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Returns the German Weather Service reference-period values for the station nearest a coordinate: monthly means and annual totals for air temperature, precipitation and sunshine duration, plus the mean annual counts of frost days, ice days, summer days and hot days.

Turns an hourly forecast into the thing that is actually planned around: continuous frost windows. Each window carries its start and end hour, its duration, the lowest temperature within it and the hour that low occurs, so a two-hour dip at dawn is distinguishable from a night-long freeze.

Retrieves water quality results for a monitoring site from the Water Quality Portal and normalises them into a comparable shape. The real work is units: the same measurement appears there as mg/L, ug/L, ppm and mg/l in mixed case, and combining them unchecked puts factor-of-thousand errors into any statistic built on top.

Takes any common identifier for a chemical and returns the canonical PubChem compound: the CID, molecular formula, molecular weight, canonical and isomeric SMILES, InChI and InChI key, the IUPAC name, and the computed properties that decide most downstream work — logP, exact mass, polar surface area, hydrogen bond donors and acceptors, rotatable bonds and formal charge.

Returns what a product declares about allergens: the allergen tags, the trace warnings, the ingredients text in its original language, and the completeness of the record. The distinction it holds to throughout is between not declared and not present. The data come from volunteers and manufacturer submissions, so an empty allergen field means nobody entered one, and for somebody with an allergy that difference is the difference that matters — every absent allergen is therefore reported as not…

Returns carbon dioxide emissions for one or more countries on three bases at once: per inhabitant, per unit of purchasing-power-adjusted output, and in absolute megatonnes, each with its own period and its trend over the requested window. Keeping the three apart is the point. Per capita answers how heavily a person there burdens the climate; per unit of output answers how efficiently value is produced; absolute answers what actually reaches the atmosphere.

Takes any of the names a medicine goes by and returns the canonical identity behind it: the RxNorm concept with its identifier and term type, the active ingredients with their own identifiers, the strengths, the dose forms, and the brand names under which the same substance is sold. Term types are expanded rather than returned as codes, because the difference between an ingredient concept, a clinical drug and a branded pack determines what an identifier can be used for.

Takes one file, by URL or inline base64, and returns it in the format you ask for. Text documents go through pandoc, so DOCX, ODT, EPUB, HTML, Markdown, RST, Org, LaTeX, RTF, MediaWiki, Textile, CSV and Jupyter notebooks convert in both directions. A PDF is a one-way street: its text is extracted with poppler (to markdown, html or plain text) or its pages are rendered to PNG or JPEG at a chosen dpi, but no format converts into PDF here — this machine has no PDF typesetting engine (no LaTeX, no…

Scores how much a package costs to depend on, using the resolved graph rather than a guess. Four measurements: the number of transitive nodes, the maximum depth, how many packages appear at more than one version, and the fan-out of the root. From those comes a grade from A to E with every threshold returned, so the judgement can be recomputed with different weights.

Compares the recent record of a gauge against its own longer history and reports three kinds of finding, kept separate because their causes differ. An extreme level is a reading in the top or bottom percentile of the reference period. An unusual rate of rise is a change per hour exceeding the station own typical rate by a stated factor — this is the figure that matters in a flood and it leads the level rather than following it, so it is reported even when the absolute value is still ordinary.

Searches the device recall database for a product, manufacturer or model and returns each matching recall with the classification and its meaning, the reason, the recalling firm, the dates, the status and — the field that decides whether a specific unit is affected — the product description including lot numbers and serial ranges, quoted verbatim.

Takes the names your organisation publishes internally and checks each against the public registry of the same ecosystem. Three findings, kept apart because they call for different actions. Name is free: nobody has taken it, the door is open but unattended, and the answer is to reserve the name yourself. Name is taken and old: probably an unrelated project that happens to share the name, worth confirming but rarely urgent.

Returns the resolved dependency graph of one package version across seven ecosystems: every node with its ecosystem, name, resolved version, whether it is bundled, and its depth from the root. Depth is computed as the shortest path from the root by breadth-first search — a depth-first walk loops forever on a cyclic graph and recursion overflows the stack on large trees, so neither is used.

Accumulates growing degree days at a location from the hourly forecast, for a base temperature you choose. Two methods are returned side by side: the hourly integration, which is the more accurate, and the conventional average of daily maximum and minimum, which is what agronomic tables and most published thresholds are built on. Reporting only one would either be less accurate or incomparable with the literature, so both are given with the difference between them stated.

Retrieves occurrence records for a species within a radius of a coordinate and returns each with what makes it usable or not: the observation date, the coordinate uncertainty in metres, the basis of record — whether it is a preserved specimen, a human observation or a machine detection — the publishing dataset, and the licence of that record.

Takes between two and eight images by URL or inline base64 and compares each pair. Three perceptual hashes are computed, because each fails differently: an average hash over an 8x8 grey image is cheap but moves with brightness, a gradient hash reads the slope between neighbouring pixels and survives exposure changes, and a DCT hash over the low frequencies of a 32x32 grey image is the sturdiest against rescaling and re-encoding.

Combines the current wind at an airport with the bearings of its runways to give, per runway direction, the headwind or tailwind component and the crosswind component. Runway geometry comes from OpenStreetMap, where runways carry an explicit bearing or one derived from their designator, and both the source and the derivation are stated per runway because a designator gives the bearing only to the nearest ten degrees.

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Returns information about available vaults.

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Validates postal addresses for accuracy and deliverability.

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Looks a marine organism up in the taxonomically curated register rather than in an aggregator, and returns the accepted name with its AphiaID, the authority, the rank, the full classification and the recorded status. Where the queried name is not the accepted one, the accepted name is given together with the status term that explains why — unaccepted, alternate representation, nomen dubium and the rest each mean something different to a taxonomist and are passed through rather than flattened…