Vextorium

Generate a barcode as SVG (EAN-13, EAN-8, UPC-A, ISBN, ISSN, Code 128, Code 39, ITF, GS1-128...) for labels and products, computing the check digit when missing.

Validate EAN-8, EAN-13, UPC-A, GTIN-14, ISBN-10 and ISBN-13: check digit (and the expected one if wrong), code type, GS1 prefix and registering country, plus ISBN-10/13 conversion.

Resolve a Basename (name.base.eth on Base) to its address, or an address to its verified primary Basename (reverse record checked forward).

BIC/SWIFT code validation and parsing: bank, country, location and branch codes, test-code flag.

Bitcoin network now: block height and latest blocks, recommended fees in sat/vB to confirm in 1, 3, 6, 24 or 144 blocks, mempool size, difficulty, estimated hashrate and next difficulty adjustment (date and expected change), plus BTC price.

Status of a Bitcoin transaction by txid: confirmed or in mempool, confirmations, block, total fee and fee rate (sat/vB), size, RBF flag, inputs and outputs with amounts.

Block number closest to a date and time on EVM chains (ethereum, base, arbitrum, optimism, polygon, bsc, avax...), with the block's own timestamp. For historical state queries and event filters.

Live status of Bitcoin, Solana and 12 EVM chains (Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic, Unichain): latest block, seconds since last block, gas and whether each network is ok, slow or halted.

Business days in 150+ countries and their regions: count between two dates, or the date after adding N business days, skipping weekends and official holidays, listing the holidays in the range.

Cardano wallet by address (addr1...) or stake account (stake1...): ADA balance, delegated pool and DRep, available rewards, native tokens and USD value.

Latest press releases from central banks and financial regulators (Federal Reserve, ECB, Bank of England, SEC, CFTC, ESMA) in one feed by date, with title, link and summary; filter by source or keyword (rate, crypto, stablecoin...).

Reference data for a blockchain by its chainId: name, gas/native token, block explorers, number of public RPCs and website. Utility for multi-chain agents. Live from chainid.network (ethereum-lists, open data).

Clinical trials on ClinicalTrials.gov by disease, drug or sponsor: title, NCT id, status, phase, conditions, interventions, sponsor, dates, enrollment and countries; recruiting ones by default.

Convert coordinates between decimal degrees, degrees-minutes-seconds (40°25'00"N), UTM (zone, easting, northing) and geohash, in any direction, plus a map link.

Convert a color between HEX, RGB, HSL, HSV and CMYK and, given a background, compute the WCAG 2.x contrast ratio with AA/AAA pass flags; without background, suggests black or white text.

Wallet on Cosmos Hub (cosmos1...), Osmosis (osmo1...) or Celestia (celestia1...): token balances, staked amount per validator, pending rewards, unbonding and USD value. Also accepts a validator (valoper) address and shows its account.

Details of a vulnerability by id (CVE-2021-44228, GHSA-..., PYSEC-...): summary, description, severity and CVSS vector, affected packages, fixed versions and references. OSV.dev data.

Validate a 5-field cron expression (ranges, steps, names, @daily aliases), explain it in plain English and list its next run times in any time zone, DST-aware.

Convert an amount between cryptocurrencies and currencies (0.5 BTC to ETH, 100 USDC to EUR, 1000 EUR to SOL) with live DefiLlama prices and ECB rates.

Translates a 4-byte function selector (e.g. 0xa9059cbb) or a 32-byte event topic into its human-readable signature (e.g. transfer(address,uint256)). Essential for an agent reading or verifying transactions. Live from 4byte.directory.

DNS records of a domain with TTL: A, AAAA, CNAME, MX, NS, TXT, SOA, CAA, SRV, HTTPS. Choose the types or get the common ones at once.

Detect the language of a text without AI (55 languages, statistical langdetect model) with probability and alternatives. Fast and cheap for routing messages or choosing a translation.

US drug facts from the official label (openFDA): brands, active ingredient, uses, dosage, warnings, contraindications, interactions, pregnancy and manufacturer. Information, not medical advice.

Docker Hub image profile (official or user): description, stars, total pulls, last update and recent tags with size and architectures.

Recent earthquakes worldwide from the USGS: magnitude, place, depth, time, PAGER damage alert, tsunami flag and felt reports; filter by minimum magnitude, period (hour to month) and distance to coordinates.

Upcoming macro events with UTC date and time: US BLS releases (jobs report, CPI, PPI, JOLTS, wages...), Federal Reserve FOMC rate decisions and ECB monetary policy decisions. Filter by days ahead, text or high-impact only.

Official European Central Bank euro reference exchange rates (about 30 currencies) and currency conversion between any two of them, with reference date.

Analyze raw email headers: sender, recipient, subject, server hops (Received) with delays, SPF/DKIM/DMARC results, Return-Path and Reply-To mismatches and spoofing signals, with a verdict. Investigate phishing or delivery issues. Nothing is stored.

Detect which email service a domain uses (Google Workspace, Microsoft 365, Zoho, Proton, OVH, IONOS...) from its MX and SPF records, plus corporate spam filters and other senders. For B2B sales and audits.

Expiry of a .eth (ENS) or .base.eth (Basename) name: expiration date, days left, grace period end, registrant and whether it is free to register.