Holdings an institutional manager reported in its latest SEC 13F (Berkshire, Bridgewater, Renaissance, ARK...): positions with value, shares and weight, total value and changes vs the previous quarter (new, increased, reduced, sold out). Search by manager name or CIK.

Estimate password strength with Dropbox's zxcvbn: score 0-4, estimated guesses and crack time for online and offline attacks, weak patterns found (dictionary, dates, sequences...) and tips. Evaluated in memory, never stored or logged.

Perpetual funding rates on Hyperliquid, dYdX, Paradex and Aevo normalized to 1h, 8h and annualized APR. For one coin it compares venues and the long/short spread; without a coin it lists the biggest cross-exchange funding spreads (funding arbitrage).

Gas price right now on Base, Ethereum, Arbitrum, Optimism and Polygon, with the estimated USD cost of a native transfer, an ERC-20 transfer and a swap on each, and the cheapest chain.

Fee history of the last N blocks on an EVM chain (eth_feeHistory): base fee per block, gas usage and priority tips at the 10th, 50th and 90th percentiles, with a tip recommendation to get included fast. 12 chains.

Gas price and latest block right now on BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain, with the cost of a simple transfer in native coin.

Average household natural gas price (20-200 GJ/year band) in EUR/kWh by European country, with or without taxes: ranking or half-yearly evolution of one country. Official Eurostat data.

Live gas price on Base or Ethereum (gwei, base fee, priority fee) plus estimated USD cost of an ETH transfer, an ERC-20 transfer and a DEX swap, including Base L1 data fee. Priced with the Chainlink ETH/USD oracle.

Cheapest petrol stations in Spain for a fuel (gasoline 95/98, diesel, LPG, CNG, AdBlue, hydrogen) by town, province or near coordinates: price, brand, address, opening hours and distance, plus the area's average. Official Ministry prices, updated every 30 minutes.

Generate a barcode as SVG (EAN-13, EAN-8, UPC-A, ISBN, ISSN, Code 128, Code 39, ITF, GS1-128...) for labels and products, computing the check digit when missing.

Generate a JSON Schema (draft 2020-12) from an example JSON: types, properties, arrays, required fields and formats (date, date-time, email, uri). For API docs, tool definitions and output validation.

Generate cryptographically secure unique IDs: UUID v4, time-sortable UUID v7, ULID, NanoID, hex, base58 or prefixed tokens (e.g. ord_...), up to 1000 per call.

Generate a QR code as SVG or PNG (base64 and data URI) for any text, URL, payment link, Wi-Fi or vCard, with error-correction level, scale and colors.

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.

Distance between two coordinates (Vincenty geodesic on WGS84 plus great-circle), in km, miles and nautical miles, initial bearing and compass direction, midpoint and estimated time on foot, by car and by plane.

Turn a Spanish address, street, town or place into coordinates with the official CartoCiudad geocoder (IGN): normalized address, municipality and INE code, province, region, postcode and lat/lon.

Nearest address to coordinates in Spain with the official CartoCiudad reverse geocoder (IGN): street and number, postcode, municipality, INE code, province, region and cadastral reference.

Governance proposals of a DAO on Snapshot by its space (aavedao.eth, uniswapgovernance.eth, cow.eth...): title, state, close date, total votes and results per option. For agents that follow or vote on a protocol's decisions. Live from Snapshot.

Daily price series of a token for up to 365 days with change, high, low, maximum drawdown and annualized volatility. Accepts symbols (BTC, ETH, SOL...) or chain:contract ids. Aggregated by DefiLlama.

What's being read on Hacker News now: top, new, best, Ask HN, Show HN or jobs stories with points, comments, author, age and link. A pulse of tech, AI and startups.

Hedera account (0.0.x or EVM address): HBAR balance, associated HTS tokens with balances, staking node, pending reward, creation date and USD value.

Hedera network status: the official HBAR/USD exchange rate the network uses to compute fees (current and next), circulating and total supply, latest block and market price.

Average US mortgage rates from Freddie Mac's weekly PMMS survey: 30- and 15-year fixed, latest value, weekly and yearly change and recent series.

Average interest rate on new mortgages (cost of borrowing for house purchase) and new consumer credit in a euro area country, with monthly evolution; without a country, a ranking. Official ECB MFI interest rate statistics.

Trusted UTC time (NTP-synced server clock) with millisecond Unix timestamps, ISO week and the latest Ethereum and Base block times as independent references. For timestamping and clock checks.

World stock exchanges clock: status (open, closed, lunch break), local time, today's session and next open for NYSE, Toronto, London, Euronext, Xetra, Madrid, Zurich, Tokyo, Hong Kong, Shanghai, India and Sydney.

US stock market clock (NYSE/Nasdaq): open, closed, pre-market or after-hours now (or at a given time), holiday reason, early closes, next open/close and upcoming holidays. Key for 24/7 tokenized stocks.

AI models on Hugging Face: trending, most downloaded or most liked, filtered by name and task (text-generation, image-text-to-text, automatic-speech-recognition...): author, downloads, likes, task, license and creation date.

How the 150 largest actively trading Hyperliquid accounts are positioned: per coin long and short notional, bias, number of whales on each side, average entry and unrealized PnL; or, for one coin, every whale position with entry, liquidation and leverage.

Basis of Hyperliquid perpetuals: mark vs oracle (spot) price in basis points, premium, hourly and annualized funding and open interest; ranked by funding extremes or for one asset. For basis and cash-and-carry strategies.

Hourly funding history of a Hyperliquid perpetual over 1-30 days: average, max, min, % of positive hours, annualized rate and a daily series. For carry and basis strategies.

Order book of a Hyperliquid perpetual: best bid/ask, spread in basis points, mid price, top levels and USD liquidity within ±0.5%, ±1% and ±2% of mid. Use it to estimate slippage before trading.

Liquidation map of the largest Hyperliquid accounts for a coin: at which prices their longs (below) and shorts (above) would be liquidated, bucketed with the notional at risk, and the closest levels to the current price.

Perpetual futures markets on Hyperliquid: mark price, annualized funding rate, open interest and 24h volume for each asset. Search by asset or rank by volume, open interest, funding or 24h move. Live open on-chain data.

Latest trades executed by any wallet on Hyperliquid: asset, side, open/close direction, price, size, USD value, realized PnL and fee, with totals. Track a trader or audit a bot.

Open perpetual positions of any wallet on Hyperliquid: side, size, entry, unrealized PnL, ROE, leverage, liquidation price, margin and funding paid, plus account value and withdrawable. Live open on-chain data.

Current mid price of every Hyperliquid asset, or the ones you ask for (BTC, ETH, SOL, HYPE...), in one fast and cheap call.

Hyperliquid trader leaderboard by PnL, ROI or volume over the day, week, month or all time, with account value (accounts without trading volume, like vaults, are excluded). Find top traders and whales to follow; see a wallet's positions with hyperliquid-posiciones.

Hyperliquid spot pairs: price, 24h change, 24h volume and market cap (circulating supply x price). Search a token or rank by volume, market cap, gainers or losers.

Hyperliquid validators for HYPE staking: name, stake and share, commission, active or jailed, recent blocks, daily uptime and predicted APR. Choose where to delegate HYPE.

Hyperliquid vault (HLP or a trader's vault): APR, assets under management, PnL over 1 day, 7 days, 30 days and all time, depositors, leader commission and share, and whether it accepts deposits.

OHLCV candles of a Hyperliquid perpetual (1m, 5m, 15m, 1h, 4h, 1d, 1w; up to 500) with period change, high, low and annualized volatility. Prices from Hyperliquid's own open market.

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 and link over the next N days; text filter.

Detect the language of a text without AI (55 languages, statistical langdetect model) with probability and alternatives. Fast and cheap for routing messages or choosing a translation.

Convert and resize an image (URL or base64) to WebP, JPEG or PNG keeping aspect ratio and stripping EXIF/GPS metadata; returns base64 and a data URI with the size saving.

Metadata of an image (URL or base64): format, dimensions, color mode, transparency, size, DPI, animation and EXIF (camera, date, software), flagging embedded GPS location.

Images on a page with URL, alt text, declared size, lazy loading and format, counting images without alt text and flagging missing modern formats. For accessibility and SEO audits.

Active traffic incidents on Spanish roads from the DGT: roadworks, accidents, queues, closures, adverse weather..., with road, kilometre point, province, municipality, coordinates and start time; filter by province, road and cause.

OECD Composite Leading Indicator, which anticipates turning points of the business cycle 6-9 months ahead: value (100 = trend), monthly change and phase (expansion, downturn, slowdown, recovery) for major economies, G7 and OECD, or one country's series.

Key indicators of any country: GDP, real growth, GDP per capita, inflation, population, unemployment, public debt, exports, life expectancy and internet use, with the last years of each. World Bank open data.