FormatBytes x402 REST usage
Convert a byte count to a human-readable size (B/KB/MB/GB/TB/PB, 1024 steps, 2 decimals). Input: bytes.
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Convert a byte count to a human-readable size (B/KB/MB/GB/TB/PB, 1024 steps, 2 decimals). Input: bytes.
Hyperliquid perpetual OHLCV candles for any listed coin, with trend statistics computed for you (first/last close, percent change, high, low, average volume, direction). Interval: 1m, 5m, 15m, 1h, 4h, 1d. Use it for mome...
EU market brief — 4 European equity indices (price + % change), the ECB's daily reference rates for USD, GBP, CHF, JPY and CNY, and the latest ECB press releases, speeches and interviews. No inputs, one call.
Fetches a country's capital from the countriesnow API by country name, returning country and capital fields 🆓 5 free trial calls per signed wallet
Cross-venue funding radar: the same perpetual's funding on Hyperliquid, dYdX, Bybit and Binance, normalised to one hourly basis and annualised, with mark price and open interest side by side, plus the cheapest venue to b...
Combined domain check: SSL cert validity (issuer, expiry, days remaining) + HTTP headers. Two checks, one call. $0.01/call, 5 free trials.
EU market brief — 4 European equity indices (price + % change), the ECB's daily reference rates for USD, GBP, CHF, JPY and CNY, and the latest ECB press releases, speeches and interviews. No inputs, one call.
One normalized read of a Polymarket market across three upstreams — Gamma (outcome prices, best bid/ask, spread, 24h volume, liquidity, tick size), CLOB (the top three order-book levels on each side, correct end of the b...
Solve the 24 Game puzzle — find expressions that evaluate to 24.
reCAPTCHA v2/v3, hCaptcha, Turnstile. Paid per call via x402 in USDC on Base. No free trial — every call spends a prepaid solver balance.
Cartesian product of two or more sets. Input: sets (array of arrays, or pipe-separated strings). Output: array of tuples.
Computes the cash conversion cycle as daysInventory plus daysReceivables minus daysPayables 🆓 5 free trial calls per signed wallet
Computes Euclidean distance between points (x1, y1) and (x2, y2) using Math.hypot 🆓 5 free trial calls per signed wallet
Calls name() on a token contract and returns the decoded name for the chosen chain 🆓 5 free trial calls per signed wallet
Converts an integer value into its Gray code by XORing it with itself shifted right one bit 🆓 5 free trial calls per signed wallet
Returns the newline-separated lines of text that contain the given pattern or search string 🆓 5 free trial calls per signed wallet
Tests whether the square of an integer ends with the decimal digits of that integer 🆓 5 free trial calls per signed wallet
Tests whether g is a primitive root modulo p by checking g to the power phi over prime factors 🆓 5 free trial calls per signed wallet
Returns the full English month name for a 1-based month number 1-12; a missing or out-of-range month is a caller error (400).
Search Google News RSS by topic or keyword; free, no API key. Inputs: topic (or query/q), count (1-20, default 10).
Abbreviates a number with K, M, B, or T suffixes and two decimals 🆓 5 free trial calls per signed wallet
Sends a HEAD request to a host and returns reachability, HTTP status and latency 🆓 5 free trial calls per signed wallet
Powers of a base: base^0 through base^(count-1). Inputs: base (default 2), count (default 10, max 2000).
Sorts an array of numeric values ascending with a quicksort partition scan 🆓 5 free trial calls per signed wallet
Computes R-squared comparing actual and predicted arrays via residual and total sums of squares; the arrays must be the same length, and a constant actual array yields null 🆓 5 free trial calls per signed wallet
Divide two numbers and return a/b as a decimal. Inputs: a (numerator), b (denominator).
Computes years to double by dividing 72 by a rate, rounded to two decimals 🆓 5 free trial calls per signed wallet
Remove HTML/XML tags from text and return the remaining characters. Input: text. Output: the stripped string.
Returns the text before the first occurrence of a separator, or the whole text if absent 🆓 5 free trial calls per signed wallet
Tests whether an integer is powerful, meaning every one of its prime factors appears to at least the second power 🆓 5 free trial calls per signed wallet
Provider identity is derived from the domain or repository in the source record. If two vendors share a host, they appear together here — that is a limitation of the data, not a statement about ownership.