SiteCheck
api.sitecheck-api.workers.dev · 225 paid endpoints · listed 2026-10-27
Domain lookup over RDAP (the successor of WHOIS) and DNS: registered or available, registrar, creation, update and expiry dates, days until expiry, age, status codes, DNSSEC, name servers, plus whether it resolves (IPv4/IPv6) and its mail servers. Any TLD with an RDAP service; others are inferred from DNS.
livelast check 5 days ago
100%valid x402 answers, 72 h
sharedUSDC received on Base, 7 days
35distinct payers, 7 days
68.0score (0-100)
Paid endpoints
| Method | Endpoint | Price | Networks |
|---|---|---|---|
| GET | api.sitecheck-api.workers.dev/api/address/parse Splits a free-text postal address into house number, street, unit, postcode, city, district, region and country, with a normalised one-line form. The postcode i | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/ai-crawlers For eleven AI crawlers (GPTBot, ClaudeBot, PerplexityBot, Google-Extended and others): allowed or blocked for the page's path under robots.txt, plus the noai an | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/airports Airport lookup in a bundled OurAirports extract (public domain, dated in the answer): by IATA or ICAO code, by name or city words, or the nearest airports withi | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/apps/search Searches the App Store (iTunes Search API) by keyword, or looks up one app by its numeric id: name, developer, bundle id, price, rating and rating count, genres | $0.002 | eip155:5042, Base, Solana |
| GET | api.sitecheck-api.workers.dev/api/arxiv arXiv papers matching search terms, optionally in one category (cs.AI, math.CO), newest first, max 25: id, title, authors, dates, a 500-character summary, categ | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/books Book lookup by ISBN (checked before the call) or by title and/or author: title, subtitle, authors, publishers, first publish year, median page count, ISBN-10 an | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/btc/address A Bitcoin mainnet address: confirmed and unconfirmed balance in BTC and USD, transaction count, funded and spent totals, and its last 10 transactions with the n | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/btc/fees Recommended Bitcoin fees in sat/vB (fastest, 30 minutes, 1 hour, economy, minimum), the mempool's size and count, and what a typical 140 vB transaction costs in | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/btc/tx A Bitcoin transaction by txid: confirmed block and time (or unconfirmed), fee in sats and sat/vB, size and virtual size, input and output totals, and whether it | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/business-days Working days for a country. mode=between counts the working days after `from` up to and including `to` (up to 5 years) and lists the public holidays skipped; mo | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/certs Current TLS certificates for a domain from Certificate Transparency logs (via CertSpotter): issuer, validity dates and days left, DNS names (up to 100 per certi | $0.002 | eip155:5042, Base, Solana |
| POST | api.sitecheck-api.workers.dev/api/classify Labels up to 20 texts with 2 to 20 labels you choose, with a confidence from 0 to 1 and a one-line reason per text. One label per text, or several with multi tr | $0.002 | eip155:5042, Base, Solana |
| GET | api.sitecheck-api.workers.dev/api/clinical-trials Clinical trials from ClinicalTrials.gov matching words, optionally by status and phase: NCT id, title, status, phases, conditions, sponsor, start and completion | $0.002 | eip155:5042, Base, Solana, XRPL |
| POST | api.sitecheck-api.workers.dev/api/code/explain Explains a code snippet (max 20,000 characters): detected language, a summary, a step-by-step explanation, the functions and classes it defines, and possible bu | $0.002 | eip155:5042, Base, Solana |
| GET | api.sitecheck-api.workers.dev/api/company/ticker Maps a US-listed stock ticker, SEC CIK number or company name fragment to the other two, with the exchange: an exact ticker or CIK, or up to 10 names matching t | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/congress US federal bills from Congress.gov (Library of Congress). Keyword search (q) runs over the 250 most recently updated bills of a Congress, since the API has no f | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/cron Explains a cron expression in plain English and lists its next runs in UTC and in a time zone. Five fields (minute hour day month weekday), or six with seconds | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/crypto/candles OHLCV candles for a Coinbase trading pair (BTC-USD) at 1m, 5m, 15m, 1h, 6h or 1d granularity, up to 300, newest first, from Coinbase Exchange public market data | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/crypto/convert Convert an amount between a crypto and a fiat currency, or between two crypto assets, at the current spot price: the rate, the converted amount, the pair path u | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/crypto/fear-greed The Crypto Fear & Greed Index today and for the previous days (up to 30), with its classification (extreme fear to extreme greed). Attribution: alternative.me. | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/crypto/funding Perpetual futures funding for one coin across Hyperliquid, OKX, Deribit and dYdX v4: the current funding rate, the interval (1 or 8 hours), the annualised rate, | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/crypto/indicators Technical indicators for one crypto pair and interval, computed from the last 60 to 300 candles: SMA and EMA for the periods you give (default SMA 20, 50, 200; | $0.002 | eip155:5042, Base, Solana |
| GET | api.sitecheck-api.workers.dev/api/crypto/news Latest crypto headlines from the RSS feeds of CoinDesk, Cointelegraph, Decrypt, The Block and Bitcoin Magazine, newest first: title, link, publisher, publish ti | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/crypto/orderbook A level-2 order book snapshot for a Coinbase pair: best bid and ask, mid price, spread in price and basis points, and the top bids and asks up to depth 50. It i | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/crypto/price USD spot prices for up to 20 symbols (BTC, ETH, SOL...) from Coinbase, with the source of each price. A Solana mint address also works and is priced by Jupiter. | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/date/calc Date and time calculations in pure code. op=diff: calendar years, months and days between two dates, and the total days. op=add or subtract: move a date by year | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/defi/chains Total value locked by chain from DefiLlama, largest first, with each chain's token, chain id and stablecoin market cap. With chain, that chain's own row and its | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/defi/dex-volume A DEX's trading volume for 24 hours, 7 days and 30 days, with the change over the last day and the chains it trades on. Attribution: Data: DefiLlama. Informatio | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/defi/fees A DeFi protocol's fees and revenue for 24 hours, 7 days and 30 days, with the change over the last day against the day before, and the chains it runs on. Attrib | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/defi/stablecoins Stablecoins tracked by DefiLlama: circulating supply, peg type and mechanism, price, and the chains each one runs on. With symbol, that coin; without it the 50 | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/defi/tvl Total value locked in DeFi from DefiLlama. For a protocol (its slug, e.g. aave-v3) the current TVL; for a chain (Base, Ethereum...) its TVL with 1-day and 7-day | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/defi/yields DeFi yield pools from DefiLlama with at least $1M TVL, sorted by APY and filtered by chain, project or symbol (max 50). APY is DefiLlama's estimate, split into | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/dex/pools Fetches decentralized exchange (DEX) liquidity pools for a token or pair across chains via DexScreener (with GeckoTerminal fallback). Returns chain, DEX name, p | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/disasters Current disaster alerts from GDACS (UN OCHA and EC JRC): type (earthquake, tropical cyclone, flood, volcano, drought, wildfire), name, country, alert level, sta | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/distance The great-circle distance between two points in km and miles, the initial bearing and the midpoint. Each point is a lat,lon pair or a place name (geocoded with | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/dns Mail and DNS hygiene of a domain over DNS over HTTPS: A, AAAA, MX, NS, TXT and CAA records; SPF parsed (mechanisms, the all qualifier, a lookup estimate, a warn | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/doi A DOI's bibliographic record from Crossref (title, authors, journal, publisher, date, type, citation count, license), or the best matches for a citation-style s | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/domain Domain lookup over RDAP (the successor of WHOIS) and DNS: registered or available, registrar, creation, update and expiry dates, days until expiry, age, status | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/domain/typosquat Generates lookalike domains of a brand (omission, transposition, repetition, bit-flip, homoglyph, vowel swap, hyphenation, TLD swap; technique list after dnstwi | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/earthquakes Recent earthquakes from USGS, newest first: magnitude, place, time, depth, coordinates, tsunami flag and alert level. Filter by minimum magnitude, days back (ma | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/econ/indicator Macro indicators for any country from the World Bank (CC BY 4.0): GDP, GDP growth, GDP per capita, inflation (CPI), unemployment, population, current account, g | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/email-check E-mail pre-check without SMTP: syntax, whether the domain can receive mail (MX or implicit MX, null MX, non-existent domain), disposable domain (9,000+ domain C | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| POST | api.sitecheck-api.workers.dev/api/email/reply Drafts a reply (subject and body) to a received e-mail (max 10,000 characters) for an intent: accept, decline, ask-information, follow-up or custom with your ow | $0.002 | eip155:5042, Base, Solana |
| POST | api.sitecheck-api.workers.dev/api/embed Multilingual text embeddings (BGE-M3, 1024 dimensions) for up to 100 texts per call. For search, RAG and clustering. | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| POST | api.sitecheck-api.workers.dev/api/encode Encode or decode text as base64, base64url, hex, URL (percent) encoding, HTML entities, punycode (domain names) or quoted-printable. Body { input, scheme, direc | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/ens ENS on Ethereum mainnet. A name (vitalik.eth) resolves to its address, and an address resolves to its primary name, accepted only when that name resolves back t | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/eori Checks up to 10 UK EORI numbers (GB or XI followed by 12 or 15 digits) with HMRC's public check: valid or not, with the processing date. HMRC does not publish t | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/eu-tenders Active EU public tenders from TED matching words, optionally for one buyer country: notice number, title, buyer, country, publication date, deadline, CPV codes | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/evm/address Native balance, nonce and account type of an EVM address on Base (default), Ethereum, Arbitrum, Optimism or Polygon: a wallet, a contract, or an EIP-7702 delega | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/evm/allowance ERC-20 allowance an owner has granted a spender for one token: raw and human amount, with the token's symbol and decimals. unlimited is true when the allowance | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/evm/balance ERC-20 balance of an address for one token contract on a chain: token name, symbol, decimals, raw and human amount, and a USD value when Coinbase has a spot pri | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/evm/block An EVM block by number, or the latest one: hash, time, transaction count, gas used and limit, and base fee in gwei. Read over public RPC. | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/evm/call Read-only contract call (eth_call): decodes the return value of a function you name, e.g. balanceOf(address) returns (uint256). Nothing is signed or sent. A fun | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/evm/contract Whether a contract's source is verified on Sourcify (exact or partial match), with its name, compiler version, license, and the functions and events from its AB | $0.002 | eip155:5042, Base, Solana, XRPL |
| GET | api.sitecheck-api.workers.dev/api/evm/decode Function signatures for a 4-byte selector, and for calldata the decoded arguments. Signatures come from the openchain.xyz database, with 4byte.directory as fall | $0.002 | eip155:5042, Base, Solana |
| GET | api.sitecheck-api.workers.dev/api/evm/nft ERC-721 facts for one token: owner, collection name and symbol, tokenURI, and its metadata (name, description, image) when the URI is http(s) or ipfs. The metad | $0.002 | eip155:5042, Base, Solana |
| GET | api.sitecheck-api.workers.dev/api/evm/tx Status, block, time, sender, recipient, value, gas used and fee (native and USD) of an EVM transaction, plus the ERC-20 Transfer events inside it (token, symbol | $0.002 | eip155:5042, Base, Solana |
| GET | api.sitecheck-api.workers.dev/api/exif Camera make and model, lens, date taken, exposure (ISO, shutter, aperture, focal length), orientation, image size, software, and GPS latitude, longitude and alt | $0.002 | eip155:5042, Base, Solana |
| GET | api.sitecheck-api.workers.dev/api/fda/adverse-events The most reported adverse reactions to a drug in FDA's FAERS database: counts, total reports and the share that were serious. Reports are voluntary and show ass | $0.002 | eip155:5042, Base, Solana |
| GET | api.sitecheck-api.workers.dev/api/fda/label The latest US drug label (FDA SPL) for a brand or generic name: brand, generic name, manufacturer, indications, dosage, warnings and contraindications (each cut | $0.002 | eip155:5042, Base, Solana |
| GET | api.sitecheck-api.workers.dev/api/feed Items of an RSS, Atom or RDF feed, or of the feed a web page advertises: title, link, published date, author and a 300-character summary, newest first (max 50). | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/finance/loan Loan and investment calculator in exact cents, no outside source. mode=annuity: monthly payment, total interest and the full amortisation schedule (up to 600 mo | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/food Packaged food by barcode (EAN-8, UPC-A, EAN-13 or GTIN-14) or by name: product name, brand, quantity, Nutri-Score, NOVA group, nutrients per 100 g (energy, fat, | $0.002 | eip155:5042, Base, Solana |
| GET | api.sitecheck-api.workers.dev/api/fx Currency exchange rates from the European Central Bank (about 30 currencies, back to 1999): latest or a given date, amount conversion, or a daily time series be | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/gas Gas prices on Base (default), Ethereum, Arbitrum, Optimism, Polygon or Solana, or chain=all for every chain at once: the base fee and slow, normal and fast prio | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/geocode Place names to coordinates and back: up to 5 matches for a name, or the place at a coordinate. Each match has a display name, latitude and longitude, country co | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/github/issues Issues or pull requests of a GitHub repository, searched by words and state (open, closed or all), newest updated first: number, title, state, labels, author, c | $0.002 | eip155:5042, Base, Solana |
| GET | api.sitecheck-api.workers.dev/api/github/releases The latest releases of a GitHub repository: tag, name, date, pre-release flag, the first 1,500 characters of the notes, and the number of assets. Needs the GITH | $0.002 | eip155:5042, Base, Solana |
| GET | api.sitecheck-api.workers.dev/api/github/repo A public GitHub repository: stars, forks, watchers, open issues and pull requests, license, default branch, created and pushed dates, topics, languages with sha | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/github/search GitHub search with its own query syntax (e.g. 'sqlite language:rust stars:>100'). Repositories: name, owner, stars, forks, language, topics, licence, pushed dat | $0.002 | eip155:5042, Base, Solana |
| GET | api.sitecheck-api.workers.dev/api/github/user A GitHub user's public profile (name, company, location, blog, bio, followers, public repos, creation date) and their five most-starred repositories that are no | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/grants US federal grant opportunities from Grants.gov matching keywords: number, title, agency, open and close dates (YYYY-MM-DD), status and link, newest opening date | $0.002 | eip155:5042, Base, Solana |
| POST | api.sitecheck-api.workers.dev/api/hash Hashes of a text or base64 input (up to 1 MB): MD5, SHA-1, SHA-256, SHA-384, SHA-512 and CRC-32, and HMAC-SHA-256 or HMAC-SHA-512 when a key is given. Hex and b | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/headers Security headers of a URL's final response: Strict-Transport-Security, Content-Security-Policy, X-Frame-Options (or CSP frame-ancestors), X-Content-Type-Options | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/hn Hacker News stories or comments from the Algolia search API: keyword search (q) or the current front page (mode=front), optionally since a date. Stories give ti | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/hn/search Full-text search of Hacker News stories or comments through the Algolia HN API: title, URL, author, points, comment count, time and HN link; comments include th | $0.002 | eip155:5042, Base, Solana |
| GET | api.sitecheck-api.workers.dev/api/holidays Public holidays of a country (ISO 2 code) for a year (default: this year): date, local and English names, and whether the holiday is nationwide or regional with | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/iban IBAN validation with no network call: ISO 13616 length and structure for every country in the SWIFT IBAN registry, the mod-97 checksum, national check digits wh | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/ip Who owns an IP address: network name, CIDR, owner, abuse contact (RDAP), ASN and holder (RIPEstat), and reverse DNS. Private, reserved and documentation address | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| POST | api.sitecheck-api.workers.dev/api/json-validate Validates JSON data against a JSON Schema (draft 2020-12): valid true or false, and up to 50 errors with the instance path, the keyword and the message. Schema | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| POST | api.sitecheck-api.workers.dev/api/json/repair Repairs broken JSON: markdown fences, comments, trailing commas, single quotes, unquoted keys, Python literals (True, False, None) and truncated endings. Pure c | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/jwt/decode Decodes a JWT (up to 16 KB): header, payload, registered claims as ISO dates, expired and not-yet-valid flags, algorithm and signature length. With jwksUrl (pub | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/lang The language of a text with franc-min: ISO 639-3 and ISO 639-1 codes, the English name, confidence from 0 to 1, the script (Latin, Cyrillic, Arabic...) and the | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/llms-txt Whether a site publishes /llms.txt and /llms-full.txt: the parsed llms.txt (title, summary, sections with their links) and the size of llms-full.txt. Reads the | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/logo A site's brand assets: its icons (favicon, apple-touch-icon and web app manifest icons, largest first), the og:image, theme colour and site name, read from the | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/macro Official rate and macro series in one call, by name: fed_funds, us_cpi, us_core_cpi, us_unemployment, us_10y, us_2y, us_mortgage_30y, us_gdp, wti_oil, brent_oil | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| POST | api.sitecheck-api.workers.dev/api/markdown Markdown to HTML with GitHub-flavoured tables and strikethrough, heading ids, the list of headings and links, and a word count. Raw HTML in the input is escaped | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/markets Search Panta prediction markets (USDC on Solana) by keywords, phase or category. Compact rows: question, YES/NO implied probability from live prices, volume, cl | $0.002 | Solana |
| GET | api.sitecheck-api.workers.dev/api/meta SEO and sharing metadata of one web page, read from its HTML without JavaScript: final URL and status, title and description with their lengths, canonical, robo | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| POST | api.sitecheck-api.workers.dev/api/moderate Safety check of a text or a chat turn with Llama Guard 3: safe or unsafe, and the violated categories (S1 to S14, named in plain words). Send text, or messages | $0.002 | eip155:5042, Base, Solana |
| GET | api.sitecheck-api.workers.dev/api/npi US healthcare providers from the NPPES NPI Registry: look up one by its 10-digit NPI (check digit verified) or search by name with an optional state. Each provi | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/package Facts about a package on npm, PyPI or crates.io: latest version and date, license, description, repository, maintainers (npm), weekly downloads (npm), a depreca | $0.002 | eip155:5042, Base, Solana |
| GET | api.sitecheck-api.workers.dev/api/package/search Searches package names and descriptions on npm, crates.io, Packagist, RubyGems and NuGet, returning name, version, description, downloads where the registry giv | $0.002 | eip155:5042, Base, Solana |
| GET | api.sitecheck-api.workers.dev/api/perps/account A Hyperliquid account by address: account value, margin used and withdrawable amount in USD, and each open position with side, size, entry and mark price, unrea | $0.002 | eip155:5042, Base, Solana |
| GET | api.sitecheck-api.workers.dev/api/perps/markets Hyperliquid perpetual futures: mark and oracle price, hourly and annualised funding, open interest in coins and USD, 24 h volume and maximum leverage, sorted by | $0.002 | eip155:5042, Base, Solana |
| GET | api.sitecheck-api.workers.dev/api/phone Checks and formats a phone number with libphonenumber: valid and possible flags, E.164, international and national formats, country, calling code and line type | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/places Points of interest near a point (lat and lon, or a place name geocoded through OpenStreetMap) within up to 5 km: pharmacies, restaurants, cafes, hospitals, ATMs | $0.002 | eip155:5042, Base, Solana |
| GET | api.sitecheck-api.workers.dev/api/postcode Place names and coordinates for a postcode. GB adds district, ward and constituency (postcodes.io); other countries use Zippopotam.us for ZIP and postal codes. | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/prediction/polymarket Active Polymarket prediction markets matching search words, or one market by slug: the question, each outcome with its price as an implied probability, volume, | $0.002 | Optimism, Polygon, eip155:143, Arbitrum, eip155:42220, eip155:480, eip155:5042, Base, Solana, stellar:pubnet, XRPL |
| GET | api.sitecheck-api.workers.dev/api/producthunt Product Hunt launches: today's top launches, the newest in one topic (for example artificial-intelligence), or a text search over the newest launches. Each has | $0.002 | eip155:5042, Base, Solana, XRPL |
Latest checks
| When | Endpoint | HTTP | ms | Result |
|---|---|---|---|---|
| 5 days ago | api.sitecheck-api.workers.dev/api/address/parse | 402 | 984 | valid x402 v2 terms |
Income on Base (7 days)
This provider's payout address is shared by several providers, so its income is not shown as its own.
Is this your API?
Add the live badge to your docs: 
Claim it for free with
<a href="https://logicnodes.io/observatory/p/api.sitecheck-api.workers.dev"><img src="https://logicnodes.io/observatory/badge/api.sitecheck-api.workers.dev.svg" alt="x402 status"></a>
Claim it for free with
x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/api.sitecheck-api.workers.dev