# Services from abi-mainnet-sandbox.benjaminbu.workers.dev on Zero

> abi-mainnet-sandbox.benjaminbu.workers.dev 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/abi-mainnet-sandbox.benjaminbu.workers.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/abi-mainnet-sandbox.benjaminbu.workers.dev/health.json

## Services

- [Business-Day Calculator (US & JP)](https://www.zero.xyz/c/business-day-calculator-us-jp-a106c99b/llms.txt): $0.005/call via x402. Counts the number of business days between two dates for the US or Japan, excluding weekends and public holidays.
- [Base USDC Receipt Verifier](https://www.zero.xyz/c/base-usdc-receipt-verifier-b1ca8e35/llms.txt): $0.005/call via x402. Verifies a Base blockchain USDC transaction by looking up its receipt via transaction hash
- [Japanese Gotobi Calendar API](https://www.zero.xyz/c/japanese-gotobi-calendar-api-b31ce573/llms.txt): $0.01/call via x402. Returns whether a given date falls on a Japanese gotobi day (5th, 10th, 15th, 20th, 25th, or 30th of the month), which are traditionally busy payment settlement days in Japan.
- [CSV Profiler](https://www.zero.xyz/c/csv-profiler-516c826d/llms.txt): $0.005/call via x402. Analyzes CSV text and returns a statistical profile of its columns, data types, and distributions

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)