# Services from qty.vercel.app on Zero

> qty.vercel.app serves 7 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/qty.vercel.app
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/qty.vercel.app/health.json

## Services

- [Qty — Deterministic Quantity Parser and Unit Converter](https://www.zero.xyz/c/qty-deterministic-quantity-parser-and-unit-converter-a95e9fd8/llms.txt): $0.002/call via x402. Parses messy natural-language quantity expressions (measurements, prices, recipes, sizes, dates) and converts them to structured, deterministic numeric values with units and SI equivalents.
- [Qty Batch Unit Conversion & Quantity Parsing](https://www.zero.xyz/c/qty-batch-unit-conversion-quantity-parsing-0a43d5e0/llms.txt): $0.01/call via x402. Batch-converts units and parses messy quantities, prices, recipe amounts, sizes, and dates deterministically without inventing numbers
- [Qty Compare Prices](https://www.zero.xyz/c/qty-compare-prices-3159186c/llms.txt): $0.002/call via x402. Compares two or more prices by normalising them to a common base unit and identifies which is cheapest per unit
- [Qty Size Interpreter](https://www.zero.xyz/c/qty-size-interpreter-d4033d53/llms.txt): $0.002/call via x402. Interprets messy clothing/shoe size strings and converts them to standardized size quantities across sizing systems
- [Qty Recipe Scaler](https://www.zero.xyz/c/qty-recipe-scaler-3e9f02cf/llms.txt): $0.002/call via x402. Scales a recipe's ingredient quantities by a deterministic factor to serve a different number of people
- [Qty Date — Deterministic Date Computation](https://www.zero.xyz/c/qty-date-deterministic-date-computation-805f4010/llms.txt): $0.002/call via x402. Resolves and computes dates deterministically from natural language or structured date expressions, returning canonical date values without hallucination.
- [Qty Receipt — Deterministic Quantity Computation Receipt](https://www.zero.xyz/c/qty-receipt-deterministic-quantity-computation-receipt-fce5ba91/llms.txt): $0.001/call via x402. Returns a cryptographically-hashed receipt document confirming the deterministic quantity conversions, formulas, and definitions computed in a Qty session

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)