# Services from dice.openverbs.com on Zero

> dice.openverbs.com serves 3 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/dice.openverbs.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/dice.openverbs.com/health.json

## Services

- [Dice Notation Exact Probability Distribution](https://www.zero.xyz/c/dice-notation-exact-probability-distribution-2ae9a9ef/llms.txt): $0.002/call via x402. Computes the exact probability distribution (mean, variance, standard deviation, min/max, full PMF) of any dice notation string without sampling.
- [Dice Notation Parser](https://www.zero.xyz/c/dice-notation-parser-6a199247/llms.txt): $0.002/call via x402. Parses dice notation strings (e.g. '3d6+2', '4d6kh3', '2d20dl1') into structured terms describing dice count, sides, modifiers, and keep/drop rules
- [Dice Notation Roller (dice.openverbs.com)](https://www.zero.xyz/c/dice-notation-roller-dice-openverbs-com-a24b38e4/llms.txt): $0.002/call via x402. Rolls any standard dice notation (e.g. 4d6kh3) using a cryptographically secure RNG, returning per-die results, kept dice, and totals for one or more independent rolls.

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)