Ubuntu source package versions for every release from Launchpad - newest version, pocket, component, section and publish date per series

US public water systems by state and name from EPA SDWIS - system ID, type, population served, water source, owner type, wholesaler flag

Spain hourly electricity price today - OMIE wholesale spot and PVPC regulated tariff in EUR/MWh with cheapest and priciest hours from Red Electrica

TON account lookup - Toncoin balance, account state (active, uninit, frozen), whether a contract is deployed, wallet type and last transaction reference

NIH-funded research grant search by topic - project number, title, fiscal year, award amount, institute, organization and principal investigators from RePORTER

UK grid carbon intensity in gCO2/kWh with generation mix, the cleanest and dirtiest half hour in the next 24 hours and optional postcode region

Great Britain live electricity generation by fuel from Elexon BMRS - gas, wind, nuclear, biomass, hydro and interconnector flows in MW with shares

Germany live electricity generation by source from Energy-Charts - lignite, gas, wind, solar, nuclear-free mix in MW, renewable share and grid load

Norway (NO1-NO5) and Sweden (SE1-SE4) hourly electricity spot price today in EUR/MWh and local currency with cheapest and priciest hour

Decode 4, 5 and 6 band resistor colors into ohms, tolerance range and temperature coefficient, or encode an ohm value into the nearest E24 color bands

EPA Toxics Release Inventory facility search by US state and city - TRI id, name, address, county, parent company and closed status

University directory search by name, country or domain - ~9,900 institutions with websites and domains

Worldwide earthquakes from the EMSC for the last 1-168 hours at or above a minimum magnitude - region, depth, coordinates, agency and the strongest event

Euro area and EU country inflation from Eurostat HICP - monthly annual rate of change for DE, FR, ES, IT, EA and others, with the latest reading and history

Verified smart contract source and ABI summary from Blockscout - compiler, proxy, read and write function counts, payable functions and owner-style functions to review

Find a token's address and decimals on 11+ chains from the Uniswap default token list by symbol, name or contract address, filterable by chain id

Black-Scholes-Merton price for European calls and puts with delta, gamma, vega, theta, rho, intrinsic and time value, moneyness and put-call parity check

Safe multisig wallet configuration on 8 chains - owners, signature threshold, nonce, enabled modules, guard, version and plain-language risk notes

Decode a 4-byte EVM function selector or 32-byte event topic into candidate signatures from OpenChain and 4byte with the verified one first and collision warnings

Pregnancy due date by Naegele's rule from last period or conception with cycle adjustment, gestational age today, trimester and key milestone dates