Every agent-payable API.

nbx4: Base owner, proxy and token metadata with block evidence, best-effort source match and observed snapshot comparison

Preliminary, limited EVM mechanism evidence from a block-pinned snapshot: matched source syntax, proxy and token state, and optional V2 pool observations. Unknowns remain unknown; not a security audit or sellability verdict.

Solana SPL Token / Token-2022 mint and extension observations from finalized RPC; unknowns remain unknown. Free preparation returns an immutable report ID; paid read costs 0.01 USDC on Base. Not a sellability or safety verdict.

Flagship NFT collection intelligence: fuses identity, floor (native+USD), market cap, volume, total supply, holders and listed count into COMPUTED metrics — liquidity ratio (listed/supply + volume/mcap), holder/supply ratio, sales velocity and floor momentum — plus a normalized market-health verdict with confidence and rationale. EVM via CoinGecko, Solana + Bitcoin-Ordinals via Magic Eden. Keyless, attributed.

Should my agent pay these x402 endpoints? Up to 25 listings from nohumans.directory in one call: pay, caution or avoid for each, with plain reasons, including whether we bought it with real USDC and it delivered.

nohumans.directory demand clusters: what agents searched this directory for over the last 30 days, grouped by meaning rather than exact wording, with searches and distinct-client counts per cluster. Self-monitoring sellers excluded, exclusion published; k-anonymity floor of 3 clients per cluster. The free tier at /v1/demand is the same shape, delayed. Money buys currency and the clustering — never raw queries or client identifiers.

nohumans.directory pre-spend verdict for one listing: probe history, payTo age and stability, paid-delivery outcome, verified verb, and a pay/caution/avoid verdict with reasons.

Normalized multi-period Form 990 financials for a US nonprofit by EIN: revenue, expenses, contributions, program revenue, assets, liabilities, net assets and officer compensation per tax year, plus computed ratios (program support, overhead, officer-compensation share, net margin) and gap flags, each number cited to its filing.

npm breaking changes between two versions of a package, before a package upgrade: the documented breaking changes per version, read from the real CHANGELOG, GitHub release notes and alpha/beta/rc notes, plus major version bumps, Node.js engine, ESM/CJS, exports and peer dependency changes, migration guide links and a verdict. Exact versions or a major ('4'); a source URL for every item. One call per dependency upgrade.

npm changelog between two versions: the full release notes of every version in the range (newest first, up to 100), from the package CHANGELOG and GitHub releases, with publish dates, bump type (major, minor, patch), npm deprecations, extracted breaking changes and package.json manifest changes. Covers a whole package upgrade or dependency upgrade in one call instead of reading dozens of release pages.

An npm package's latest version, description, license, repository, dependencies, peer dependencies, TypeScript types, size, publish dates, deprecation and weekly downloads. Use to choose or audit a JavaScript dependency.

Check npm's official status source for current incidents, component health, and scheduled maintenance before an agent retries, deploys, or escalates.

Download counts of an npm package for the last day, week and month, from the official npm registry API. Use to judge how widely a dependency is used.

Signed full 50-state plug-in solar legality dataset. Free preview: GET /solar-legality/preview If the signer is unavailable it returns 503; you are never charged for an error.

Convert an integer to its English ordinal form (1st, 2nd, 3rd, 4th, 11th, 21st...).

Convert a number's string representation from one base (2-36) to another.

Convert an integer (1-3999) to a Roman numeral, or a Roman numeral back to an integer.

Convert an integer into English words.

Hosted by vAPI for o1.exchange: Get details for one tracked launch token.

Hosted by vAPI for o1.exchange: List tracked launchpad tokens.

Hosted by vAPI for o1.exchange: Get a live exact-input swap quote.

Read any public web page as clean Markdown: main-content extraction (navigation, footers, scripts and hidden elements removed), headings, lists, tables, code blocks, links (absolute, deduplicated), images, plus title, description, canonical URL, language, author and publish date, and a content hash + fetch time as evidence. JSON and plain-text URLs are returned as-is. No JavaScript rendering. $0.001 per page.

Convert between 30 major currencies (USD, EUR, GBP, JPY, CHF, CNY, INR, ILS, AUD, CAD, ...) using the European Central Bank's daily reference rates: rate and converted amount for one or many target currencies, optional historical date back to 1999. Returns the ECB rate date and source. $0.002 per call.

Current prices for cryptocurrencies and tokens by symbol (btc, eth, sol, usdc, ...), CoinGecko slug, or on-chain token address on Base, Ethereum, Arbitrum, Solana and 100+ chains, using DeFiLlama's aggregated DEX/CEX pricing with a per-asset confidence score. Quote in USD or any ECB fiat currency. Up to 25 assets per call. $0.002 per call.

Check a URL before you cite, visit or trust it: liveness, final URL and redirect chain, soft-404 detection, page title, domain registration age (RDAP), robots.txt policy for AI agents, and Wayback Machine snapshot availability. $0.002 per check.

Verify the live price and availability of a product at a URL before you buy or quote it. Fetches the page now, extracts price/currency/availability from JSON-LD, Shopify JSON, OpenGraph or microdata, and returns evidence (method, snippet, content hash, fetch time) plus a confidence score. $0.01 per check.

Rug-pull risk check for an EVM address. Returns a risk verdict (none, low, high or critical) with labels, reasons and linked rug tokens as evidence.

Screen a person or organisation name against the US OFAC SDN list and the EU consolidated financial sanctions list (updated nightly), including aliases, with a match score, list, programme and type. Use it as a first-line sanctions check in KYC, onboarding, payments and trade. Indicative only: always confirm hits against the official lists.

Dutch address search and geocoding from the official BAG register via PDOK: free-text query (street, number, postcode, town) returns up to 5 matching addresses with postcode, house number, municipality, province and WGS84 coordinates. Use it to validate or geocode a Dutch address for delivery, property or location tasks.

Fuel prices at every active filling station in Italy (Ministry of Enterprises, MIMIT): petrol (benzina), diesel (gasolio), LPG (GPL), methane and premium fuels, self-service and served, as communicated at 08:00 the day before, by province code (MI, RM, …) and optional town, with brand, address and coordinates. Sort by price for one fuel. MIMIT open data, IODL 2.0.

Any OECD dataset via the OECD SDMX API: give the dataflow (e.g. OECD.SDD.STES,DSD_STES@DF_CLI for leading indicators) and a series key with country codes (e.g. NLD........), and get the latest observations with dimension labels (max 500). Use it for international macro and social indicators across OECD countries. OECD data, CC BY 4.0 (third-party data excluded).

Latest hourly air quality measurements (NO2, PM10, PM2.5, ozone) from about 3,000 official monitoring stations in Europe (European Environment Agency, up-to-date unvalidated data, refreshed hourly): nearest stations to a location, or all stations of a country, with station type (traffic, background, industrial), area, value, unit and measurement hour. Use it for health, travel and environment questions. EEA, CC BY 4.0.

Weekly average consumer prices of petrol (Euro-Super 95), diesel, heating oil and LPG in every EU member state and the EU average, with and without taxes, from the European Commission's Weekly Oil Bulletin, up to 52 weeks back. Use it for fuel cost comparisons between countries and price trends. European Commission, reuse with acknowledgement (CC BY 4.0).

Recent earthquakes worldwide from the USGS real-time feeds: time, magnitude, place, depth, coordinates, tsunami flag and alert level. Filter by period (hour, day, week, month) and minimum magnitude class (significant, 4.5, 2.5, 1.0, all). Use it for hazard monitoring, travel or logistics checks and news context. Updated every few minutes.

Key facts about any thing, place, person or company from Wikidata, by name or Q-id: label, description, Wikidata id and the most useful properties (type, country, location, population, coordinates, inception, birth/death dates, occupation, website, headquarters, industry, revenue, employees, ticker). Use it for entity lookup, enrichment and disambiguation. CC0.

Airport lookup by IATA code (AMS), ICAO code (EHAM) or name/city: name, type, city, country, region, coordinates, elevation, scheduled service and both codes, for about 9,000 large, medium and IATA-coded airports worldwide. Use it for travel, logistics and aviation tasks. OurAirports data, public domain, refreshed nightly.

US weather forecast from the National Weather Service for a latitude/longitude inside the United States: the next 7 days in 12-hour periods with temperature, wind, precipitation chance and a short and detailed text forecast. Use it for travel, events, logistics or field work in the US. NOAA/NWS data, US public domain.

Current ECB key interest rates: deposit facility rate, main refinancing operations rate and marginal lending facility rate, each with the date it took effect. Use it for euro interest rate context in finance, lending or treasury tasks. Note: free of charge at ecb.europa.eu; you pay for access, not for the data.

Dutch vehicle registry lookup by licence plate (RDW open data): make, model, vehicle type, colour, first registration date, APK (MOT) expiry, fuel type, CO2 and power, insurance and open recall flags. Use it to verify a Dutch car, van or motorbike before a sale, rental, parking or logistics task. Plate without dashes, e.g. GT495X. No personal owner data.

Latest US river and stream readings from the USGS water data API (15-minute data): discharge (cubic feet per second), gage height (feet) or water temperature for a USGS monitoring site. Use it for flood watching, paddling and fishing conditions, and water-dependent operations. Site number e.g. 01646500 (Potomac River near Washington DC). Data are provisional.

Current local time, UTC offset and daylight-saving status for any IANA time zone (e.g. Europe/Amsterdam, America/New_York, Asia/Tokyo), plus the next DST transition within a year. Computed from the IANA time zone database. Use it for scheduling across time zones and for agents that need a trustworthy clock.

Sunrise, sunset, solar noon, day length and the sun's elevation at noon for any latitude, longitude and date, computed with the NOAA solar algorithm (accurate to about a minute; times in UTC; polar day and night handled). Use it for solar panel and lighting schedules, photography, outdoor work planning and daylight-dependent automations.

Latest observation from a NOAA National Data Buoy Center station (US and international buoys and coastal stations): wind direction and speed, gusts, wave height and period, air and water temperature and pressure. Use it for sailing, surfing, offshore work and marine forecasts. Station id e.g. 46026 (San Francisco), 41001 (Cape Hatteras).

Any time series from the ECB Data Portal by flow and series key (e.g. EXR/D.USD.EUR.SP00.A for USD/EUR, FM/B.U2.EUR.4F.KR.DFR.LEV for the deposit rate, ICP/M.U2.N.000000.4.ANR for euro area inflation), last N observations. Use it for euro area rates, money, banking and prices. Note: free of charge at ecb.europa.eu; you pay for access, not for the data.

Live fuel prices at every filling station in France (prix-carburants, updated about every 10 minutes): diesel (gazole), SP95, SP98, E10, E85 and LPG per station, by postcode or city, with address, coordinates, update time and shortages. Sort by price for one fuel. Use it for route planning and price comparison. French Ministry of Economy, Licence Ouverte 2.0.

World news events from the last 15 minutes, from the GDELT Project's global monitoring of news media: who did what to whom, where, with event type (CAMEO), tone, Goldstein impact score, number of mentions and a source article URL. Filter by country (FIPS code, e.g. NL, US, UK) or keyword in the actors. Use it for real-time situational awareness and risk monitoring.

Key annual financials of a US-listed company from its SEC XBRL filings (10-K), by ticker or CIK: revenue, operating income, net income, diluted EPS, total assets, liabilities, equity and cash, per fiscal year with the filing it comes from, up to 10 years. Use it for quick fundamentals and peer comparisons. SEC data, US public domain.

Official monthly inflation (HICP, annual rate of change, all items) for EU countries, the euro area and the EU from Eurostat. Give a country code (NL, DE, FR, EA20, EU27_2020) and the number of recent months. Use it for price indexation, wage or rent adjustment and economic context. Eurostat data, CC BY 4.0; values unchanged.

Weather forecast for any point on Earth for the next 48 hours, hour by hour: temperature, wind speed and direction, precipitation, cloud cover, humidity, pressure and a weather symbol. Model run by the Norwegian Meteorological Institute (MET Norway), updated several times a day. Use it for travel, logistics, events and outdoor work anywhere.

Dutch statutory interest calculator (wettelijke rente, art. 6:119 BW consumer; art. 6:119a BW commercial) on an unpaid amount between two dates, with the legally required yearly compounding and every rate change, period by period. Use it for invoices, debt collection and claims under Dutch law. From 2015-01-01; rates from the Staatsblad and ECB.