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

Look up an ERC-20 token's total supply on Base mainnet. Pass the token contract address. Returns JSON from public on-chain data; token metadata and formatted values depend on the contract's responses. Public RPC reads can fail or be incomplete.

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.

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.

Look up the latest Base mainnet block returned by the upstream RPC, including its number, timestamp (Unix and ISO) and gas used. No parameters. An upstream block response does not independently establish chain liveness or data freshness.

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.

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.

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.

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.

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.

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

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

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

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

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

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

Gregorian to Hebrew calendar date (English and Hebrew)