SiteCheck

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://api.sitecheck-api.workers.dev/api

• GET/btc/address—No price listedA Bitcoin mainnet address: confirmed and unconfirmed balance in BTC and USD, transaction count, funded and spent totals, and its last 10 transactions with the net change for the address. Mainnet bech32 and legacy addresses only. Source: mempool.space. Information only, not financial advice.
• GET/securities/id—No price listedA security by ISIN, CUSIP or ticker (with an optional exchange code): its OpenFIGI id, name, ticker, exchange, security type and market sector, and for an ISIN the issuer's LEI and legal name from GLEIF. ISIN and CUSIP check digits are verified before the call. Attribution: FIGI by OpenFIGI; LEI by GLEIF.
• POST/regex/generate—No price listedA regular expression from a description, with examples that must match and examples that must not. The pattern is returned only when every example passes when tested in the service (one retry with the failures). Patterns with nested quantifiers are refused to avoid catastrophic backtracking. Examples are up to 10 strings of 300 characters each.
• GET/text/transliterate—No price listedTransliterate text to Latin ASCII, or make a URL slug from it. Covers Cyrillic, Greek, Turkish, German, Nordic, Polish, Vietnamese and accented Latin letters. Characters with no table entry (Arabic, Hebrew, CJK ...) are kept and listed in unconverted, not guessed. Up to 2,000 characters. Pure code.
• GET/subdomains—No price listedSubdomains of a domain seen in certificate transparency logs: each name with the first and last certificate dates, the issuer of the newest certificate, and wildcard entries flagged. Deduplicated, newest first, up to 500. CertSpotter is read first, but its free index is partial, so those answers are marked truncated with the reason; crt.sh is the fallback and is complete. Only public certificates are listed.
• GET/crypto/orderbook—No price listedA 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 is a snapshot, not a quote: prices move between calls. Information only, not financial advice.
• GET/web/security-txt—No price listedFetches a site's security.txt from /.well-known/security.txt (fallback /security.txt) and parses the RFC 9116 fields: contacts, expiry (and whether it has expired), encryption, policy, acknowledgments, languages, canonical, hiring. Reports whether it is PGP-signed and lists RFC problems found. Public http(s) hosts only.
• GET/doi—No price listedA DOI's bibliographic record from Crossref (title, authors, journal, publisher, date, type, citation count, license), or the best matches for a citation-style search (max 10). An unknown DOI answers 404, not charged.
• GET/evm/transfers—No price listedERC-20 transfers into and out of an address in a window of recent blocks (default 2,000, max 10,000), from Transfer logs, newest first, max 100 rows with token symbols. token limits the search to one contract. A busy address can be truncated: narrow the window to see the rest.
• POST/json/repair—No price listedRepairs broken JSON: markdown fences, comments, trailing commas, single quotes, unquoted keys, Python literals (True, False, None) and truncated endings. Pure code first; the model is asked once only when code cannot repair it. Optional JSON Schema check covers type, required, properties, items, enum, minimum, maximum, minLength, maxLength and pattern. Input max 1 MB.
• GET/sec/filings—No price listedRecent SEC EDGAR filings of a company (10-K, 10-Q, 8-K and more), found by ticker, CIK or name. A name that matches several filers returns candidates with HTTP 400, not charged. Each filing gives the form, filing and report dates, description, index page and primary document. Source: SEC EDGAR, public domain.
• GET/domain/typosquat—No price listedGenerates lookalike domains of a brand (omission, transposition, repetition, bit-flip, homoglyph, vowel swap, hyphenation, TLD swap; technique list after dnstwist), checks up to 30 of them in DNS (A records), and reads MX records for up to 8 that resolve. Resolving in DNS is not proof of registration or abuse.
• POST/text/diff—No price listedDifferences between two texts: mode lines, words or chars; the added, removed and unchanged parts with counts, a similarity ratio (2 x unchanged / both texts' units), and a unified diff for lines. Body { a, b, mode }: lines and words up to 50 KB each, chars up to 20 KB each (capped for the Worker's CPU budget). Pure code using the diff package (BSD-3-Clause).
• GET/user-agent—No price listedParses a User-Agent string: browser and version, rendering engine, operating system and version, device type, vendor and model, CPU, and whether it is a known crawler (Googlebot, Bingbot, GPTBot, ClaudeBot, PerplexityBot, AhrefsBot and a few more) with its name. Optional Client Hints values (platform, mobile, model) are reported as given. Parsed with ua-parser-js 1.x (MIT). Pure code, no outside request.
• GET/hn—No price listedHacker 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 title, URL, HN link, points, comments, author and time. Comments give their text (400 characters, HTML stripped) and the story title. Up to 50 results. Public data, no key.
• GET/sitemap—No price listedAll URLs a website lists in its XML sitemaps (from robots.txt, /sitemap.xml or /sitemap_index.xml, following indexes), with lastmod, newest first. Filter by path prefix and changed-since date. For agents that need a site's page list before reading pages.
• GET/media/transcript—No price listedSpeech to text from a media link: TikTok, X, SoundCloud, Facebook, Dailymotion, podcasts, Drive or Dropbox links, direct audio or video files. Text, timestamped segments, language, duration; speaker labels on request. Price from maxMinutes (default 5, up to 120): direct file up to 25 MB $0.001 + $0.0006/min, other links $0.002 + $0.0009/min, speakers=1 $0.01/min. Longer media is refused unpaid. YouTube returns captions. No speech is a 404, not charged.
• GET/weather—No price listedWeather for a place or a coordinate: current conditions, the next 48 hours and 7 days (temperature, precipitation, wind, symbol). Forecast from MET Norway, cached until its own expiry time. Attribution: Data from MET Norway (CC BY 4.0).
• POST/markets/build-buy—No price listedBuild an unsigned Panta buy transaction (Solana v0, base64, plus the raw instructions) for your own wallet to sign and broadcast. SiteCheck never signs, holds keys or custodies funds. Then report the signature to POST /api/markets/report (free).
• GET/pubmed—No price listedPubMed articles matching words, optionally from a year: PMID, title, first five authors, journal, date, DOI and link. Two NCBI requests. Attribution: PubMed (NCBI). Information only, not medical advice.
• GET/solana/wallet—No price listedSolana wallet holdings: SOL and every SPL / Token-2022 balance with name, symbol, USD price and value (Jupiter), sorted by value, plus the total in USD. Dust and unpriced tokens hidden unless includeDust=1. Information only.

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