33 small deterministic data utilities for agents and developers, each a plain GET at $0.05 paid over x402 (USDC on Base). Identifier check digits (national IDs, IBAN, GS1, ISIN/CUSIP/SEDOL/FIGI), dates, calendars and time zones, text and Unicode, URL/IDN/semver/hash/JWT parsing, geohash and plus codes, geodesic distance, blockchain address and selector primitives, reference tables (NUTS, airports, currencies, countries), number words, statistics and allocation. No account, no API key.