning indeterminate for DNS-dependent mechanisms encountered before a match.
- [DKIM Public-Key Record Parser](https://www.zero.xyz/c/dkim-public-key-record-parser-152df21c/llms.txt): $0.004/call via x402. Parses a DKIM DNS TXT record string into structured fields: key type, public key, hash algorithms, service types, and flags — and detects revoked or malformed records.
- [SPF Record Parser](https://www.zero.xyz/c/spf-record-parser-d013b5d3/llms.txt): $0.004/call via x402. Parses an SPF TXT record string into its constituent qualified mechanisms and modifiers
- [DMARC TXT Record Parser](https://www.zero.xyz/c/dmarc-txt-record-parser-bb7afe18/llms.txt): $0.004/call via x402. Parses a raw DMARC TXT record string into its structured policy, alignment, sampling rate, and reporting tags

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)