225 pay-per-call agent tools: Polymarket, chain reads, DeFi, web, SEC, KYB, geo, dev, AI. x402
Connect Remote server
claude mcp add --transport http sitecheck https://api.sitecheck-api.workers.dev/mcp?ref=registry{
"mcpServers": {
"sitecheck": {
"url": "https://api.sitecheck-api.workers.dev/mcp?ref=registry"
}
}
}{
"servers": {
"sitecheck": {
"type": "http",
"url": "https://api.sitecheck-api.workers.dev/mcp?ref=registry"
}
}
}Settings > Connectors > Add custom connector
URL: https://api.sitecheck-api.workers.dev/mcp?ref=registryTools 80 found in our last check
imageGenerate an image from a text prompt (FLUX.1 schnell). Returns a base64 JPEG. Fast, 1024x1024. Price: $0.005 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.
transcribeSpeech-to-text with Whisper large-v3-turbo: send an https audio URL (or base64) up to 10 minutes and 25 MB, get the transcript, language and timestamped segments. Usually takes about 17 s, up to 31 s on slower calls; allow a 60 s timeout. Price: $0.01 in USDC per successful call…
ttsText-to-speech as base64 audio. Default: MeloTTS WAV, up to 2,000 chars, in English, Spanish, French, Chinese, Japanese or Korean, $0.002. quality "high": Deepgram Aura-2 natural English voices as MP3, up to 500 chars, $0.02. Price: $0.002 in USDC per successful call, paid with…
embedMultilingual text embeddings (BGE-M3, 1024 dimensions) for up to 100 texts per call. For search, RAG and clustering. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.
chatLLM chat completion with Llama 3.3 70B (fast): send messages or a prompt, up to 1,024 output tokens. Price: $0.004 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.
auditWebsite audit in one call: WCAG 2.2 accessibility issues (European Accessibility Act) with fixes and a score, SEO basics, security headers and tech stack. Price: $0.02 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.
contactsCompany contact enrichment from a domain: emails (same-domain flagged), phones, social profiles, description and tech stack, read from the home, contact, about and legal pages. Price: $0.01 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not c…
hiringSearch the current Hacker News 'Who is hiring?' thread: companies hiring, filtered by keywords and remote, with contact emails and links. Price: $0.01 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.
vatEU VAT number check: format and checksum are tested locally first (a malformed number is rejected with HTTP 400 and no charge), then the official VIES service answers whether it is valid, with the registered name and address where the member state discloses them. All 27 EU state…
ibanIBAN 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 where a public algorithm exists (FR, ES, IT, BE, NL, NO, FI, PL, PT and the Balkan countries), and the split into bank co…
leiLegal entity lookup in GLEIF by 20-character LEI or company name (best match plus up to 5 alternatives): legal name, status, jurisdiction, addresses, registration status and renewal date, direct and ultimate parent (or the reporting-exception reason), child counts with the first…
recallsUS product recalls in one schema from openFDA enforcement reports (food, drug, device) and CPSC: date, product, firm, reason, FDA Class I/II/III mapped to high/medium/low (CPSC severity is derived from the hazard text), distribution and states, and the official link. Filter by k…
violationsUS workplace and environmental enforcement cases by company, state and date: OSHA inspections with penalties (US Department of Labor API) and EPA enforcement cases (EPA ECHO), each with the official record link. Filters: company, state, since, minPenalty, source. Public records…
uk_insolvencyUK company insolvency notices (administrations, liquidations, winding-up petitions) from The Gazette, via our nightly cache of the last 8 days. Filter by company name or number, postcode prefix, notice type and date. Returns company, number, notice type, date, nature of business…
readRead one web page as clean Markdown (or plain text) for an LLM: the main content without menus, cookie banners and footers, plus title, description, author, published date, language and canonical URL; links on request. robots.txt is respected (a disallowed page is refused and no…
email_checkE-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 CC0 list), role account (info@, sales@...), free provider and a typo suggestion (gmial.com -> gmail.com). Verdict invali…
domainDomain 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; o…
solana_tokenSolana token check for trading agents: price, market cap, FDV, liquidity, holders, 24h volume and trades, price change, organic-trading score, verification, top-holder and developer share (Jupiter), top pools (GeckoTerminal), plus on-chain mint authority, freeze authority, suppl…
solana_trendingTrending, newest, top-traded or top-organic Solana tokens (Jupiter) filtered by liquidity and 24h volume: price, market cap, liquidity, holders, volume, trades, price change, organic score, mint and freeze authority, top-holder share, age and red flags for each. Information only…
techWebsite technology detection: CMS, e-commerce platform, analytics, tag managers, CDN, hosting, chat, payments, A/B testing, consent tools and the e-mail provider, each with version, confidence 0-100 and evidence, from 231 own fingerprints over the home page, headers, cookies and…
pdfPDF to text: send an https link or base64 (up to 15 MB) and get the text page by page plus title, author, page count and dates. Text PDFs only: a scanned PDF without a text layer answers 422 and is not charged. Takes about 17 s; allow a 30 s timeout. Price: $0.003 in USDC per su…
fxCurrency 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 between two dates. Source: ECB reference rates via Frankfurter. Price: $0.002 in USDC per successful call, paid with x402…
sitemapAll 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. Price: $0.002 in USDC pe…
solana_walletSolana 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. Related tools on this server, for a different need: so…
translateTranslation with Llama 3.1 8B: up to 6,000 characters per call, formatting, names, numbers and URLs kept, source language detected when not given. Language codes like en, tr, de, fr, es, ar, zh, or language names. Related tools on this server, for a different need: translate_sub…
metaSEO and sharing metadata of one web page, read from its HTML without JavaScript: final URL and status, title and description with their lengths, canonical, robots meta, lang, hreflang, Open Graph and Twitter card tags, JSON-LD types and objects, favicon, heading outline, word co…
linksEvery link on one page (anchor text, internal or external) and a status check of up to 40 of them: status, final URL after redirects, ok, and the error for network failures. Totals: found, checked, broken, redirected and skipped beyond the 40. scope=all, internal or external. ro…
redirectsThe redirect chain of a URL, hop by hop (at most 10 hops): each URL, its status, the Location it points to, and whether the hop goes from http to https or changes host. Returns the final URL and status, total hops, loop true when a URL repeats, and the Strict-Transport-Security…
headersSecurity headers of a URL's final response: Strict-Transport-Security, Content-Security-Policy, X-Frame-Options (or CSP frame-ancestors), X-Content-Type-Options, Referrer-Policy, Permissions-Policy, Cross-Origin-Opener-Policy and Cross-Origin-Resource-Policy, each with present,…
dnsMail 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 warning above 10 lookups); the DMARC policy; DKIM keys under common selectors; MTA-STS, TLS-RPT and BIMI; an issues list an…
qrA QR code for a text of up to 300 characters (a URL, Wi-Fi login or contact card), generated locally. format=svg returns the image itself as image/svg+xml; format=json returns the version, the module count, the SVG and a data URI. Error correction L, M, Q or H (default M); size…
langThe 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 three next most likely languages. Send texts= (a JSON array of up to 20 strings) for a batch. Under 20 characters the a…
exifCamera make and model, lens, date taken, exposure (ISO, shutter, aperture, focal length), orientation, image size, software, and GPS latitude, longitude and altitude with a map link, from the EXIF of a JPEG, HEIC, TIFF or PNG image at a URL. Only the first 256 KB is read. A file…
validateChecks the check digit and structure of an identifier with no network call: ISBN-10 and ISBN-13 (with ISBN-10 to 13 conversion), EAN-8, UPC-A, EAN-13 and GTIN-14 (with the GS1 prefix country), VIN (manufacturer code, region, model year), IMEI, ISIN (country) and a generic Luhn n…
ocrReads the text of an image (JPEG, PNG, GIF or WEBP, up to 4 MB) with Llama 3.2 11B Vision on Workers AI. Send an https url or base64 image, and optionally a language hint. Returns the full text with its line breaks, the lines, a language guess and the model that answered. An ima…
sec_filingsRecent 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. So…
sec_financialsKey figures per fiscal year or quarter from a company's SEC XBRL filings, the numbers it tagged itself: revenue, net income, operating income, assets, liabilities, equity, cash, operating cash flow, diluted EPS and shares outstanding. Each value carries the form and filing date…
congressUS 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 full-text search; each match gets its sponsor, status and latest action. A bill number (bill=hr1234-119) returns its cos…
macroOfficial 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, henry_hub_gas, us_house_price_index, ecb_deposit_rate, ecb_main_refi_rate and euro_area_hicp. Latest value, change vs…
uk_companyA UK company from Companies House, by number (00445790) or name (best match plus up to four alternatives): status, incorporation date, registered office, SIC codes, accounts and confirmation-statement due dates with overdue flags, current officers (max 20), persons with signific…
github_repoA public GitHub repository: stars, forks, watchers, open issues and pull requests, license, default branch, created and pushed dates, topics, languages with shares, latest release, commits in the last four weeks and the top five contributors. Up to six GitHub requests per call.…
hnHacker 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…
wikiA Wikipedia page summary by title or search words, in any language: title, short description, summary, page URL, thumbnail and Wikidata ID. For organisations, people and places, Wikidata facts: official website, inception, country, headquarters, date of birth and coordinates. Te…
gasGas 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 priority fees, the latest block, and what a plain transfer and an ERC-20 transfer cost in native token and USD. EVM figures…
solana_quoteBest Jupiter swap route for a Solana token pair and an amount: input and output in token units, the minimum received after slippage, price impact, effective price, each route hop and USD values. from and to take a mint address or a symbol such as SOL or USDC; a symbol resolves t…
evm_tokenOn-chain facts about an ERC-20 contract on Base (default), Ethereum, Arbitrum, Optimism or Polygon, read over RPC: name, symbol, decimals, total supply, code size, whether it is a proxy (EIP-1967, EIP-1822 or the pre-1967 OpenZeppelin slots) with its implementation and admin, ow…
ensENS 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 to the same address. Returns the avatar and the url, com.twitter, com.github, description and email text records when se…
evm_walletNative balance and the major tokens (USDC, USDT, EURC, DAI, WETH, cbBTC and WBTC where listed) of an EVM address on Base (default), Ethereum, Arbitrum, Optimism, Polygon, or chain=all, with USD values from Coinbase spot prices. One Multicall3 call per chain. Zero balances are om…
evm_addressNative 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 delegated wallet with its delegate. On Ethereum also the ENS primary name, when it resolves back to the address. Read over pu…
evm_balanceERC-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 price for the symbol. Only the token you name is read; the native balance is in /api/evm/address. Related tools on this se…
evm_txStatus, 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, from, to, amount). A pending transaction returns status pending. Read over public RPC; a fallback node is used when t…
evm_blockAn 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. Related tools on this server, for a different need: evm_address when you need native balance, nonce and account type of an EVM address; evm_a…
evm_transfersERC-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. R…
evm_logsEvent logs of a contract over recent blocks (default 1,000, max 5,000), newest first, max 100: block, transaction hash, topics and data. topic0 takes an event signature such as Transfer(address,address,uint256) or a 32-byte hash. Public nodes refuse very large results: narrow th…
evm_callRead-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 function whose name reads like a write (transfer, approve, mint, set...) is refused unless it is declared view or pure. Re…
evm_allowanceERC-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 is at least 2^255, the usual approve-everything value. Read-only. Related tools on this server, for a different need: e…
evm_nftERC-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 metadata fetch has a 5-second timeout and a 256 KB cap; a failed fetch is reported in metadataNote and does not fail the cal…
solana_txA Solana transaction by signature: status, time, fee in SOL and USD, signers, SOL balance changes per account, token balance changes (mint, owner, change) and the programs it invoked. Read-only; nothing is sent. A very new signature may be missing (404, not charged). Related too…
solana_accountA Solana account: lamports and SOL with a USD value, owner program, executable flag and data size. Token accounts and mints are parsed (mint, owner, amount and decimals; supply and authorities). Read-only over Solana JSON-RPC. Related tools on this server, for a different need:…
crypto_priceUSD 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. Symbols without a price are listed in unavailable. Cached 15 seconds. Information only, not financial advice. Related…
crypto_candlesOHLCV 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. Prices are that venue's trades only; when Coinbase is rate-limited the same candles come from Kraken or Bitstamp and…
crypto_orderbookA 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. Related tools on this ser…
defi_tvlTotal 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 changes. A protocol's history is too large to read here, so it has no change figures. Attribution: Data: DefiLlama. In…
defi_yieldsDeFi 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 base and reward; reward APYs are often temporary. Attribution: Data: DefiLlama. Information only, not financial advice.…
defi_stablecoinsStablecoins 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 largest. Attribution: Data: DefiLlama. Information only, not financial advice. Related tools on this server, for a diff…
sec_insidersThe latest Form 4 insider transactions of a US company (ticker, CIK or name): insider name and role, transaction date, code (P buy, S sell, A grant, M exercise, F tax withholding), shares, price and shares owned afterwards, with the filing link. Common-stock lines only; derivati…
weatherWeather 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). Related tools on this server, for a differ…
geocodePlace 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 code and type. Attribution: © OpenStreetMap contributors, ODbL. Results are cached seven days. Price: $0.002 in USDC per…
ipWho owns an IP address: network name, CIDR, owner, abuse contact (RDAP), ASN and holder (RIPEstat), and reverse DNS. Private, reserved and documentation addresses are refused with 400. Public registry data only. Price: $0.002 in USDC per successful call, paid with x402 (Base, So…
holidaysPublic 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 its counties. Source: Nager.Date. An empty list is a valid answer. Price: $0.002 in USDC per successful call, paid wit…
postcodePlace names and coordinates for a postcode. GB adds district, ward and constituency (postcodes.io); other countries use Zippopotam.us for ZIP and postal codes. A postcode that does not exist answers 404, not charged. Price: $0.002 in USDC per successful call, paid with x402 (Bas…
packageFacts about a package on npm, PyPI or crates.io: latest version and date, license, description, repository, maintainers (npm), weekly downloads (npm), a deprecated or yanked flag, and how many known vulnerabilities the latest version has (OSV). Related tools on this server, for…
vulnsKnown vulnerabilities of one package version in the OSV database: npm, PyPI, crates.io, Go or Maven. Each advisory has its id, CVE aliases, summary, severity, fixed versions and a link. The count is the full number; up to 20 are listed. Price: $0.002 in USDC per successful call,…
github_userA GitHub user's public profile (name, company, location, blog, bio, followers, public repos, creation date) and their five most-starred repositories that are not forks. Related tools on this server, for a different need: github_repo when you need a public GitHub repository: star…
arxivarXiv papers matching search terms, optionally in one category (cs.AI, math.CO), newest first, max 25: id, title, authors, dates, a 500-character summary, categories and the PDF link. Attribution: Thank you to arXiv for use of its open access interoperability. Price: $0.002 in U…
doiA 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. Price: $0.002 in USDC per successful call, paid with x402 (Bas…
extractStructured data from a web page (url) or your own text: give a schema of up to 20 field names with what each holds, and get a JSON object with exactly those fields, null where the text does not state one. Llama 3.3 70B. Text is capped at 12,000 characters; a model answer that is…
summarizeA summary of a web page (url) or your own text (up to 12,000 characters) as short, medium or bullets, in the language you name, with key points. Llama 3.3 70B. A page is read as in /api/read, robots.txt respected. Price: $0.003 in USDC per successful call, paid with x402 (Base,…
sentimentSentiment of one text, or up to 20 (texts, a JSON array), each up to 2,000 characters: POSITIVE or NEGATIVE with the model's confidence, from DistilBERT SST-2. Best for short English text. It measures the wording, not whether the statement is true. Price: $0.002 in USDC per succ…
rerankOrders up to 50 documents by relevance to a query with the BGE reranker and returns rank, index and score for each. Use it after a keyword or vector search to pick the best few. Scores compare documents within one call only. Price: $0.002 in USDC per successful call, paid with x…
Details
| Endpoint | https://api.sitecheck-api.workers.dev/mcp?ref=registry (Streamable HTTP) |
| First published | 16 Oct 2026 |
| Last updated | 16 Oct 2026 |
| Registry name | io.github.bck-stack/sitecheck |
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