Macro indicators for any country from the World Bank (CC BY 4.0): GDP, GDP growth, GDP per capita, inflation (CPI), unemployment, population, current account, government debt and lending interest rate, with the year, value and unit of each. Country by ISO2 or ISO3 code or exact name; indicator by friendly name or a raw World Bank code. Values lag by one to two years; years with no published value are left out.

Technical indicators for one crypto pair and interval, computed from the last 60 to 300 candles: SMA and EMA for the periods you give (default SMA 20, 50, 200; EMA 12, 26), RSI 14 (Wilder), MACD 12/26/9, Bollinger 20/2, ATR 14, the latest values, and a plain trend note (above or below the 200 average, overbought or oversold). Candles come from Coinbase; the newest candle may still be forming. Information only, not financial advice.

Packaged food by barcode (EAN-8, UPC-A, EAN-13 or GTIN-14) or by name: product name, brand, quantity, Nutri-Score, NOVA group, nutrients per 100 g (energy, fat, saturated fat, carbohydrates, sugars, fibre, protein, salt), allergens, labels, ingredients text and front image URL. Open Food Facts data (ODbL, attribution in source). A barcode not in the database is a 404, not charged. Community data: values can be missing or wrong.

Tide predictions (high and low water, metres above MLLW, UTC times) for 1 to 7 days at the NOAA station nearest a point, or at a station id, from NOAA CO-OPS (US public domain). Give lat and lon, or a place name. Coverage is US coasts, Great Lakes and territories only; a point more than 100 km from a station is a 404, not charged. search=name lists stations.

Perpetual futures funding for one coin across Hyperliquid, OKX, Deribit and dYdX v4: the current funding rate, the interval (1 or 8 hours), the annualised rate, the next funding time, open interest in coins and USD, and the mark or oracle price. A venue that does not list the coin is left out and named in unavailable. Rates are as the venues publish them; funding is paid between traders, not to the venue. Information only, not financial advice.

Checks a SWIFT/BIC code (8 or 11 characters): the format, bank code, country and its name, location, test and passive flags, branch, and the institution's LEI, legal name and address from GLEIF when a record carries that BIC. Without a GLEIF match the answer still gives the format check and institution null, with the reason. Pure code plus one GLEIF call, cached a day.

Checks up to 10 UK EORI numbers (GB or XI followed by 12 or 15 digits) with HMRC's public check: valid or not, with the processing date. HMRC does not publish the trader's name in this check, so it is null. An HMRC outage is a 503, not charged, never 'invalid'. EU EORI numbers are refused with a 400 in this version.

Latest crypto headlines from the RSS feeds of CoinDesk, Cointelegraph, Decrypt, The Block and Bitcoin Magazine, newest first: title, link, publisher, publish time, the coins named in the text, and at most 200 characters of the feed's own summary. Filter by words in the text (q) or by coin. Feeds are cached 5 minutes; a feed that fails is listed in unavailable. Headlines and links only, not the articles.

Book lookup by ISBN (checked before the call) or by title and/or author: title, subtitle, authors, publishers, first publish year, median page count, ISBN-10 and ISBN-13 of the matching edition, languages, subjects, cover image URL, and the Open Library work and Wikidata ids. Data from Open Library (CC0). A title with no match is a 404, not charged. Up to 20 results.

Grammar, spelling and style check with LanguageTool: each issue with its message, the offending text, its position, up to five suggestions, the rule id and category, plus the corrected text with the first suggestion of each issue applied. Body { text, language }: up to 20 KB, language auto by default. Text is sent only to LanguageTool's public API.

Hashes of a text or base64 input (up to 1 MB): MD5, SHA-1, SHA-256, SHA-384, SHA-512 and CRC-32, and HMAC-SHA-256 or HMAC-SHA-512 when a key is given. Hex and base64 output. MD5 and CRC-32 are implemented here and checked against RFC 1321 and the standard CRC test vector. Body { input, encoding, algorithms, key }. Pure code and WebCrypto, no outside request.

Date and time calculations in pure code. op=diff: calendar years, months and days between two dates, and the total days. op=add or subtract: move a date by years, months, weeks, days, hours or minutes (month ends are clamped). op=info: weekday, ISO week, day of year, quarter, and age from birthDate. op=tz: a local date-time in one IANA time zone shown in another. Impossible dates are a 400 with the reason.

Working days for a country. mode=between counts the working days after `from` up to and including `to` (up to 5 years) and lists the public holidays skipped; mode=add gives the date that is N working days after `date` (up to 3,650). Weekends are Saturday and Sunday, Friday and Saturday in Israel, and Friday only in Iran and Afghanistan. Nationwide public holidays from Nager.Date; a country with no holiday data is a 404, not charged.

Readability of a text in pure code: Flesch Reading Ease, Flesch-Kincaid grade, Gunning Fog, SMOG, Coleman-Liau and ARI, with counts of characters, words, sentences, syllables and complex words, and reading and speaking time. English formulas; other languages get counts only. Syllables are counted by a vowel-group heuristic, so scores are estimates. Up to 100 KB.

Keywords and keyphrases from a text by RAKE (Rose et al., 2010) in pure code: phrases between stopwords and punctuation, scored by word degree and frequency, with counts. Stopword lists for en, de, fr, es, it, pt, nl and tr. Body { text, language, limit }: up to 100 KB, limit 1 to 50.

Maps a US-listed stock ticker, SEC CIK number or company name fragment to the other two, with the exchange: an exact ticker or CIK, or up to 10 names matching the words you give (the names that start with it first). From the SEC's company ticker file (public domain), cached a day and trimmed before caching. Covers companies with an SEC ticker only; a name with no match is a 404, not charged.

Loan and investment calculator in exact cents, no outside source. mode=annuity: monthly payment, total interest and the full amortisation schedule (up to 600 months). mode=compound: future value of an initial sum plus monthly contributions. mode=npv or irr: discount or internal rate of return of a list of cashflows (up to 200, the first at time 0). Rates are percentages from 0 to 100 a year (per period for npv and irr); terms up to 50 years.

Airport lookup in a bundled OurAirports extract (public domain, dated in the answer): by IATA or ICAO code, by name or city words, or the nearest airports within a radius (up to 300 km) of a point. Covers large and medium airports and every airport with an IATA code; small airports without one are left out. Name, codes, type, city, country, coordinates, elevation and Wikipedia link. No time zone (not in the source).

Encode or decode text as base64, base64url, hex, URL (percent) encoding, HTML entities, punycode (domain names) or quoted-printable. Body { input, scheme, direction }, up to 1 MB. Invalid input to decode is a 400 that names the position of the first bad character. Unknown HTML entities are reported, not guessed. Pure code, no outside request.

Convert an amount between a crypto and a fiat currency, or between two crypto assets, at the current spot price: the rate, the converted amount, the pair path used (direct, or through USD) and the time of the rate. Spot prices from Coinbase, Kraken as the fallback. A spot rate, not an executable quote: no fees or slippage. Fiat to fiat is refused; use the FX tool for that. Information only, not financial advice.