7,300 resources accept payment on this network. eip155:137
US dollar reference rates from the Federal Reserve Bank of New York: effective fed funds rate (EFFR) with the Fed's target range, SOFR with 30/90/180-day averages, OBFR,…
Resolve a .ton domain (TON DNS) to its wallet address, or find the .ton domain of a TON address.
Split long text into overlapping chunks for RAG and embeddings, by characters, words or estimated tokens, keeping sentences or paragraphs whole, with each chunk's positi…
Balance of a Litecoin, Dogecoin or Dash address (detected from the prefix if not given): confirmed and pending balance, total received and sent, transaction count and US…
Decode EVM calldata (transaction input) with the function signature or, if omitted, by looking up the selector on 4byte; or decode return data with its output types (e.g…
Country profile: name, ISO codes, capital and its coordinates, region, income level, phone prefix, time zones and latest population and GDP per capita. World Bank and li…
Encode a contract function call (calldata) from its signature and arguments, e.g. transfer(address,uint256) with [to, amount]: selector and hex data ready to sign or sim…
Classify up to 50 EVM addresses at once: regular wallet (EOA), EIP-7702 delegated wallet or contract, with code size. Filter airdrop lists, spot contracts or bots. 12 ch…
Great-circle distance between two airports by IATA or ICAO code in km, miles and nautical miles, bearing, approximate flight time and estimated economy-class CO2 per pas…
Find airports by IATA/ICAO code, name or city, or the nearest to coordinates: name, codes, city, country, coordinates, elevation and scheduled service. OurAirports open…
Algorand account: ALGO balance and locked minimum, ASA assets (USDC...) with amounts, consensus participation, opted-in apps and USD value.
Convert APR to APY or APY to APR for any compounding frequency (continuous, daily, hourly, per block...) and optionally project the final value and gain of a deposit ove…
Aptos wallet: APT balance and other fungible assets (USDC, USDT...) with amount and USD value, number of sent transactions and whether the account exists.
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…
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…
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 q…
Live status of Bitcoin, Solana and 12 EVM chains (Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic, Unichain): latest bloc…
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 th…
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 summ…
