# Services from numeral.openverbs.com on Zero

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

## Services

- [Numeral Systems – Integer to Words](https://www.zero.xyz/c/numeral-systems-integer-to-words-2a49bacb/llms.txt): $0.002/call via x402. Converts an integer number into its spelled-out English word representation
- [Numeral Systems Radix Converter](https://www.zero.xyz/c/numeral-systems-radix-converter-3ce5cc5f/llms.txt): $0.002/call via x402. Converts an integer from one numeric base (radix) to another, supporting bases 2 through 36.
- [Numeral Systems – Roman Numeral Converter](https://www.zero.xyz/c/numeral-systems-roman-numeral-converter-f48b9e7d/llms.txt): $0.002/call via x402. Converts between Arabic integers (1–3999) and Roman numerals bidirectionally via a single POST call
- [Numeral Systems Ordinal Converter](https://www.zero.xyz/c/numeral-systems-ordinal-converter-fdb019d9/llms.txt): $0.002/call via x402. Converts a non-negative integer into its ordinal string representation (e.g., 1 → '1st', 42 → '42nd')

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)