# Services from heb-utils-x402.hebutils-api.workers.dev on Zero

> heb-utils-x402.hebutils-api.workers.dev serves 16 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/heb-utils-x402.hebutils-api.workers.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/heb-utils-x402.hebutils-api.workers.dev/health.json

## Services

- [Shabbat Times Lookup](https://www.zero.xyz/c/shabbat-times-lookup-8b497ef8/llms.txt): $0.01/call via x402. Returns candle lighting and Havdalah times for a given location and date using latitude/longitude coordinates
- [Base Token Control-Risk Screen (Verdict)](https://www.zero.xyz/c/base-token-control-risk-screen-verdict-d72630f8/llms.txt): $0.02/call via x402. Screens a Base network token contract address for admin-control risk signals and returns a summary verdict with signal count and headline.
- [Hebrew Text Normalizer – Strip Niqqud & Transliterate](https://www.zero.xyz/c/hebrew-text-normalizer-strip-niqqud-transliterate-df094524/llms.txt): $0.005/call via x402. Strips Hebrew vowel diacritics (niqqud) from Hebrew text and returns a rough Latin-script transliteration
- [Technical Indicators Calculator (SMA, EMA, RSI, MACD, Bollinger, ATR, OBV, Stochastic)](https://www.zero.xyz/c/technical-indicators-calculator-sma-ema-rsi-macd-bollinger-atr-obv-d7d9685c/llms.txt): $0.01/call via x402. Computes common technical analysis indicators (SMA, EMA, RSI, MACD, Bollinger Bands, ATR, OBV, Stochastic) from a user-supplied price series
- [Israel Capital Gains Tax Calculator](https://www.zero.xyz/c/israel-capital-gains-tax-calculator-d24b957b/llms.txt): $0.02/call via x402. Calculates Israeli capital gains tax on an asset sale, returning the real (inflation-adjusted) gain and estimated total tax in ILS
- [FX Real Return Calculator](https://www.zero.xyz/c/fx-real-return-calculator-202eaec9/llms.txt): $0.01/call via x402. Calculates the inflation-adjusted (real) return for a currency pair over a given period, given a nominal return and inflation rate
- [Fee Drag Calculator](https://www.zero.xyz/c/fee-drag-calculator-3c598416/llms.txt): $0.005/call via x402. Calculates the long-term cost of investment fees (fee drag) by comparing portfolio growth with and without annual fees over a given time horizon.
- [Base Address Summary](https://www.zero.xyz/c/base-address-summary-eb5ec72f/llms.txt): $0.005/call via x402. Returns an on-chain summary of a Base network address including ETH balance, USDC balance, transaction count, and whether it is a contract
- [Base ERC-20 Token Balance Lookup](https://www.zero.xyz/c/base-erc-20-token-balance-lookup-6a5ba982/llms.txt): $0.001/call via x402. Returns the token balance and decimals for a given ERC-20 token and holder address on the Base blockchain
- [Base ERC-20 Token Supply Lookup](https://www.zero.xyz/c/base-erc-20-token-supply-lookup-9b4b9716/llms.txt): $0.001/call via x402. Returns the total supply and decimal precision of an ERC-20 token contract on the Base blockchain.
- [Base Token Control-Risk Screen](https://www.zero.xyz/c/base-token-control-risk-screen-0a3b23c8/llms.txt): $0.02/call via x402. Screens a Base chain token contract address for control-risk signals (e.g. upgradeable proxy, ownership concentration) and returns a verdict with flags and token metadata.
- [Hebrew Date Converter](https://www.zero.xyz/c/hebrew-date-converter-9b8b419b/llms.txt): $0.005/call via x402. Converts a Gregorian calendar date to its Hebrew calendar equivalent, returning the Hebrew day, month, year, and weekday in both English and Hebrew.
- [Base Blockchain Current Block Number](https://www.zero.xyz/c/base-blockchain-current-block-number-36289a35/llms.txt): $0.001/call via x402. Returns the current block number and its ISO timestamp on the Base blockchain network
- [Return Tail Statistics Calculator](https://www.zero.xyz/c/return-tail-statistics-calculator-d3f3fc02/llms.txt): $0.05/call via x402. Computes lower-tail quantile and conditional mean (CVaR-style) from a user-supplied series of periodic returns
- [HebUtils Order Report — Async Research Report Generator](https://www.zero.xyz/c/hebutils-order-report-async-research-report-generator-fde006ee/llms.txt): $0.01/call via x402. Queues an async research/analysis report on a given topic (company brief, Israeli regulation, market scan, or tech comparison) and returns an order ID and status URL for polling
- [Base Blockchain Address Nonce Lookup](https://www.zero.xyz/c/base-blockchain-address-nonce-lookup-972c988a/llms.txt): $0.001/call via x402. Returns the current transaction nonce for a given Base blockchain address

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)