Legal notice and terms of use
Last updated: November 5, 20261. Owner
Vextorium is a project operated from Spain by an individual. Contact: [email protected].
2. Services
Vextorium provides pay-per-call data APIs for integration into AI agents and developer tools: public blockchain data, DeFi, oracle prices, market data, official exchange rates and statistics, validations, web tools and developer utilities. It is not a retail information service for one-off personal queries. The current services and prices are listed on the home page and in the machine-readable catalog.
3. Price and payment
- Each call costs the amount shown in the catalog. Payment uses x402 in USDC on Base, Solana, Polygon, Stellar, Optimism or Arc, or RLUSD or XRP on the XRP Ledger.
- An unpaid request returns HTTP 402 with the exact amount. By retrying with payment authorization, the client requests immediate delivery of the service.
- Prices exclude indirect taxes. Network fees are borne by the payment facilitator.
- You are charged only if the service responds successfully. Invalid input or missing data returns a 4xx response and is not charged. If the source is unavailable and we hold no current data, you get a 503 response with Retry-After and are not charged. While a source is unavailable, data we obtained from it that is still current (until the source's next update) may be served, marked with data_as_of and data_valid_until.
- Blockchain payments are final. If you believe you were charged by mistake, email [email protected] with the transaction identifier so it can be reviewed.
- For a digital service supplied immediately at the client's request, the right of withdrawal does not apply once the service has been provided, as permitted by applicable consumer law.
4. Information and data sources
Information is provided for guidance and may contain errors or delays. Sources include: Spanish Official State Gazette (BOE; required source credit: “Fuente de los datos: Agencia Estatal Boletín Oficial del Estado”; boe.es); Spain’s National Statistics Institute (INE; required source credit: “Fuente: Sitio web del INE: www.ine.es”); CartoCiudad and Spain’s National Geographic Institute (IGN; required credit: “© Instituto Geográfico Nacional de España”; CC BY 4.0; changes must be indicated); the European Commission and Eurostat (EU sanctions list, VIES, TED, Weekly Oil Bulletin, HICP and house-price index; CC BY 4.0; Eurostat is credited as “Source: Eurostat”); European Central Bank (ECB statistics; press releases reproduced as published); Bank of England Database (Open Government Licence v3.0; SONIA and SONIA Compounded Index are subject to the Bank’s full attribution and copyright notice); Japan’s Ministry of Finance (JGB interest rates; Public Data License 1.0; data processed by Vextorium); Bank of Canada (data available free at bankofcanada.ca; changes must be indicated); Reserve Bank of Australia (RBA data; CC BY 4.0; free at rba.gov.au); European Securities and Markets Authority (ESMA press releases and FIRDS reference data; free at esma.europa.eu; FIRDS results are limited to active venues and counts are calculated by Vextorium); U.S. Securities and Exchange Commission (SEC/EDGAR); CFTC; Federal Reserve (H.8, H.15 and FOMC); White House; Federal Register; U.S. Treasury Fiscal Data and OFAC sanctions data; U.S. Bureau of Labor Statistics (BLS); openFDA (CC0); NHTSA; FAA; NOAA (National Hurricane Center, Space Weather Prediction Center and Global Monitoring Laboratory); U.S. National Weather Service; USGS; NIST Randomness Beacon; USAspending.gov; Grants.gov; CISA Known Exploited Vulnerabilities (KEV; CC0); World Bank World Development Indicators (CC BY 4.0); GLEIF (CC0); Norwegian Meteorological Institute (MET Norway; CC BY 4.0); Annuaire des Entreprises (Licence Ouverte 2.0); OpenAlex (CC0); Wikidata (CC0); Wikipedia (CC BY-SA 4.0, with links to articles); Wikimedia pageview statistics (CC0); arXiv metadata (CC0); OurAirports (public domain); IANA time-zone data; ethereum-lists/chains (MIT); Alternative.me (Crypto Fear and Greed Index and Crypto API prices); Spain’s Ministry of Finance, including the National Database of Subsidies and Public Sector Procurement Platform (required source credits: “Origen de los datos: Base de Datos Nacional de Subvenciones (IGAE, Ministerio de Hacienda)” or “Origen de los datos: Plataforma de Contratación del Sector Público (Ministerio de Hacienda)”); Energy-Charts by Fraunhofer ISE (CC BY 4.0 data from Germany’s Bundesnetzagentur/SMARD); CVE Program data (© The MITRE Corporation; CVE Program Terms of Use); Crossref metadata (CC0); Open Food Facts (Open Database License); the npm registry; PyPI; and the open-source libraries python-holidays, libphonenumber, zxcvbn, tiktoken and langdetect. Text tools use a local Qwen3-4B model. Other tools perform Vextorium’s own calculations or query the URL, domain, DNS, WHOIS, email-DNS or public RPC endpoint supplied or selected for the particular request.
Vextorium is not affiliated with the SEC, token issuers or any public body listed above and does not provide exchange-traded prices. Information is not financial, investment, legal or tax advice. Format and check-digit validations do not confirm that an account, person, company or mailbox exists.
5. Acceptable use
You may not use the services for illegal activity, to evade international sanctions, to damage or overload the service, or to submit another person's personal data without a legal basis.
6. Availability and liability
The service is provided as is, without a guarantee of continuous availability. The owner's liability is limited to the amount paid for the affected call, without prejudice to any rights that applicable law grants to consumers.
7. Electronic records and applicable law
These terms can be accessed, saved and printed at this URL. Individual contracts are not stored; the blockchain transaction is the payment record. These terms are governed by Spanish law. If you are a consumer, the courts of your place of residence have jurisdiction.