QR code as a crisp deterministic SVG from any text or URL up to 1000 characters, with selectable error-correction level (L/M/Q/H). Vector output scales to any size with no rasterization step.

HISTOR pre-flight for an MCP server: its signed record in the HISTOR transparency log — when the tool set was first seen, whether it changed, what the pattern scan found. Never contacts the server asked about.

National Bank of Ukraine key policy rate (облікова ставка) on a date, with the overnight deposit and overnight loan rates and every policy-rate change in the previous ~13 months. Call it for Ukrainian loan or deposit maths, late-payment penalties tied to the NBU rate, macro briefs, or to see when the rate last moved. Param: date (YYYY-MM-DD, default today in Kyiv).

Working days / next working day in a date range: weekends + gazetted public holidays

npm package safety gate: vulnerabilities, malware advisories, typosquatting, install-script risk.

Official National Bank of Ukraine (NBU) exchange rates of the hryvnia (UAH) on a date: 40+ currencies, gold, silver and SDR, with English names. Call it when you need the legally official UAH rate for Ukrainian accounting, tax, invoices or customs, or to convert to/from UAH on a given date. Params: date (YYYY-MM-DD, default today in Kyiv), currency (ISO code, optional; omit for all).

[Payment rails: fee + speed comparison] Cheapest and fastest payment rail right now for a USD amount (?amount=100): Base USDC (live gas x ETH/USD, ~2s), XRPL RLUSD/XRP (live fee x XRP/USD, ~3-5s), Tempo and Circle Arc (live gas, USD fees, ~1s), card (static 2.9% + $0.30, days). Fee USD/%, settlement time, sources, agent protocols per rail, recommended pick. Dead sources marked unavailable. 60s cache. $0.002 USDC. Signal only.

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.

Scientific paper lookup by DOI, arXiv id or PMID: full abstract, Semantic Scholar TLDR, ready-to-paste BibTeX and APA citations, citation counts, retraction flag, paper type, open-access PDF link. Merged from OpenAlex, Crossref, arXiv, PubMed and Semantic Scholar. Use to cite a known paper or expand a search hit.

Live quote for any US stock or ETF: last price, previous close, % change, day high/low, volume and exchange timestamp. For an agent that needs one current price before deciding or reporting. Params: ?symbol=NVDA. Unknown symbol or source outage returns an error and is not charged. JSON.

Blockchain Data gas: Current gas price, base fee and priority-fee percentiles in gwei for one or all 7 EVM chains (eth_feeHistory, 5 blocks), or Bitcoin sat/vB fee estimates.

Crypto Fear & Greed index: today + yesterday + week ago + 10-day history (0=extreme fear, 100=extreme greed) — market sentiment in one call

Norwegian address search and geocoding from the Norwegian Mapping Authority (Kartverket). Free-text lookup of any street address in Norway returns the official address, postcode, postal town, municipality, cadastral numbers (gnr/bnr) and WGS84 latitude and longitude. Use it to validate, normalise or geocode Norwegian addresses for deliveries, forms, maps and KYC. Compact JSON, up to 5 matches.

Real-time public transport departures for any stop or station in Norway from Entur, the national travel data hub. Give a stop name and get the next departures with line number, transport mode, destination, scheduled and expected time, delay in minutes, platform and whether real-time data is available. Covers trains, buses, trams, metro and ferries nationwide. Use it for travel planning and live departure boards. Compact JSON.

Official daily exchange rates against the Norwegian krone (NOK) from Norges Bank, the central bank of Norway. Get the latest published rate for USD, EUR, GBP, SEK, DKK or any currency Norges Bank quotes, normalised to NOK per 1 unit, with the quote date. Use it for currency conversion, invoicing, accounting and price comparisons involving Norway. Compact JSON, authoritative source.

Is this address sanctioned? Screens a crypto address against the US Treasury OFAC SDN list's published digital currency addresses (ETH, USDC, USDT, XBT, SOL, TRX and others): the listed entity, programs and listing date on a match, or not found as of the list date. Adds whether it is a wallet (EOA) or contract on Base, Ethereum, Arbitrum, Optimism or Polygon, or a wallet or program-derived address on Solana. Not legal advice.

Public holidays and business-day check for Norway and 200+ other countries, from the open-source Nager.Date holiday database. Without dato: every public and bank holiday of a year with local and English name and whether it is nationwide or regional. With dato: whether that date is a holiday or weekend, plus the next business day. Use it for deadline and SLA maths, delivery and payroll scheduling, or opening-hours logic. Compact JSON.

Ukraine consumer price inflation for a month: headline and core CPI as % month-on-month, year-on-year, since December and period average, from the national total (State Statistics Service data republished by the NBU). Call it to index UAH amounts, write a macro brief, or compare Ukrainian inflation. Param: month (YYYY-MM; omit for the latest published month).

Results of Ukrainian domestic government bond (OVDP) primary auctions held by the Ministry of Finance, as published by the NBU: ISIN, maturity, cut-off and average yield, bid-to-cover, volumes and funds raised. Call it for UAH yield-curve points, sovereign debt monitoring or fixed-income briefs. Param: date (YYYY-MM-DD auction date; omit for the latest auction).

Deployer (creator-wallet) reputation from our own 35k-verdict ledger. Pass a token and we resolve its deployer, or pass a wallet directly. Returns how many of that wallet's prior tokens we proved were honeypots or scams (realised harm only; tokens that merely died with no liquidity are reported as context, never counted as rugs), the malice rate, a rug-risk penalty and reason codes. A prior to look harder or price wider, never proof this token is a honeypot.