Sato Hub
x402 merchant

api.sitecheck-api.workers.dev

Developer tools API on XRP Ledger, paid per request with x402.

  • Endpoints104
  • Price per requestn/a
  • Outside payersn/a
  • Answer 4021 of 1

Overview

as of 2026-10-23
Seller wallet
rDxNZCDfLxUzeMWGGwsY3sjQT8eoZCf8UJ
Chains
XRP Ledger
Hosts
api.sitecheck-api.workers.dev
CategoriesCategoriesAssigned automatically from the seller’s own listing text. A filter hint, not a claim about the service.
Developer tools23Onchain data21Other17Market data12Web data10Identity8Search5AI models4Media3Commerce1
First seen
2026-10-21 · last seen 2026-10-23

What we observed

Payments unknown, unknownAnswers 402, observedNot claimed
See the readings

Endpoints

EndpointsDescriptions are the seller's own words from the catalogue and are not checked by us. A listed price is a registration, not an observed charge.
104 registered
  • https://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 months). mode=compound: future value of an initial sum plus m…

    XRP LedgerDeveloper tools

    n/a/ request

    2026-10-21

  • https://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 between two dates. Source: ECB reference rates via Frankfurte…

    XRP LedgerMarket data

    n/a/ request

    2026-10-21

  • https://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 priority fees, the latest block, and what a plain transfer and …

    XRP LedgerOnchain data

    n/a/ request

    2026-10-21

  • https://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 code and type. Attribution: © OpenStreetMap contributors, ODb…

    XRP LedgerOther

    n/a/ request

    2026-10-21

  • https://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 base64 output. MD5 and CRC-32 are implemented here and check…

    XRP LedgerDeveloper tools

    n/a/ request

    2026-10-21

  • https://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, Referrer-Policy, Permissions-Policy, Cross-Origin-Opener-…

    XRP LedgerDeveloper tools

    n/a/ request

    2026-10-21

  • https://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 title, URL, HN link, points, comments, author and time. Comme…

    XRP LedgerSearch

    n/a/ request

    2026-10-21

  • https://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 its counties. Source: Nager.Date. An empty list is a valid…

    XRP LedgerOther

    n/a/ request

    2026-10-21

  • https://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 where a public algorithm exists (FR, ES, IT, BE, NL, NO, FI, …

    XRP LedgerDeveloper tools

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/image

    Generate an image from a text prompt (FLUX.1 schnell). Returns a base64 JPEG. Fast, 1024x1024.

    XRP LedgerAI models

    n/a/ request

    2026-10-23

  • https://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 and data are each limited to 200 KB. Remote $ref targets ar…

    XRP LedgerDeveloper tools

    n/a/ request

    2026-10-21

  • https://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 code first; the model is asked once only when code cannot re…

    XRP LedgerDeveloper tools

    n/a/ request

    2026-10-21

  • https://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 (public https) the signature is checked with WebCrypto for RS, …

    XRP LedgerDeveloper tools

    n/a/ request

    2026-10-21

  • https://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 three next most likely languages. Send texts= (a JSON array…

    XRP LedgerDeveloper tools

    n/a/ request

    2026-10-21

  • https://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 site itself, through the same URL guard and size cap as the…

    XRP LedgerAI models

    n/a/ request

    2026-10-21

  • https://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 page and its manifest. Falls back to /favicon.ico when the …

    XRP LedgerMedia

    n/a/ request

    2026-10-21

  • https://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, henry_hub_gas, us_house_price_index, ecb_deposit_rate, ec…

    XRP LedgerMarket data

    n/a/ request

    2026-10-22

  • https://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 unless allowHtml is true; links and images with javascript…

    XRP LedgerWeb data

    n/a/ request

    2026-10-21

  • https://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, close and resolution times, resolution source. Powered by Pan…

    XRP LedgerMarket data

    n/a/ request

    2026-10-22

  • https://api.sitecheck-api.workers.dev/api/markets/brief

    One Panta prediction market in depth: current YES/NO odds, recent trading activity and a short neutral AI summary of what it asks, what resolves it and what the price implies. No advice. Powered by Panta.

    XRP LedgerMarket data

    n/a/ request

    2026-10-22

  • https://api.sitecheck-api.workers.dev/api/markets/quote

    Quote a YES or NO buy on a Panta market for a USDC amount and wallet: expected shares, average fill price, fee and price impact against the spot price. Nothing is signed or sent. Powered by Panta.

    XRP LedgerMarket data

    n/a/ request

    2026-10-22

  • https://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, robots meta, lang, hreflang, Open Graph and Twitter card tags, …

    XRP LedgerWeb data

    n/a/ request

    2026-10-21

  • https://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 provider gives type, name, credential, status, primary taxonomy …

    XRP LedgerSearch

    n/a/ request

    2026-10-21

  • https://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 (mobile, fixed line, toll free and so on). Without a + sign…

    XRP LedgerIdentity

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/pm/search

    Searches open prediction markets on Polymarket (real money, USDC) and Manifold (play money) by keywords, with optional closing-date window and minimum volume. Each row: venue, question, outcomes with prices (implied pro…

    XRP LedgerMarket data

    n/a/ request

    2026-10-22

  • https://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. A postcode that does not exist answers 404, not charged.

    XRP LedgerOther

    n/a/ request

    2026-10-21

  • https://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 name, tagline, votes, comments, launch time, links and topi…

    XRP LedgerSearch

    n/a/ request

    2026-10-23

  • https://api.sitecheck-api.workers.dev/api/pubmed

    PubMed 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.

    XRP LedgerWeb data

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/qr

    A 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 …

    XRP LedgerMedia

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/redirects

    The 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…

    XRP LedgerWeb data

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/robots

    Checks whether a URL's path may be crawled under robots.txt (RFC 9309): the verdict for a user agent (default: *, Googlebot, Bingbot, GPTBot, ClaudeBot, PerplexityBot, Google-Extended and CCBot), the rule that decided i…

    XRP LedgerWeb data

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/rpc/evm

    Read-only JSON-RPC pass-through for 20+ EVM chains (ethereum, base, arbitrum, optimism, polygon, bsc, avalanche, gnosis, linea, scroll, zksync, mantle, blast, celo, fantom, sonic, unichain, opbnb, zora, mode, metis, cro…

    XRP LedgerOnchain data

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/rpc/solana

    Read-only JSON-RPC pass-through for Solana mainnet. Allowed methods: getAccountInfo, getBalance, getTransaction, getSignaturesForAddress (limit <= 100), getTokenAccountsByOwner, getTokenSupply, getSlot, getBlockTime, ge…

    XRP LedgerOnchain data

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/sentiment

    Sentiment 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 w…

    XRP LedgerDeveloper tools

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/solana/wallet

    Solana 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 …

    XRP LedgerOnchain data

    n/a/ request

    2026-10-22

  • https://api.sitecheck-api.workers.dev/api/ssl

    TLS certificate expiry for up to 10 hostnames: the issuer, validity dates, days left, all DNS names and a status (ok, expiring within 14 days, expired, none found). Read from Certificate Transparency logs (CertSpotter, …

    XRP LedgerIdentity

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/stackoverflow

    Stack Overflow questions matching words, optionally by tags and accepted status: title, score, answer count, accepted flag, tags and link. With answers=1 the accepted answer's first 600 characters are included. Content …

    XRP LedgerOther

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/sun

    Sunrise, sunset, solar noon and day length for a coordinate and date (default today), with the moonrise, moonset and phase. Times are ISO 8601 with the offset MET Norway gives (+00:00 is UTC). Attribution: data from MET…

    XRP LedgerOther

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/text/chunk

    Split a long text into chunks for retrieval (RAG): split on paragraphs, then sentences, then words, each chunk within maxTokens (default 500) with the overlap you ask for (default 50 tokens). Each chunk has its index, t…

    XRP LedgerDeveloper tools

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/text/diff

    Differences 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 }: l…

    XRP LedgerDeveloper tools

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/text/keywords

    Keywords and keyphrases from a text by RAKE (Rose et al., 2010) in pure code: phrases between stopwords and punctuation, scored by word degree and frequency, with counts. Stopword lists for en, de, fr, es, it, pt, nl an…

    XRP LedgerDeveloper tools

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/text/readability

    Readability of a text in pure code: Flesch Reading Ease, Flesch-Kincaid grade, Gunning Fog, SMOG, Coleman-Liau and ARI, with counts of characters, words, sentences, syllables and complex words, and reading and speaking …

    XRP LedgerDeveloper tools

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/text/transliterate

    Transliterate 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…

    XRP LedgerDeveloper tools

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/timezone

    The current time in an IANA time zone (its UTC offset and whether DST applies) and, with time and to, the conversion of a local time from one zone to another. Computed in the Worker with the runtime's time zone data; no…

    XRP LedgerDeveloper tools

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/transcribe

    Speech-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.

    XRP LedgerAI models

    n/a/ request

    2026-10-23

  • https://api.sitecheck-api.workers.dev/api/units

    Convert a value between units of length, area, volume (US customary and metric, cooking measures), mass, speed, pressure, energy, power, data size (SI and binary), time and temperature. Factors are exact to the definiti…

    XRP LedgerDeveloper tools

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/uptime

    Checks up to five public URLs now from this Worker: up or down, HTTP status, the final URL after up to five redirects, response time in milliseconds, whether TLS was used, content type and length, and the Cloudflare dat…

    XRP LedgerWeb data

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/us-geocode

    Geocodes a one-line US address with the US Census Bureau: matched address, coordinates, county, state, census tract and block group. Addresses that do not match answer 404 (not charged). Public domain data.

    XRP LedgerOther

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/user-agent

    Parses 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, PerplexityBo…

    XRP LedgerDeveloper tools

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/uuid

    Identifiers and secrets from the Web Crypto random source: UUID v4 and v7, ULID, nanoid (size and alphabet), random passwords (length and character classes) and passphrases (words from the EFF large wordlist, CC BY 3.0 …

    XRP LedgerDeveloper tools

    n/a/ request

    2026-10-21

Evidence

as of 2026-10-23

Answers HTTP 402

Answers HTTP 402Method: one unpaid request per listed endpoint. A 402 with a payment payload a client could parse counts. Nothing is paid.

1 of 1

1 of 1 probed endpoints answered HTTP 402 with a parseable payment payload

checked 2026-10-23

x402-style payments, last 7 days (Base)

x402-style paymentsMethod: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's exact scheme uses. Some non-x402 gasless sends use it too.

unknown

unknown. not measured on this chain yet

no reading date

By chain

ChainSeller walletEndpointsAnswers 402x402-style payments
XRP LedgerrDxNZCDfLxUzeMWGGwsY3sjQT8eoZCf8UJ1041 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-10-23
unknown. not measured on this chain yet

One seller wallet, each chain read on its own. We never send a payment, so we never observe what a paid call returns. Unknown means we hold no reading, not that anything failed.

Pricing

Lowest
n/a
per request, as registeredas of
Median
n/a
per request, as registeredas of
Highest
n/a
per request, as registeredas of

Unknown. Prices are decoded only for USDC on Base and Solana.

Claim this merchant

Sign a message from the payout address rDxNZCDf…ZCf8UJ to claim this page. Claiming proves control of the payout key. It says nothing about the service behind the address, and it does not change how this merchant is ranked. No email, no account: the signature is the whole credential, and signing a message costs no gas and moves nothing.

The payment ledger covers Base only for now, so it is not offered for XRP Ledger.

Data CC-BY-4.0, attribution: data by satohub.ai. Data as of 2026-10-23. Appearing here is not an endorsement. Check an endpoint with the doctor.