heb-utils-x402.hebutils-api.workers.dev

Get the total supply of any ERC-20 token on Base mainnet. Pass the token contract address. Returns the raw total supply, decimals, symbol and the human-readable supply in one JSON response. Read-only, live on-chain data.

Get the latest Base mainnet block number with its timestamp (unix and ISO) and gas used. No parameters. Read-only live on-chain data, useful to check chain liveness and data freshness.

Get the transaction count (nonce) and pending nonce of any address on Base mainnet. Pass the address. Read-only live on-chain data, useful before sending a transaction.

Get the ERC-20 token balance of any wallet on Base mainnet. Pass the token contract address and the holder address. Returns the raw balance, decimals, token symbol and the human-readable balance in one JSON response. Works for USDC, WETH, DAI or any standard ERC-20. Read-only, live on-chain data.

Fee and compounding calculator: final value with and without annual fees. Arithmetic only, not advice.

Order a researched report (company brief, Israeli regulation explainer, market scan, tech comparison). Written from public sources, delivered within 24h, general information only, not advice. Poll the returned status_url.

Base address summary: contract or wallet, ETH balance, tx count, USDC balance

One call for a Base token: symbol, name, decimals, total supply, optional holder balance, admin-control risk screen (proxy, owner, mint, pause, blacklist, fee setters) with headline and signal count, and the current block number. Pass the token contract address and optionally a holder address. Replaces 4-5 separate lookups with one payment. Read-only live on-chain data, heuristic screen, not an audit, not advice.

Check if a token on Base looks risky: plain-language heuristic screen of a token contract for admin-control signals (upgradeable proxy, active owner, mint, pause, blacklist, fee setters), with a one-line headline, signal count and shareable summary. Pass the token contract address. Heuristic bytecode screen, not an audit, not advice.

ECB reference FX rate plus inflation-adjusted growth. Information only, not advice.

Gregorian to Hebrew calendar date (English and Hebrew)

Strip niqqud, normalise final letters, rough transliteration of Hebrew text

Technical indicator numbers (SMA, EMA, RSI, MACD, Bollinger, ATR, OBV, Stochastic) from price series you supply (comma-separated, oldest first, up to 250 values). Numbers only, with documented conventions. Not advice, no signals.

Candle-lighting and havdalah times for the coming Shabbat at lat/lon

Base ERC-20 token control-risk screen: proxy, owner, mint, pause, blacklist, fee setters from bytecode

Israel capital gains tax estimator for listed securities (25% real gain plus surtax). Estimate only, not tax advice.

Empirical lower-tail statistics of periodic returns you supply (decimals, 20-250 values): lower quantile and mean of observations at or below it. Numbers only, documented convention. Not advice, not a risk limit.