Vextorium

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.

Information about an autonomous system: holder, whether it announces routes, registry block, number of IPv4 and IPv6 prefixes announced, approximate IPv4 addresses and a sample of prefixes. RIPEstat data.

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

Convert integers of any size (signed) between bases 2 to 36: binary, octal, decimal, hex, base32, base36, with bit and byte length and two's complement. Accepts 0x/0b/0o prefixes.

Standard and reduced VAT rates of any EU member state, and an invoice breakdown (net, VAT, gross) from a net or VAT-inclusive amount, flagging rates that are not in force there.

Deep comparison of two JSON documents: added, removed and changed values with their exact path, optionally ignoring list order. Detect changes in API responses, configs or data snapshots.

Count the tokens of a text with OpenAI tokenizers (o200k for GPT-4o/4.1/5, cl100k for GPT-4/3.5) plus estimates for Claude, Llama and Gemini, with characters per token. Budget LLM calls and split contexts.

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.

Rust crate profile from crates.io: version, description, license, repository, docs, total and recent downloads, minimum Rust version, keywords and dates.

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.

Annual government deficit (-) or surplus (+) as % of GDP for any European country; without a country, a ranking. Official Eurostat data.

Total US public debt outstanding to the penny (held by the public and intragovernmental), with its change over 30 days and one year and the average daily increase. Official US Treasury Fiscal Data.

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.

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

US labor market: unemployment rate, nonfarm payrolls with monthly job change, and average hourly earnings with annual growth. US Bureau of Labor Statistics, public domain.

Search US listed companies registered with the SEC by name or ticker: ticker, official name, CIK and exchange (Nasdaq, NYSE...). Get the right ticker before asking for filings or fundamentals.

All links on a page classified as internal or external, with anchor text, nofollow/sponsored, new-tab flags and the most linked external domains. For SEO, crawling 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.

How many copies of an ERC-1155 token id a wallet holds (balanceOf), with the token URI. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.

ETH burned by the EIP-1559 base fee over the last N blocks versus estimated validator issuance: burned total, issuance, net supply change (deflationary or not) and its daily and yearly extrapolation.

Block header by number, hex or tag (latest, safe, finalized): hash, parent, time, producer, gas used and limit, base fee, transaction count and optionally the tx hashes. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.

Whether an address is a contract or a wallet: bytecode size and hash, EIP-7702 delegation and EIP-1167 minimal proxy detection. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.

Run a read-only eth_call with pre-encoded hex calldata and get the raw result split into 32-byte words, or the revert reason. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.

Confirmed and pending nonce of a wallet, next nonce to use and transactions waiting in the mempool. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.

Transaction receipt: success or failure, gas used, effective gas price, fee, contract created and every event log with address, topics and data. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.

Network status: chainId, block height and age, gas price, base fee, suggested priority fee, node client version and sync status. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.

Read a raw storage slot of a contract (decimal, hex or the standard EIP-1967 implementation/admin/beacon slots), as integer and as address, at any block. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.

totalSupply of an ERC-20 token or ERC-721 collection with name, symbol and decimals. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.

Moon phase on a date: name, illuminated percentage, lunar age and the next new and full moon dates. Local astronomical calculation.

Official public holidays of 150+ countries and their regions (Spanish autonomous communities, US states, German Länder...) for a year, whether a given date is a holiday, and the next holiday.