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/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 is checked against the rule of the country (for 18 countries…

    XRP LedgerDeveloper tools

    n/a/ request

    2026-10-21

  • https://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 and noimageai opt-outs in meta and X-Robots-Tag, and whether …

    XRP LedgerWeb data

    n/a/ request

    2026-10-21

  • https://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 within a radius (up to 300 km) of a point. Covers large and medi…

    XRP LedgerCommerce

    n/a/ request

    2026-10-21

  • https://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, categories and the PDF link. Attribution: Thank you to arXiv for…

    XRP LedgerSearch

    n/a/ request

    2026-10-21

  • https://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 and ISBN-13 of the matching edition, languages, subjects, cov…

    XRP LedgerOther

    n/a/ request

    2026-10-21

  • https://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 net change for the address. Mainnet bech32 and legacy addres…

    XRP LedgerOnchain data

    n/a/ request

    2026-10-21

  • https://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 BTC and USD. Source: mempool.space; USD from Coinbase spot…

    XRP LedgerOnchain data

    n/a/ request

    2026-10-21

  • https://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 signals replace-by-fee. Source: mempool.space. Information…

    XRP LedgerOnchain data

    n/a/ request

    2026-10-21

  • https://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; mode=add gives the date that is N working days after `date` (…

    XRP LedgerOther

    n/a/ request

    2026-10-21

  • https://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 dates, enrolment, number of locations and the study link. …

    XRP LedgerOther

    n/a/ request

    2026-10-21

  • https://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 the words you give (the names that start with it first). Fro…

    XRP LedgerIdentity

    n/a/ request

    2026-10-21

  • https://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 full-text search; each match gets its sponsor, status and la…

    XRP LedgerSearch

    n/a/ request

    2026-10-21

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

    Company 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.

    XRP LedgerIdentity

    n/a/ request

    2026-10-22

  • https://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 first. Names (MON, JAN) and steps are supported. Computed i…

    XRP LedgerDeveloper tools

    n/a/ request

    2026-10-21

  • https://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. Prices are that venue's trades only. Information only, no…

    XRP LedgerMarket data

    n/a/ request

    2026-10-21

  • https://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 used (direct, or through USD) and the time of the rate. Spot…

    XRP LedgerMarket data

    n/a/ request

    2026-10-21

  • https://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. Information only, not financial advice.

    XRP LedgerMarket data

    n/a/ request

    2026-10-21

  • https://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, the next funding time, open interest in coins and USD, and…

    XRP LedgerMarket data

    n/a/ request

    2026-10-22

  • https://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 time, the coins named in the text, and at most 200 characters…

    XRP LedgerWeb data

    n/a/ request

    2026-10-21

  • https://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 is a snapshot, not a quote: prices move between calls. Infor…

    XRP LedgerMarket data

    n/a/ request

    2026-10-21

  • https://api.sitecheck-api.workers.dev/api/crypto/whales

    Large stablecoin and major-token transfers in the last few minutes on Ethereum, Base, Arbitrum, Optimism or Polygon: hash, block time, sender, receiver, amount and USD value at the Coinbase spot price, sorted by value. …

    XRP LedgerOnchain data

    n/a/ request

    2026-10-21

  • https://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 years, months, weeks, days, hours or minutes (month ends are cl…

    XRP LedgerDeveloper tools

    n/a/ request

    2026-10-21

  • https://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 TVL change over 1, 7 and 30 days from DefiLlama's daily hi…

    XRP LedgerOnchain data

    n/a/ request

    2026-10-21

  • https://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. Information only, not financial advice.

    XRP LedgerOnchain data

    n/a/ request

    2026-10-21

  • https://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. Attribution: Data: DefiLlama. Information only, not financial adv…

    XRP LedgerOnchain data

    n/a/ request

    2026-10-21

  • https://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 largest. Attribution: Data: DefiLlama. Information only, no…

    XRP LedgerOnchain data

    n/a/ request

    2026-10-21

  • https://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 changes. A protocol's history is too large to read here, s…

    XRP LedgerOnchain data

    n/a/ request

    2026-10-21

  • https://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 base and reward; reward APYs are often temporary. Attributi…

    XRP LedgerOnchain data

    n/a/ request

    2026-10-21

  • https://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, pair address, base/quote tokens, USD price, liquidity, 24h v…

    XRP LedgerOnchain data

    n/a/ request

    2026-10-21

  • https://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, start date, severity and link. Filter by type and alert level.…

    XRP LedgerOther

    n/a/ request

    2026-10-21

  • https://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 OpenStreetMap data, ODbL). Straight-line distance only, not…

    XRP LedgerOther

    n/a/ request

    2026-10-21

  • https://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 warning above 10 lookups); the DMARC policy; DKIM keys under co…

    XRP LedgerIdentity

    n/a/ request

    2026-10-21

  • https://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 search (max 10). An unknown DOI answers 404, not charged.

    XRP LedgerOther

    n/a/ request

    2026-10-21

  • https://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 codes, DNSSEC, name servers, plus whether it resolves (IPv4…

    XRP LedgerIdentity

    n/a/ request

    2026-10-21

  • https://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 dnstwist), checks up to 30 of them in DNS (A records), and reads …

    XRP LedgerIdentity

    n/a/ request

    2026-10-21

  • https://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 (max 30) and a radius around a point. Public domain data.

    XRP LedgerOther

    n/a/ request

    2026-10-21

  • https://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, government debt and lending interest rate, with the year, va…

    XRP LedgerMarket data

    n/a/ request

    2026-10-21

  • https://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 CC0 list), role account (info@, sales@...), free provider an…

    XRP LedgerIdentity

    n/a/ request

    2026-10-21

  • https://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.

    XRP LedgerAI models

    n/a/ request

    2026-10-21

  • https://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, direction }, up to 1 MB. Invalid input to decode is a 400 that n…

    XRP LedgerDeveloper tools

    n/a/ request

    2026-10-21

  • https://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 to the same address. Returns the avatar and the url, com.twi…

    XRP LedgerWeb data

    n/a/ request

    2026-10-21

  • https://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 the trader's name in this check, so it is null. An HMRC outa…

    XRP LedgerOther

    n/a/ request

    2026-10-21

  • https://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 and link, newest first. Country is an ISO alpha-3 code (DEU…

    XRP LedgerOther

    n/a/ request

    2026-10-21

  • https://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 delegated wallet with its delegate. On Ethereum also the ENS prim…

    XRP LedgerOnchain data

    n/a/ request

    2026-10-21

  • https://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 is at least 2^255, the usual approve-everything value. Read…

    XRP LedgerOnchain data

    n/a/ request

    2026-10-21

  • https://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 price for the symbol. Only the token you name is read; the nat…

    XRP LedgerOnchain data

    n/a/ request

    2026-10-21

  • https://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.

    XRP LedgerOnchain data

    n/a/ request

    2026-10-21

  • https://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 function whose name reads like a write (transfer, approve, min…

    XRP LedgerOnchain data

    n/a/ request

    2026-10-21

  • https://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 ABI. A contract without verified source is answered with veri…

    XRP LedgerOnchain data

    n/a/ request

    2026-10-21

  • https://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). since keeps items published on or after a date.

    XRP LedgerWeb data

    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.