Convert coordinates between decimal degrees, degrees-minutes-seconds (40°25'00"N), UTM (zone, easting, northing) and geohash, in any direction, plus a map link.
Average interest rate banks pay on new household time deposits (up to 1 year) and on overnight deposits in a euro area country; without a country, a ranking. Official EC…
Year-on-year change in actual rents for housing (HICP component) for any European country, the EU or the euro area; without a country, a ranking. Official Eurostat data.
Population on 1 January of every European country (ranking) or the evolution of one with annual growth. Official Eurostat data.
Convert integers of any size (signed) between bases 2 to 36: binary, octal, decimal, hex, base32, base36, with bit and byte length and two's complement. Accepts 0x/0b/0o…
Convert Arabic numbers to Roman numerals (1-3999) and Roman to Arabic, validating the canonical form (MCMXCIV) and suggesting the correct one.
Sort Semantic Versioning 2.0 versions (pre-releases included), give highest and lowest, the bump type between two, and which satisfy an npm-style range (^1.2.0, ~1.2, >=…
Find a Spanish municipality or town by name: INE code, province, region and coordinates, with alternatives when several match. Official CartoCiudad (IGN) data.
Sunrise, sunset, solar noon, day length and civil, nautical and astronomical twilight for coordinates and a date, in local time (zone detected from coordinates). Local a…
Transform text: URL slug, remove accents, ASCII, snake_case, camelCase, PascalCase, kebab-case, CONSTANT_CASE, Title, upper, lower, reverse, strip HTML, normalize whites…
Decode a vehicle identification number (17-character VIN): make, model, year, trim, body, engine, fuel and electrification, transmission, drive, plant city and country,…
Validate a Spanish bank account number (20-digit CCC) with both check digits, identify the bank and compute its IBAN; also breaks down a Spanish IBAN. Computed locally;…
Validate a Legal Entity Identifier (LEI, ISO 17442): 20-character format and mod-97 check digits, split into LOU prefix and entity part. Computed locally; does not query…
Species information by scientific or common name (GBIF): accepted name, full taxonomy (kingdom to species), rank, status, common names, number of occurrence records and…
Space weather now from NOAA SWPC: geomagnetic Kp index (recent hours and max), storm level (G0-G5), latest solar X-ray flares, solar wind speed and active alerts. Affect…
Turn an iCal/ICS calendar URL (Google Calendar, Outlook, holidays, events...) into JSON: upcoming events with title, start and end, all-day flag, location, description a…
Turn an iCal/ICS calendar URL (Google Calendar, Outlook, holidays, events...) into JSON: upcoming events with title, start and end, all-day flag, location, description a…
Summary of a Wikipedia article in any language: title, short description, lead paragraph, image, coordinates, link and Wikidata id. If the title is not exact it returns…
Why is my bread dense? Hollandaise split? Rice gluggy? Send a dish and a symptom; get the likely cause and head chef Cristopher's verified fix. Answered: bread or pizza…
Replace values at exactly named object keys recursively; no secret detection and no guarantee that unlisted fields are safe to share.
Resolve a legal entity's direct and ultimate accounting-consolidating parents from GLEIF's global CC0 LEI registry. Returns parent names and LEIs, relationship status, c…
Latest COMPLETE US spot BTC ETF daily print (Farside). Per-call USDC.
IPv4 CIDR calculator: network, broadcast, netmask, wildcard, usable host range and count, plus optional contains-IP membership check.
SSRF-safe public GET with status, headers, and size-capped JSON/text body for agent tool use
