data.greeneris.io

One-call verification of a European company: official registry existence and status, insolvency signals, VAT (VIES), LEI (GLEIF), sanctions screening (EU/OFAC/UN/UK/FR), EORI and domain age, condensed into a pass/review/fail verdict with per-check source, timestamp and an explicit coverage map. Query: country=FR (FR, UK, IE, NO, FI, SK, PL, CZ, CH) and id=552032534 (national registry number). Factual verification, not a credit score. Buyers are never charged on failure.

Cross-venue funding-rate arbitrage screener for crypto perpetuals: for each symbol, identifies the venue to SHORT (highest annualized funding) and the venue to LONG (lowest), with the gross APR spread and per-leg open interest in USD, ranked by spread. Query: ?symbols=BTC,ETH,... (max 12, sensible default list). JSON, ~30s cache. Excludes fees/slippage; informational only.

One-call due diligence on a French company by SIREN or SIRET: checksum, existence and status (SIRENE), insolvency proceedings (BODACC), VAT validity (VIES) and sanctions screening across EU/OFAC/UN/UK/FR lists, condensed into a risk verdict (low, medium, high or critical) with reasons and a 0-100 score. Query: siren=NNNNNNNNN or siret=NNNNNNNNNNNNNN. Sub-checks degrade gracefully; buyers are never charged on failure.

Annual accounts filed with the French RNE (INPI). Query: ?siren=552032534 (9 digits, Luhn-validated). Returns the filing history -- closing date, filing date, type (complet/simplifie/consolide), public or confidential -- which is a KYB signal in itself. For the latest public filing it adds headline figures (revenue, operating and net result, total assets, equity) when the liasse scheme is mapped, else says not_covered rather than guessing. 24h cache.

One-call compliance check for the French e-invoicing reform (from 2026-09-01 the customer's SIREN is a mandatory invoice mention). Query: ?siren=552032534 or ?siret=55203253400041. Runs the Luhn checksum, confirms existence and active status in the official SIRENE registry, computes the FR VAT number and validates it live against VIES. Returns a single verdict: ready / not_ready / check_vat_manually (VIES flakiness never blocks the answer). 1h cache.

Depeg monitor for USD stablecoins (USDT, USDC, DAI, FDUSD, TUSD, USDe, PYUSD): DeFiLlama market-aggregate price per coin, converted to a deviation from 1.0 in basis points, with a depeg_alert flag (triggered beyond 50 bps) and the worst deviation across the set. Query: symbols=USDT,USDC,DAI (max 8, default shown). JSON, 60s cache. Derived risk signal, not a raw feed.

Deribit DVOL index (30-day annualized implied volatility from the options order book) for BTC or ETH, delivered as a risk signal: current level, 24h change, and min/max/percentile over a lookback window. Query: ?asset=BTC|ETH&window=7d|30d|90d (defaults BTC, 30d). JSON, 5min cache. Derived from Deribit public volatility-index candles.

Package intelligence from deps.dev (Google Open Source Insights, data CC-BY 4.0): resolved license list, known advisory ids, source project, GitHub stars and OpenSSF Scorecard overall score. Query: ?system=npm&pkg=react&version=latest (systems: npm, pypi, go, maven, cargo, nuget; version defaults to the registry default release). Refreshed upstream continuously; served with a 6h cache.

Security audit of one exact dependency version, backed by OSV.dev (Google), which aggregates public advisories (GHSA, PyPA, RustSec...) in near real time. Query: ?pkg=lodash&ecosystem=npm&version=4.17.20 (ecosystems: npm, pypi, go, crates.io, maven, nuget, rubygems, packagist, hex, pub). Returns vuln_count, max_severity, advisory ids and the versions that fix them; vuln_count=0 means clean. Cached 1h.

Fresh EU public procurement notices from TED (Tenders Electronic Daily, official Publications Office API, new notices daily). Query: ?cpv=48000000&country=FRA&days_back=7&limit=10 (cpv = 8-digit CPV code, country = 3-letter buyer country, all optional). Each notice: publication_number, publication_date, title, buyer_name, tender deadline, notice URL. 1h cache.

Legal announcements from the French BODACC official gazette for one company, by SIREN (Luhn-validated). Query: ?siren=383474814 (required), famille=collective for insolvency proceedings (optional filter), limit=10 (1-20). Returns newest-first announcements with family, tribunal, judgment nature and date, and source URL; legal entities only (GDPR-safe). Zero announcements for a valid SIREN is a clean-record signal. Source: DILA open data, daily publications. Cached 1h.

Daily feed of French public tender notices from BOAMP (DILA official open-data portal, Licence Ouverte), newest first. Returns notice id, subject, buyer name, publication date, response deadline, market family and sector descriptors. Query: ?department=59&keyword=informatique&limit=20 (all params optional, max 50). Cached 1h - fresh enough to react on publication day.

OECD Composite Leading Indicator (amplitude-adjusted, long-term trend = 100), the reference early signal of business-cycle turning points. Query: ?area=USA&n=6 (area codes: USA, DEU, FRA, GBR, JPN, G20...; n = last N monthly values, 1-36). Returns monthly observations plus a computed cycle_signal (expansion/downturn/slowdown/recovery). Published ~mid-month by OECD; 24h cache.

Open markets on Kalshi, the CFTC-regulated US event exchange, most-traded first: ticker, title, live yes bid/ask (USD, 0-1), mid-quote implied probability, 24h volume, open interest and close time, from the public Trade API v2. Query: ?series=KXBTC (optional series_ticker filter, e.g. KXBTC, KXCPIYOY) &limit=1-25 (default 10). JSON, 5min cache. Cross-reference /v1/predict/polymarket for venue spreads.

Top open Polymarket prediction markets for a topic, ranked by 24h volume: event title, end date, and per-market outcome probabilities (0-1) with USD volume, from the public Gamma API (live on-chain odds). Query: ?tag=crypto|politics|economy|fed|... (any Polymarket tag slug) &limit=1-10 (default crypto, 5). JSON, 5min cache.

Screen a name against the five official sanctions lists (EU, US OFAC SDN, UN, UK FCDO, French asset freezes) from a snapshot refreshed daily, with per-list dates. Query: name=NAME (optional threshold=0.6-1.0, lists=eu,ofac,un,uk,fr). Returns scored matches with entity type and programs, and a verdict: match, possible_match or no_match.

Historical daily solar irradiance and weather series from NASA POWER for any lat/lon: ALLSKY_SFC_SW_DWN (kWh/m2/day), T2M (deg C), WS10M (m/s) and other POWER codes. Query: ?latitude=48.85&longitude=2.35&start=20260601&end=20260630&parameters=ALLSKY_SFC_SW_DWN,T2M. Coverage 1981..present (few days lag), max 366 days per call, -999 marks missing days. 24h cache. Sized for PV project due diligence, agrivoltaics and off-grid design.

Official UK Companies House data in one paid call. Search: ?q=tesco returns matching companies (number, status, type, incorporation date). Profile: ?number=00445790 returns the full profile PLUS current officers and PSC (persons with significant control, the UK quasi-UBO register): names, roles, natures of control, risk flags (insolvency history, charges, overdue filings) and typed insolvency cases when history exists. Statutory register data, minimized. 24h cache.

As-filed XBRL fundamentals for any SEC-registered company, straight from the EDGAR companyconcept API (updated as filings are accepted). Query: ?cik=320193 (Apple) &tag=Revenues|Assets|NetIncomeLoss|EntityCommonStockSharesOutstanding... &taxonomy=us-gaap|dei (default us-gaap) &limit=N most recent facts per unit (1-40, default 8). Each fact carries period, value, fiscal year/period, form type and filing date, grouped by unit (USD, shares...). Served with a 12h cache.

Official Swiss commercial register via Zefix (Federal Office of Justice). Search: ?q=swisscom (company name, 3+ chars) returns matches with UID, legal form and status. Profile: ?uid=CHE-105.909.036 (or ?chid=CH-...) returns the full record: legal form, status, canton, registered seat, purpose, capital and the official Zefix/cantonal excerpt links. Optional canton, active_only, limit (1-20). Sole-proprietor home addresses withheld (GDPR). 24h cache.

Normalized crypto perpetuals snapshot across Binance, Bybit and Hyperliquid in one call: current funding rate, funding interval, annualized funding (APR %), mark price, index price, premium/basis %, open interest (base units and USD). Query: ?symbols=BTC,ETH,SOL (max 10). JSON only, ~20s cache, partial results if a venue is down.

Support/EOL schedule from endoflife.date (open data, ~350 products: python, nodejs, ubuntu, postgresql...) with derived is_eol and days_to_eol per cycle, computed at request time. Query: ?product=python (required slug) & cycle=3.12 (optional, returns that single cycle). Returns cycle, release_date, eol, latest patch, lts, support. 24h cache.

Base-image due diligence from the Docker Hub API v2: repository status, star and pull counts, last_updated with derived days_since_update, and the 10 most recently pushed tags with push date and size. Query: ?repo=nginx&namespace=library (namespace defaults to library for official images). Lets CI/CD agents avoid building on stale or abandoned images; cached 1h.

Authoritative domain registration facts from the ICANN-mandated RDAP protocol (rdap.org bootstrap -> registry of record), normalized across all TLDs: registration/expiration/last-changed dates, computed age_days, registrar name, EPP status locks and nameservers. Query: ?domain=google.com (required). No personal data served. 24h cache.

Public holidays and school holidays with subdivision granularity (German Laender, French academies, Spanish communities...) from the OpenHolidays API (data ODbL-1.0, ~36 mostly European countries). Query: ?country=DE&from=2026-07-01&to=2026-12-31&type=public|school&subdivision=DE-BY (optional ISO 3166-2 filter; window max 366 days, default today +6 months). Each entry: dates, English name, nationwide flag, affected subdivision codes. 24h cache.

Consolidated MiFIR reference data for one ISIN, from the official ESMA FIRDS register (updated daily). Query: ?isin=FR0000120271 (required). Returns full and short instrument name, CFI code, issuer LEI, notional currency, relevant competent authority country, relevant market MIC and the deduplicated list of trading-venue MICs where the instrument is admitted. Cached 24h.

Wholesale day-ahead electricity prices in EUR/MWh per European bidding zone, from the Energy-Charts API (Fraunhofer ISE; data CC BY 4.0 from Bundesnetzagentur/SMARD). Query: ?bzn=DE-LU|FR|NL|ES|IT-NORTH|SE4... (44 zones), optional ISO window &start=2026-07-12&end=2026-07-13. Returns timestamped price points (15-min or hourly slots, max 288). 1h cache.

Live intra-EU VAT number validation via the European Commission VIES REST API (real-time query of the member state registry). Query: ?cc=IE&vat=6388047V (cc = member state code incl. EL/XI, vat = number without country prefix). Returns is_valid, the trader name and address as registered (when the member state publishes them) and request_date (compliance timestamp); 24h cache.

Latest euro area risk-free spot yields from the ECB Data Portal (dataset YC, AAA-rated central government bonds, Svensson model; updated each business day ~12:00 CET). Query: ?tenors=3M,1Y,2Y,5Y,10Y,30Y (1-8 tenors from 3M to 30Y). Returns yields_pct per tenor, observation date, and the 2s10s spread in bp when 2Y and 10Y are requested. 1h cache.

Adds N French business days to a date (?start=2026-07-13&add=30) or counts them over a range (?from=2026-07-01&to=2026-09-30). Skips weekends and the 11 French legal public holidays (movable feasts computed via Butcher-Meeus). mode=ouvres (Mon-Fri, default) or ouvrables (Mon-Sat). Deterministic local computation, JSON.

Official French company registry search via recherche-entreprises.api.gouv.fr (INSEE Sirene data, updated daily). Query: ?q=airbus or ?q=383474814 (name or SIREN), optional per_page (1-10), page, code_postal, activite_principale (NAF, e.g. 70.10Z), etat_administratif (A active / C ceased). Returns SIREN, legal form, NAF, HQ address, employee range, status and published finances per company. Personal data on directors is stripped (GDPR). 24h cache.

Official DPE energy certificates for existing French dwellings from the ADEME dpe03existant dataset (Licence Ouverte 2.0, anonymised). Returns energy class A-G, GHG class, primary-energy consumption kWh/m2/yr, floor area, construction period. Query: ?postal_code=75011 or ?address=48 rue de Montreuil Paris, optional &size=10 (max 50). Spots F/G rental-ban units for real-estate due diligence. Cached 24h.

Official risk register for any French commune from the GeoRisques GASPAR database (BRGM / Ministry of Ecological Transition, Licence Ouverte): flood, earthquake, industrial hazard, dam failure, ground movement, dangerous-goods transport, etc. Query: ?code_insee=31069 (INSEE commune code, not a postal code). Returns coded risk list with French labels. Slow-moving data, cached 7 days.

Official US Treasury Reporting Rates of Exchange: the legal USD conversion rates required for FBAR/8938 filings and US federal accounting, covering ~170 currencies including exotics absent from ECB feeds. Query: ?currencies=Euro Zone-Euro,Japan-Yen (optional, all if omitted) and ?date=YYYY-MM-DD (latest quarterly rate at or before that date, default today). Returns units of foreign currency per 1 USD. Source updates quarterly; served with a 7-day cache.

All currently active disaster events monitored by GDACS (European Commission JRC / UN OCHA, attribution CC-BY-style), normalized and sorted by alert score. Optional filters: ?type=TC|EQ|FL|VO|WF|DR, level=green|orange|red, bbox=min_lon,min_lat,max_lon,max_lat. Each event: type, name, Green/Orange/Red level, countries, dates, coordinates, report URL. 15 min cache.

Legal entity reference data from the GLEIF LEI golden copy (updated daily, CC0). Direct lookup: ?lei=529900FCMZ4LKXFD0R69. Search: ?name=airbus&country=FR&limit=5. Each result: lei, legal_name, entity_status, registration_status (ISSUED/LAPSED), jurisdiction, legal_form_id, hq_city/country, next_renewal_date. 24h cache.

Annual macroeconomic series from the World Bank Indicators API, normalized JSON. Query: ?country=USA&indicator=FP.CPI.TOTL.ZG&years=5 (ISO3 country code; common indicators: FP.CPI.TOTL.ZG inflation %, NY.GDP.MKTP.CD GDP current US$, GC.DOD.TOTL.GD.ZS gov debt %GDP, SL.UEM.TOTL.ZS unemployment %). Returns the last N years with values, newest first. 200+ countries; 24h cache.

Daily river discharge forecast from the Copernicus GloFAS model (5 km grid) served via Open-Meteo Flood API, data CC-BY 4.0. Query: ?latitude=45.75&longitude=4.85&forecast_days=7 (1-210 days; daily=river_discharge,river_discharge_max for extra variables). Returns ISO date + m3/s arrays -- flood risk, inland shipping (Rhine/Danube) and hydropower planning. 6h cache.

Who owns whom, from the official GLEIF LEI graph (CC0 licensed, covers 2.5M+ legal entities worldwide). Query: ?lei=5493001KJTIIGC8Y1R12. Four GLEIF lookups in one call: entity name and status, declared direct parent, ultimate parent, plus the total count and a 10-entity sample of direct children. Unknown LEI returns found=false. 24h cache.

One merged call instead of two: latest-version metadata from the official npm registry plus last-week download count from api.npmjs.org (both live). Query: ?pkg=react (scoped names like @scope/name accepted). Returns version, license, deps_count + dependency names, engines, weekly_downloads. No personal maintainer data. 1h cache.

Real-time oracle prices from Pyth Network (Hermes API): aggregate price, confidence interval (uncertainty band), EMA price and publish_time per asset, all vs USD. Query: ?symbols=btc,eth,sol (1-8 of: btc, eth, sol, bnb, xrp, ada, avax, doge, link, dot, usdc, usdt). Cross-check against CEX spot to detect oracle/spot divergence. 30s cache.

Hourly sea-state forecast from Open-Meteo Marine wave models: wave height/direction/period, wind waves and swell, up to 7 days, UTC. Query: ?port=marseille|ajaccio|nice|... (12 Mediterranean presets) or ?latitude=43.3&longitude=5.4, plus ?days=1-7 (default 2). Includes a summary block (max wave height next 24h / full horizon). 1h cache. For sailing go/no-go, port ops and routing.

Upcoming space launches worldwide from Launch Library 2 (The Space Devs): launch window (NET, window start/end), provider, pad and location, mission name/type/orbit, go/TBD status. Query: ?limit=10&search=falcon&provider=SpaceX&net_gte=2026-08-01&net_lte=2026-09-01 (all optional). Served from a 1h cache (upstream is rate-limited); count field gives the full upcoming total.

Circulating supply per stablecoin from DeFiLlama with computed net flows (delta_24h/delta_7d/delta_30d = net mint minus burn), peg type, peg mechanism and current price. Query: ?symbol=USDT for one asset, or ?top=10 (1-50, default 10) for the largest by supply. Served with a 30min cache.

Monthly average interest rates the US Treasury pays on its outstanding securities, from the official FiscalData API (Average Interest Rates dataset, updated monthly). Query: ?security=Treasury Bills (exact security_desc, optional; e.g. Treasury Notes, Treasury Bonds) &since=2026-01-01 (optional record_date floor) &limit=12 (1-100, newest first). Returns record_date, security type/name and avg rate in percent. Cached 24h.

Active weather alerts from the US National Weather Service (NOAA, public domain, real-time feed). Query: ?area=CA (2-letter state code) or ?point=34.05,-118.24; optional severity=Extreme|Severe|Moderate|Minor and event='Tornado Warning'. Returns up to 50 normalized alerts: event, severity, urgency, headline, affected areas, onset/expiry. count=0 means no active alert matches. 2 min cache.

One-call email verification for lead qualification and list hygiene: RFC 5322 syntax check, then a live MX lookup over DNS-over-HTTPS (Cloudflare, Google fallback). Detects non-existent domains (NXDOMAIN), null-MX domains that refuse mail (RFC 7505), and returns prioritized MX hosts. Query: ?email=someone@example.com. Verdict: deliverable | risky | undeliverable. 1h cache per address.

Decodes a Vehicle Identification Number through the official US regulator's vPIC database (public domain): make, model, year, body class, engine, transmission, GVWR and assembly plant. Query: ?vin=1HGCM82633A004352 (partial VINs with '*' accepted, optional &model_year=2003). error_code/error_text carry vPIC's structural verdict. Static reference data, 24h cache.

Official Czech business register lookup via ARES (Ministry of Finance, ares.gov.cz). Query: ?q=skoda or ?q=00177041 (company name or 8-digit ICO), optional limit (1-10). Returns ICO, DIC (CZ VAT number, cross-checkable in EU VIES), legal form, registered address, NACE activity codes, per-register status (commercial, trade, VAT) and creation date. Company data only, personal data stripped (GDPR). 24h cache.

Live EORI (Economic Operators Registration and Identification) validation via the European Commission EOS/DDS2 service -- the number every business needs to clear customs in the EU. Query: ?eori=FR38347481400100 (2-letter country + up to 15 alphanumerics). Returns valid true/false plus registered name and address when the operator consented to publication. SOAP upstream, clean JSON out; 24h cache.

Official Finnish company registry via PRH YTJ open data v3 (avoindata.prh.fi). Query: ?q=nokia for name search (best matches first, max 10) or ?q=0112038-9 for exact Business ID lookup. Returns business_id, EU BRIS id, current name, company form, main business line, registration date, status, end date, website and address per company. Company data only, no personal data (GDPR). License CC BY 4.0. 24h cache.

Irish company registry search on CRO open data (opendata.cro.ie, daily snapshot of the Companies Registration Office register). Query: ?q=ryanair (full-text name search) or ?q=249885 (company number), optional limit (1-10, default 3). Returns company number, name, status, type, registration and dissolution dates, registered address, NACE code, last annual return and accounts dates. Company data only. CC-BY 4.0. 24h cache.

Official Norwegian company registry (Enhetsregisteret) via data.brreg.no, Bronnoysund Register Centre. Query: ?q=equinor or ?q=923609016 (name or 9-digit orgnr), optional size (1-10, name search). Returns orgnr, legal form, NACE code, business address, registration date, employees, VAT registration, bankruptcy and liquidation flags per company. NLOD 2.0 licensed, personal data stripped. 24h cache.

Polish company due diligence in one call, combining Biala Lista VAT (Ministry of Finance) and the KRS court registry. Query: ?nip=7740001454 or ?krs=0000028860 (digits only). Returns VAT status, name, REGON, KRS, address, government-verified bank accounts (anti-fraud), plus legal form, capital, registration date and insolvency signals (KRS dzial 6: bankruptcy, restructuring, liquidation). Personal data stripped (GDPR). 24h cache.

Official Slovak business registry (RPO) search via api.statistics.sk (Statistical Office of the SR). Query: ?q=31333532 (8-digit ICO) or ?q=eset (name; historic names also match, current-name hits rank first). Optional active_only=true, limit 1-5. Returns per entity: ICO, current name, legal form, address, source register, establishment/termination dates. Personal data of individual entrepreneurs is stripped (GDPR). 24h cache.

Hourly air-quality data (PM2.5, PM10, ozone, NO2, European/US AQI) for any lat/lon, from the Copernicus CAMS model served by Open-Meteo (CC-BY 4.0), updated hourly. Query: ?latitude=48.8566&longitude=2.3522&hourly=pm2_5,pm10,european_aqi&forecast_days=2 (1..7 days). Returns parallel time/value arrays with units; cached 1h.

Latest METAR observation, decoded, for any ICAO airport worldwide (NOAA AviationWeather.gov): wind direction/speed/gust (kt), temperature/dewpoint (C), visibility, QNH altimeter (hPa), flight category (VFR/MVFR/IFR/LIFR) plus the raw METAR string. Query: ?ids=KJFK,LFPG (1-10 comma-separated ICAO codes). Observations refresh every 30-60 min; 5 min cache.

Resolves an ISBN-10 or ISBN-13 to a normalized bibliographic record from Open Library (Internet Archive): title, authors, publishers, publish date, page count, ISBN identifiers, subjects and cover image URL. Query: ?isbn=9780140328721 (hyphens/spaces tolerated). Unknown ISBNs return 400 (not charged). 7-day cache. Built for catalog management, e-commerce listings and used-book pricing agents.

Official Bank of Canada Valet observations, normalized JSON. Query: ?series=FXUSDCAD,FXEURCAD&recent=5 (1-10 comma-separated codes; FX pairs like FXUSDCAD/FXEURCAD/FXGBPCAD, overnight target rate V39079, prime rate V80691311). recent=N returns the last N daily observations (default 1, max 60). Primary-source CAD reference, published each business day; 6h cache.

Hourly EPEX Spot day-ahead electricity prices in EUR/MWh from the aWATTar market data API, normalized to ISO 8601 UTC with min/max/avg summary. No params -> rolling ~24h day-ahead window; ?zone=de|at selects the bidding zone, ?start=&end= (ISO 8601 or epoch) select history. Day-ahead data updates once daily; served with a 1h cache.

Current Hacker News front page via the official Firebase API, fanned out and merged into one payload: id, title, url, score, comment count and age in minutes per story. Query: ?n=20 (1-30 stories) &min_score=100 (optional score floor). Real-time tech signal for launch/incident/buzz detection. 5min cache.

Live DNS records resolved via Cloudflare 1.1.1.1 DNS-over-HTTPS (public facts, real time). Query: ?name=anthropic.com&type=MX (type in A|AAAA|MX|TXT|NS|CNAME, default MX). Or ?name=anthropic.com&check=email -> combined MX + SPF + DMARC with an email_ready boolean, useful before emailing or invoicing a contact. JSON with records list; 5 min cache.

Live Ethereum mainnet gas pricing from PublicNode RPC: next-block base fee, 25/50/75th-percentile priority tips over the last 5 blocks (slow/std/fast), and a ready-to-sign recommendation (max_fee = 2*base + tip). Query: ?speed=slow|std|fast (default std). All values are decimal gwei, no hex parsing needed. 30s cache.

Euro Short-Term Rate (ESTR), the official euro overnight benchmark, direct from the ECB Data Portal (dataset EST, published each TARGET2 business day ~08:00 CET). Query: ?last_n=5 (1-30 fixings, default 1) &include_volume=true to add the underlying transaction volume in EUR millions. Returns date-sorted observations plus the latest fixing; 1h cache.

Monthly HICP inflation as annual rate of change (%) from Eurostat dataset prc_hicp_manr, the official primary source. Query: ?geo=EA|FR|DE|EU27_2020 &coicop=CP00 (all items) | CP011 (food) | CP045 (energy) &last_n=12 (1-24 months, default 1). Returns date-sorted observations plus the latest print; 24h cache. Data: Eurostat, CC BY 4.0.

Current levels of the three ECB key interest rates -- main refinancing operations (MRR_FR), deposit facility (DFR) and marginal lending facility (MLFR) -- straight from the official ECB Data Portal (dataflow FM, daily levels). Query: ?last=N (1-60, default 1) to include the N most recent daily observations per rate. Returns latest values plus dated series, in percent per annum; served with a 6h cache.

Near-real-time pump prices (EUR/L) for French gas stations from the official roulez-eco feed (data.economie.gouv.fr, updated continuously). Query: ?dept=75 (departement code) and/or ?city=Lyon, optional &fuel=gazole|sp95|sp98|e10|e85|gplc to sort cheapest-first and drop stations without that fuel, &limit=10 (1-40). Returns per station: address, lat/lon, per-fuel price with update timestamp, 24/7 automat flag. Cached 10 min.

Latest observed 15-min records from RTE's eCO2mix national real-time dataset (ODRE portal, Licence Ouverte 2.0). Per record: UTC timestamp, consumption vs D/D-1 forecasts (MW), production by source (nuclear, wind, solar, hydro, gas, coal, bioenergy, storage), grid CO2 intensity (g/kWh) and commercial exchanges per border. Query: ?rows=1-12 (default 4 = last hour). 15-min cache.

European Central Bank reference exchange rates for any past date or date range (business days since 1999-01-04), via frankfurter.dev. Query: ?date=2026-05-01 for one day, or ?start=2026-05-01&end=2026-05-08 for a daily series (max 366 days), plus ?base=EUR&symbols=USD,GBP (symbols optional -> all). Series responses nest rates by date. Historical data is immutable; served with a 24h cache.

Carbon intensity of Great Britain's electricity grid from the official NESO Carbon Intensity API (CC BY 4.0), in half-hour periods with a low/moderate/high index. No params -> current national half-hour; ?horizon=fw24h|fw48h adds the forecast; ?region=1..17 (13=London) switches to a DNO region and includes the generation mix per fuel. 30-min upstream cadence, 30-min cache.

Near-real-time Great Britain national electricity demand outturn from the Elexon Insights (BMRS) open API: 5-minute MW readings sorted oldest to newest (default: last 24h = 288 points), plus a 'latest' field with the most recent value. ?last=N (1-500) sets how many recent points to return, e.g. ?last=12 = last hour. Upstream updates every ~5 min; served with a 5-min cache.

Latest earthquakes from the USGS real-time catalog (public domain, updated within minutes). Query: ?minmagnitude=4.5&limit=20; optional starttime/endtime (ISO 8601), geographic filter latitude+longitude+maxradiuskm, alertlevel=green|yellow|orange|red (PAGER). Returns a normalized list: magnitude, place, UTC time, coordinates, depth, tsunami flag, significance. 5 min cache.

Offline validation of intermodal container numbers per ISO 6346: owner code, equipment category (U/J/Z), serial and check-digit verification (mod-11 with power-of-2 weights). Catches transcription errors before a booking or B/L is filed. Query: ?container=CSQU3054383. Returns valid flag, parsed parts and the computed check digit. Deterministic, cached 1 year.

Nord Pool day-ahead electricity spot prices (EUR/MWh, 15-min resolution) for the ee, fi, lv and lt bidding zones, from the Estonian TSO Elering's open-data API. Defaults to the last 24h; ?start=&end= (ISO 8601 UTC, max 7 days) select a window, ?zone=fi filters one zone. Day-ahead prices publish once daily; served with a 1h cache.

Real browser-side adoption signal from the official jsDelivr Stats API: global CDN hit rank, rank within npm, total hits over the period, previous-period comparison and a derived trend (up/down/flat, lower rank = more popular). Query: ?pkg=react&period=week (period: day, week, month, year). Complements npm download counts; cached 6h.

Headline national CPI, year-on-year growth rate (%), monthly, from the official OECD SDMX API (dataset DSD_PRICES@DF_PRICES_ALL). Complements Eurostat HICP with USA, GBR, JPN, CAN and other OECD economies under one methodology. Query: ?country=USA (REF_AREA code) &last_n=12 (1-24 months, default 1). Returns date-sorted observations plus the latest print; 24h cache. Recency varies by country; series older than 18 months are refused (502, not charged). Data: OECD, CC BY 4.0.

Latest-release metadata from the official PyPI JSON API (live): version, license, requires_python compatibility, requires_dist dependency specs (max 100), yanked flag, last upload time and project URLs. Query: ?pkg=requests. No personal author/maintainer data. 1h cache.

Latest 1-minute estimated planetary Kp index from NOAA SWPC, with a boolean storm flag (estimated_kp >= threshold, default 5 = G1 storm). Query: ?last=1..60 (trailing minutes returned in 'series'), ?threshold=0..9. Signals GPS/GNSS degradation, satellite drag, HF blackouts and grid stress. 60s cache.

Total US public debt outstanding from the official Treasury Debt to the Penny dataset (FiscalData API, published every business day ~3pm ET). Query: no params -> latest data point; ?limit=30 (1-100, newest first) and ?since=2026-01-01 (record_date floor) for history back to 1993. Returns per day the debt held by the public, intragovernmental holdings and total, in USD. Cached 6h.

Deterministic ISIN check before routing an order or paying a market-data API: structure regex (2-letter country or XS/EU, 9-char NSIN, check digit) and the Luhn checksum over the base-36 expansion. Query: ?isin=US0378331005. Returns valid, country_code, nsin, check_digit and is_international. A corrupted ISIN means a rejected order or the wrong instrument. Pure offline computation, 1y cache.

Deterministic Legal Entity Identifier check for regulatory reporting pipelines (EMIR, MiFID II require a valid LEI per counterparty): structure regex and ISO 7064 mod 97-10 checksum over the 20-char code. Query: ?lei=HWUPKR0MPOU8FGXBT394. Returns valid, lou_prefix, entity_part and a failure reason. Filters typos before hitting the GLEIF registry (see /v1/global/lei for the live record). Pure offline, 1y cache.

Recommended Bitcoin transaction fee rates in sat/vB (fastest, half-hour, hour, economy, minimum) from mempool.space, computed from the live mempool. Optional ?include=difficulty adds the current difficulty retarget estimate (change %, remaining blocks/time). No required params; served with a 60s cache.

Official French administrative reference from geo.api.gouv.fr (INSEE/IGN data). Look up communes by ?cp=31700 (postal code), ?code=31056 (INSEE), ?nom=Blagnac (fuzzy name) or ?lat=43.63&lon=1.37 (commune containing a point). Returns up to 20 communes with name, INSEE code, population, postal codes, departement, region and EPCI. The postal-to-INSEE mapping is the pivot key for joining French territorial datasets. Cached 7 days.

French address geocoding on the official Base Adresse Nationale (api-adresse.data.gouv.fr, Etalab/IGN, continuously updated). Forward: ?q=8 boulevard du port amiens with optional &type=housenumber|street|locality|municipality &citycode=80021 (INSEE filter). Reverse: ?lat=49.897&lon=2.290. &limit=1-10 (default 3). Each match returns normalized label, confidence score, lat/lon, street, postcode, city, INSEE citycode and context. No match returns 400 (not billed). Cached 24h.

Instant pre-validation of French company numbers before invoicing or costly Sirene API calls. Auto-detects SIREN (9 digits) vs SIRET (14 digits), applies the INSEE Luhn rule and the documented La Poste exception (356000000*: digit sum mod 5). Query: ?number=44306184100047 (spaces/dots/dashes tolerated). Returns valid, type, siren, nic and the rule applied. Pure offline computation, 1y cache.

Latest European Central Bank reference exchange rates, normalized JSON. Query: ?base=EUR&symbols=USD,GBP,JPY (symbols optional -> all). Rates update once per working day; served with a 1h cache.

Postal code resolution for ~60 countries via Zippopotam.us (GeoNames data, CC BY 4.0). Forward: ?country=us&code=90210 -> place names, state, lat/lon. Reverse: ?country=us&state=ca&city=beverly hills -> matching postal codes with coordinates. Unknown codes return found=false (an explicit validation verdict). Cached 30 days.

Offline validation of product barcode numbers: EAN-8, UPC-A, EAN-13 and GTIN-14, using the GS1 mod-10 weighted checksum. Catches corrupted GTINs in supplier catalogs before marketplace publication (Amazon/Google reject invalid GTINs). Query: ?gtin=4006381333931. Returns valid flag, detected format, GS1 member-org prefix and the computed check digit. Deterministic, cached 1 year.

Current wall-clock time for any IANA timezone, resolved live by timeapi.io (IANA tz database, includes DST rules). Query: ?tz=Europe/Paris (or America/New_York, Asia/Tokyo...). Returns ISO datetime, date, time, day_of_week and dst_active flag. Served with a 60s cache.

Deterministic BIC/SWIFT check before an international payment: ISO 9362 structure (4-letter bank, 2-letter country, 2-char location, optional 3-char branch) plus a real ISO 3166-1 country-code verification. Query: ?bic=BNPAFRPP or ?bic=DEUTDEFF500. Returns valid, parsed parts and is_test_bic (8th char '0'). Pairs with /v1/validate/iban for country-consistency checks. Pure offline computation, 1y cache.

Deterministic IBAN check before a SEPA/international transfer: format regex, per-country length (public SWIFT registry, ~85 countries) and ISO 7064 mod-97 checksum. Query: ?iban=FR1420041010050500013M02606 (spaces/dashes tolerated). Returns valid, country, bban, and a precise failure reason. Pure offline computation, 1y cache.

Full list of official public holidays for one country and year, from the Nager.Date registry (100+ countries, legally accurate dates). Query: ?country=FR (ISO 3166-1 alpha-2, required) &year=2026 (1975-2077, defaults to current year). Returns date, English + local name, nationwide flag, regional counties and holiday types per entry. Cached 24h.

Hourly weather forecast for any point on Earth from Open-Meteo (blend of ECMWF/GFS/ICON models, refreshed hourly; data CC-BY 4.0). Query: ?latitude=48.8566&longitude=2.3522&hourly=temperature_2m,precipitation,wind_speed_10m&forecast_days=2 (1-16 days, ~80 hourly variables available, optional daily= aggregates and timezone=auto). ISO 8601 time arrays + units. 15 min cache.