the402 x402 endpoint directory

Fits a constant-elasticity demand curve to the price and sales series you supply and returns the elasticity with its s

Takes a message history and a character budget and returns a shortened history together with a full account of what it

Takes a list of candidate intents, each described by attributes, plus whatever is already known, and returns the one a

Pay-per-call MCP gateway: 12 tools (markdown, token_price, wallet_portfolio, whale_alerts, cross_chain_balance, change

Pay-per-call MCP gateway: 12 tools (markdown, token_price, wallet_portfolio, whale_alerts, cross_chain_balance, change

US electricity grid demand (MWh/hour) from EIA. POST body: {ba, length, start?}.

Token balances for any wallet across 20+ chains — EVM, Solana, Bitcoin

Run code in isolated sandbox — Python, JavaScript, Bash, R (up to 5 min)

Queries three abuse.ch metadata services for an MD5, SHA-1 or SHA-256 value. It reports known malware metadata, associ

In search mode, finds UK companies by name. In monitor mode, fetches the current company profile and filing history an

Returns scheduled economic-data release dates from the Federal Reserve Bank of St. Louis for a caller-selected window

Searches the Sigstore Rekor log for entries matching an artefact hash and returns what a provenance claim is actually

Returns European Central Bank reference rates through frankfurter.dev: one base currency against the symbols you name,

Reports what actually moves through a European port and how that developed, from the quarterly Eurostat port statistic

Queries the European Patent Office Linked Open Data endpoint, which is the only patent source still reachable without

Looks up a legal entity in GLEIF, the worldwide Legal Entity Identifier register, by LEI or by name, and turns the raw

Returns the total value locked of a protocol, its distribution across chains, and the change over one day, seven days

Returns the nutritional values per hundred grams, the Nutri-Score and NOVA processing group, the environmental score w

Returns the ingredient list of a product as a structured hierarchy including sub-ingredients, with each additive resol

Returns what a product declares about allergens: the allergen tags, the trace warnings, the ingredients text in its or

Resolves a term against the EuroVoc thesaurus, the controlled vocabulary EU documents are indexed with, and returns th

Builds a monthly profile of when a species is recorded near a point, from historical occurrence data, and corrects it

Retrieves occurrence records for a species within a radius of a coordinate and returns each with what makes it usable

Takes any common identifier for a chemical and returns the canonical PubChem compound: the CID, molecular formula, mol

Returns the participating sites of a registered trial, each with the facility name, city, state and country, the coord

Searches the device recall database for a product, manufacturer or model and returns each matching recall with the cla

Searches the FDA enforcement database for drug recalls matching a product name, company or date range and returns each

Answers whether a drug carries a boxed warning, the strongest warning class the FDA applies, and returns the warning t

Takes any of the names a medicine goes by and returns the canonical identity behind it: the RxNorm concept with its id

Returns the standard digital adoption indicators per country with their periods, trends and change over the window. Th

Returns the energy import dependency rate for one or more countries, overall and split by solid fossil fuels, oil and

Combines the current wind at an airport with the bearings of its runways to give, per runway direction, the headwind o

Collects the current observation, the terminal forecast, nearby pilot reports and active SIGMETs for the requested air

Calculates the Canadian Fire Weather Index components from an hourly forecast: the Fine Fuel Moisture Code for the sur

Computes reference evapotranspiration by the FAO-56 Penman-Monteith method from hourly forecast data, applies a crop c

Accumulates growing degree days at a location from the hourly forecast, for a base temperature you choose. Two methods

Turns an hourly forecast into the thing that is actually planned around: continuous frost windows. Each window carries

Retrieves water quality results for a monitoring site from the Water Quality Portal and normalises them into a compara

Compares the recent record of a gauge against its own longer history and reports three kinds of finding, kept separate

Clusters earthquakes that are close in space and time into sequences, using a single-link approach with an explicit di

Retrieves the earthquakes within a radius and time window of a point and turns them into an exposure figure. Each even

Takes a list of coordinates and returns the elevation at each, the distance and gradient between consecutive points, t

Takes between two and eight images by URL or inline base64 and compares each pair. Three perceptual hashes are compute

Called without "fields" it inspects: every AcroForm field of the PDF comes back with its name, type, current value, wh

Takes one file, by URL or inline base64, and returns it in the format you ask for. Text documents go through pandoc, s

Searches OpenAlex and Crossref for publications and returns each with its DOI, authors and their affiliations, publica

Queries the Internet Archive for the captured versions of a URL and returns them with capture time, HTTP status, MIME

Searches the official EU open data portal and returns datasets with what decides whether they are usable: the licence,

Searches Tenders Electronic Daily, the EU procurement journal, and returns notices with buyer, title, place of perform

Searches OpenStreetMap through Overpass for businesses of a chosen trade within a radius of a coordinate, and returns