Sato Hub
x402 merchant

api.vextorium.com

Onchain data API on Base, Optimism and Polygon, paid per request with x402.

  • Endpoints2,395
  • Price per requestfrom $0.001
  • Outside payers · 7dn/a
  • Answer 4020 of 7

Overview

as of 2026-10-06
Seller wallet
0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf
Chains
BaseOptimismPolygon
Hosts
api.vextorium.com
CategoriesCategoriesAssigned automatically from the seller’s own listing text. A filter hint, not a claim about the service.
Onchain data869Market data531Other305Developer tools275Security88Web data83Identity82Media59Commerce58AI models22Search17Agents6
First seen
2026-10-05 · last seen 2026-10-06

What we observed

Payments unknown, unknownNo 402 answer, not 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.
2,398 registered
  • https://api.vextorium.com/demanda-electrica-espana-pago

    Daily electricity demand in Spain (MWh) for the last N days with average, peak and low days and change versus the previous half of the period. Red Electrica de Espana data.

    PolygonOther

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/demanda-electrica-espana-pago

    Daily electricity demand in Spain (MWh) for the last N days with average, peak and low days and change versus the previous half of the period. Red Electrica de Espana data.

    OptimismOther

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/detectar-tecnologias-pago

    Detect the technologies behind a website: CMS (WordPress, Shopify...), frameworks (Next.js, React...), server and CDN, analytics, payments, chat, cookie manager, captcha and fonts, from HTML and headers. For lead genera…

    OptimismCommerce

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/detectar-tecnologias-pago

    Detect the technologies behind a website: CMS (WordPress, Shopify...), frameworks (Next.js, React...), server and CDN, analytics, payments, chat, cookie manager, captcha and fonts, from HTML and headers. For lead genera…

    PolygonCommerce

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/deuda-eeuu-pago

    Total US public debt outstanding to the penny (held by the public and intragovernmental), with its change over 30 days and one year and the average daily increase. Official US Treasury Fiscal Data.

    PolygonMarket data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/deuda-eeuu-pago

    Total US public debt outstanding to the penny (held by the public and intragovernmental), with its change over 30 days and one year and the average daily increase. Official US Treasury Fiscal Data.

    OptimismMarket data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/deuda-publica-ue-pago

    General government gross debt (Maastricht) as % of GDP for any European country, quarterly; without a country, a ranking with the latest figure of each. Official Eurostat data.

    OptimismMarket data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/deuda-publica-ue-pago

    General government gross debt (Maastricht) as % of GDP for any European country, quarterly; without a country, a ranking with the latest figure of each. Official Eurostat data.

    PolygonMarket data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/dex-buscar-pago

    Search trading pairs on every DEX and chain by name, symbol or address: price, liquidity, 24h volume, market cap, 24h and 1h change and pair age, sorted by liquidity. Live from DEX Screener.

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/dex-buscar-pago

    Search trading pairs on every DEX and chain by name, symbol or address: price, liquidity, 24h volume, market cap, 24h and 1h change and pair age, sorted by liquidity. Live from DEX Screener.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/dex-par-pago

    Trading pairs for a token across all chains (by symbol, name or address): price, 24h/1h change, on-chain liquidity, 24h volume, market cap, DEX and chain. Filter by chain (use the token address for a precise per-chain v…

    OptimismOnchain data

    n/a/ request

    2026-10-05

  • https://api.vextorium.com/dex-par-pago

    Trading pairs for a token across all chains (by symbol, name or address): price, 24h/1h change, on-chain liquidity, 24h volume, market cap, DEX and chain. Filter by chain (use the token address for a precise per-chain v…

    PolygonOnchain data

    n/a/ request

    2026-10-05

  • https://api.vextorium.com/dex-tendencias-pago

    Tokens getting attention on DEX Screener: top boosted (paid promotion, flagged as such), latest boosts or newest token profiles, with chain, address, description and social links. Filter by chain.

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/dex-tendencias-pago

    Tokens getting attention on DEX Screener: top boosted (paid promotion, flagged as such), latest boosts or newest token profiles, with chain, address, description and social links. Filter by chain.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/dex-volumen-pago

    Decentralized exchanges ranked by traded volume (24h and 7d), each with its market share and 7d change, plus total volume. Optional per chain (great to see who leads on Base, Solana...). Live from DefiLlama.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/dex-volumen-pago

    Decentralized exchanges ranked by traded volume (24h and 7d), each with its market share and 7d change, plus total volume. Optional per chain (great to see who leads on Base, Solana...). Live from DefiLlama.

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/dex-volumen-protocolo-pago

    Trading volume of a specific DEX (Uniswap, Raydium, Aerodrome, PancakeSwap...): 24h, 7d, 30d, 1 year and all time, 24h change, chains and share of total DEX volume. DefiLlama data.

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/dex-volumen-protocolo-pago

    Trading volume of a specific DEX (Uniswap, Raydium, Aerodrome, PancakeSwap...): 24h, 7d, 30d, 1 year and all time, 24h change, chains and share of total DEX volume. DefiLlama data.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/dias-habiles-pais-pago

    Business days in 150+ countries and their regions: count between two dates, or the date after adding N business days, skipping weekends and official holidays, listing the holidays in the range.

    OptimismOther

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/dias-habiles-pais-pago

    Business days in 150+ countries and their regions: count between two dates, or the date after adding N business days, skipping weekends and official holidays, listing the holidays in the range.

    PolygonOther

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/diferencias-texto-pago

    Compare two texts by lines or words: similarity %, added and removed items, list of changes with positions, and a unified diff. For contract versions, prompts, configs or scraped pages.

    OptimismDeveloper tools

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/diferencias-texto-pago

    Compare two texts by lines or words: similarity %, added and removed items, list of changes with positions, and a unified diff. For contract versions, prompts, configs or scraped pages.

    PolygonDeveloper tools

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/direccion-contrato-pago

    Compute a contract address in advance: CREATE (deployer + nonce) or CREATE2 (deployer + salt + init code hash). For deterministic deployments and verifying announced addresses.

    OptimismDeveloper tools

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/direccion-contrato-pago

    Compute a contract address in advance: CREATE (deployer + nonce) or CREATE2 (deployer + salt + init code hash). For deterministic deployments and verifying announced addresses.

    PolygonDeveloper tools

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/direccion-identidad-pago

    Who an EVM address is before you interact: public labels (exchange, protocol, bridge, fund...), ENS name, whether it is a contract and which, verification, scam flag or poor reputation, EIP-7702 delegation, balance and …

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/direccion-identidad-pago

    Who an EVM address is before you interact: public labels (exchange, protocol, bridge, fund...), ENS name, whether it is a contract and which, verification, scam flag or poor reputation, EIP-7702 delegation, balance and …

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/distancia-aeropuertos-pago

    Great-circle distance between two airports by IATA or ICAO code in km, miles and nautical miles, bearing, approximate flight time and estimated economy-class CO2 per passenger.

    OptimismCommerce

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/distancia-aeropuertos-pago

    Great-circle distance between two airports by IATA or ICAO code in km, miles and nautical miles, bearing, approximate flight time and estimated economy-class CO2 per passenger.

    PolygonCommerce

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/divisas-mundo-pago

    Daily exchange rates against the US dollar for about 60 currencies, emerging ones included (Argentine peso, Turkish lira, rupee, naira...), with date and 1-month change. Bank for International Settlements data.

    OptimismMarket data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/divisas-mundo-pago

    Daily exchange rates against the US dollar for about 60 currencies, emerging ones included (Argentine peso, Turkish lira, rupee, naira...), with date and 1-month change. Bank for International Settlements data.

    PolygonMarket data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/divisas-serie-pago

    Daily ECB reference exchange rate of a currency against the euro for up to 5 years: latest, change, high, low, average and annualized volatility, with the series.

    PolygonMarket data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/divisas-serie-pago

    Daily ECB reference exchange rate of a currency against the euro for up to 5 years: latest, change, high, low, average and annualized volatility, with the series.

    OptimismMarket data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/divisas-tesoro-eeuu-pago

    Official US Treasury reporting rates of exchange (quarterly) for about 170 currencies against the US dollar, including many the ECB does not publish (Argentine peso, naira, bolivar...), with history per country.

    PolygonOther

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/divisas-tesoro-eeuu-pago

    Official US Treasury reporting rates of exchange (quarterly) for about 170 currencies against the US dollar, including many the ECB does not publish (Argentine peso, naira, bolivar...), with history per country.

    OptimismOther

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/dns-consulta-pago

    DNS records of a domain with TTL: A, AAAA, CNAME, MX, NS, TXT, SOA, CAA, SRV, HTTPS. Choose the types or get the common ones at once.

    PolygonIdentity

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/dns-consulta-pago

    DNS records of a domain with TTL: A, AAAA, CNAME, MX, NS, TXT, SOA, CAA, SRV, HTTPS. Choose the types or get the common ones at once.

    OptimismIdentity

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/dns-propagacion-pago

    Check DNS propagation of a record across 8 public resolvers worldwide (Google, Cloudflare, Quad9, OpenDNS, AdGuard...): each answer and TTL and whether they all agree. Use after changing DNS.

    PolygonIdentity

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/dns-propagacion-pago

    Check DNS propagation of a record across 8 public resolvers worldwide (Google, Cloudflare, Quad9, OpenDNS, AdGuard...): each answer and TTL and whether they all agree. Use after changing DNS.

    OptimismIdentity

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/docker-imagen-pago

    Docker Hub image profile (official or user): description, stars, total pulls, last update and recent tags with size and architectures.

    PolygonMedia

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/docker-imagen-pago

    Docker Hub image profile (official or user): description, stars, total pulls, last update and recent tags with size and architectures.

    OptimismMedia

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/dominio-disponible-pago

    Check whether up to 20 domains are registered or free using each registry's official RDAP service, with creation and expiry dates, registrar and status. Some country TLDs (.es, .de...) have no public RDAP and are report…

    PolygonIdentity

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/dominio-disponible-pago

    Check whether up to 20 domains are registered or free using each registry's official RDAP service, with creation and expiry dates, registrar and status. Some country TLDs (.es, .de...) have no public RDAP and are report…

    OptimismIdentity

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/electricidad-precios-europa-pago

    Wholesale day-ahead electricity price in a European country or zone (DE, FR, ES, PT, IT, NL, BE, AT, PL, CH, Nordics...) for today or a given day: hourly EUR/MWh, average, max, min and cheapest and most expensive hours.…

    PolygonOther

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/electricidad-precios-europa-pago

    Wholesale day-ahead electricity price in a European country or zone (DE, FR, ES, PT, IT, NL, BE, AT, PL, CH, Nordics...) for today or a given day: hourly EUR/MWh, average, max, min and cheapest and most expensive hours.…

    OptimismOther

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/electricidad-precios-ue-pago

    Average household electricity price (2,500-5,000 kWh/year band) in EUR/kWh by European country, with or without taxes: ranking or half-yearly evolution of one country. Official Eurostat data.

    PolygonOther

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/electricidad-precios-ue-pago

    Average household electricity price (2,500-5,000 kWh/year band) in EUR/kWh by European country, with or without taxes: ranking or half-yearly evolution of one country. Official Eurostat data.

    OptimismOther

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/emisiones-co2-espana-pago

    Daily CO2 emissions of electricity generation in Spain (tonnes) by technology (combined cycle, cogeneration, coal...) and emission factor (tCO2/MWh) over the last days. Red Electrica de Espana data.

    PolygonOther

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/emisiones-co2-espana-pago

    Daily CO2 emissions of electricity generation in Spain (tonnes) by technology (combined cycle, cogeneration, coal...) and emission factor (tCO2/MWh) over the last days. Red Electrica de Espana data.

    OptimismOther

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/empleo-eeuu-pago

    US labor market: unemployment rate, nonfarm payrolls with monthly job change, and average hourly earnings with annual growth. US Bureau of Labor Statistics, public domain.

    PolygonMarket data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/empleo-eeuu-pago

    US labor market: unemployment rate, nonfarm payrolls with monthly job change, and average hourly earnings with annual growth. US Bureau of Labor Statistics, public domain.

    OptimismMarket data

    n/a/ request

    2026-10-06

Evidence

as of 2026-10-06

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.

0 of 7

0 of 7 probed endpoints answered HTTP 402 with a parseable payment payload

checked 2026-10-06

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. the 7-day payments read on Base did not complete (ranges over 10000 blocks are not supported on free plan)

window ended 2026-10-06

By chain

ChainSeller walletEndpointsAnswers 402x402-style payments
Base0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf1,0110 of 5 probed endpoints answered HTTP 402 with a parseable payment payload
2026-10-06
unknown. the 7-day payments read on Base did not complete (ranges over 10000 blocks are not supported on free plan)
Optimism0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf8290 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-28
unknown. not measured on this chain yet
Polygon0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf5550 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-28
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
$0.001
per request, as registeredas of
Highest
$0.02
per request, as registeredas of

The price each endpoint registered in the x402 catalogue. A listed price is a registration, not an observed charge.

Claim this merchant

Sign a message from the payout address 0xb9f06d…b71acf to claim this page or download its payment ledger. 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.

Data CC-BY-4.0, attribution: data by satohub.ai. Data: x402-list.com (CC BY 4.0). Data as of 2026-10-06. Appearing here is not an endorsement. Check an endpoint with the doctor.