Snapshot history

Get historical electricity spot prices for a specific Nordic bidding zone over a custom date range. Returns hourly prices for every day in the range. Useful for analyzing long-term electricity price trends, calculating average costs over billing periods, building historical price charts, and performing seasonal analysis of energy costs in Norway and Sweden. Data from Nord Pool.

Time series of Estonia-Russia border queue lengths at Narva, Koidula, and Luhamaa, recorded every 15 minutes. Nobody else archives this publicly. Filter by ?crossing (narva/koidula/luhamaa) and ?start/?end. Useful for journalists, logistics firms tracking freight delays, travelers planning trips, and researchers studying the effects of geopolitical events on cross-border traffic.

Lifecycle view of Elektrilevi outages: one row per distinct outage, with first_seen_at, last_seen_at, resolved_at, duration_seconds, and peak customers affected. Filter by ?status=active|resolved and ?start/?end. Useful for MTTR analytics, incident counts by cause, and studying how fast the grid recovers from storms and faults.

Per-area snapshots of Estonian Elektrilevi outages, sampled every 5 minutes. Returns unplanned/planned outage counts and affected customers per area per snapshot. Filter by ?area_id and ?start/?end. Useful for computing regional reliability metrics, ranking areas by outage frequency, and building long-term infrastructure dashboards.

Time series of Estonian grid state snapshots (production, consumption, frequency, system balance, renewable production, solar production) collected every 5 minutes from the Elering TSO dashboard. Nobody else archives this publicly. Filter with ?start and ?end. Useful for analyzing consumption patterns, correlating grid frequency with imbalances, tracking the growth of solar capacity, and studying the impact of weather on renewable output.

Retrieve historical daily prices for any commodity over a custom date range. Returns an array of date-price pairs in USD. Useful for charting commodity price trends, performing technical analysis on gold or oil, backtesting commodity trading strategies, and building historical comparison tools that show how commodity prices moved during specific economic events.

Get historical price snapshots for any of the top 50 cryptocurrencies. Prices are recorded every 10 minutes, giving up to 144 data points per day per coin. Filter by date range or limit the number of results. Ideal for building price charts, backtesting strategies, and tracking price trends over time.

Retrieve exchange rates for any specific past date. Provide a date in YYYY-MM-DD format in the URL path, and optionally filter by base currency and target symbols. Useful for generating historical invoices, auditing past transactions, back-testing trading strategies, and building exchange rate charts. Data sourced from ECB daily reference rates.

Access the deep historical exchange rate archive with data going back to January 1999, sourced from the European Central Bank. Retrieve rates for any single date in the archive by providing it in the URL path. Supports base currency and symbol filtering. Ideal for academic research, long-term trend analysis, historical financial reporting, and apps that need exchange rates from specific past events.

Retrieve exchange rates for every day within a historical date range from the ECB archive (back to 1999). Returns daily rates for the specified base and target currencies across the entire range. Perfect for building long-term exchange rate charts, academic datasets, economic history visualizations, and backtesting financial models across months or years of data.

Look up the price of a specific precious metal (gold, silver, platinum, or palladium) on any past date. Provide the metal name and date in the URL path. Returns the USD price for that date. Useful for historical portfolio valuation, insurance appraisals, academic research on metal price trends, and comparing metal performance against other assets over time.

Get daily exchange rates for every day within a specified date range. Returns a map of dates to rate objects, perfect for plotting exchange rate charts and trend lines, performing time-series analysis, or calculating moving averages. Supports filtering by base currency and target symbols to keep response sizes manageable over longer date ranges.

Hourly air quality snapshots for a supported city, recorded by our own workers every hour. Returns PM10, PM2.5, carbon monoxide, nitrogen dioxide, sulphur dioxide, ozone, US AQI, and European AQI. Filter with ?start and ?end. Useful for long-term pollution studies, comparing cities, evaluating trends for regulatory reporting, and powering dashboards without rate limits on upstream providers.

Historical pollen data for a station with date range. Up to 5 years of hourly sensor data. Supports daily aggregation for longer ranges. Useful for seasonal pattern analysis, year-over-year allergy trend comparisons, and research into pollen season timing shifts.

Hourly weather snapshots for a supported city, stored continuously by our own workers from the top of every hour. Returns temperature, apparent temperature, humidity, precipitation, wind speed/direction, weather code, and cloud cover. Filter with ?start and ?end (ISO 8601 or YYYY-MM-DD). Useful for building long-running climate dashboards, comparing conditions across cities over time, and analyzing hourly weather patterns without hitting upstream archive APIs.

Retrieve historical weather data for any location and date range from the Open-Meteo archive. Returns daily temperature, precipitation, wind, and other weather variables for past dates. Requires latitude/longitude coordinates and a date range. Useful for climate analysis, agricultural research, insurance claims verification, event post-mortems, and comparing current conditions to historical norms.

Time series of UK grid carbon intensity (forecast + actual + index) with the full generation mix preserved at each 30-minute interval. Stored continuously by our own workers. Filter with ?start and ?end. Useful for long-range decarbonisation analysis, correlating carbon intensity with weather or power prices, and researching the UK grid's transition away from fossil generation.

Global COVID-19 pandemic statistics including total cases, deaths, recovered, active cases, critical cases, tests administered, and per-million rates. Historical data preserved as a public health reference. Data from disease.sh aggregating Johns Hopkins, Worldometers, and government sources.

Global COVID-19 vaccination coverage over the last 30 days showing daily and cumulative doses administered worldwide. Useful for tracking vaccination progress and public health research.

Archive of issued NOAA SWPC alerts: geomagnetic storm watches, solar radiation storms, radio blackout warnings, and more. Filter by ?start and ?end. Ideal for post-mortems on specific events, training data for alert prediction models, and historical context when an alert fires today.

Historical GOES X-ray flare flux readings archived continuously. Filter by ?energy band (short/long) and ?start/?end. Useful for studying solar flare distributions, correlating flares with aurora or radio-blackout events, and long-term analysis of solar-cycle activity.

Full time series of planetary Kp index readings collected continuously from NOAA SWPC. Filter with ?start and ?end. Valuable for aurora forecasters correlating past activity with sightings, space weather researchers studying storm distributions, and dashboards plotting geomagnetic trends over months or years.