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.
3,010 registered
  • https://api.vextorium.com/saldos-wallet-pago

    Wallet balances on Base or Ethereum in one call: native ETH plus WETH, USDC, USDT, DAI and cbBTC/WBTC (and optionally any extra ERC-20), with approximate USD value from Chainlink oracles.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/saldos-wallet-pago

    Wallet balances on Base or Ethereum in one call: native ETH plus WETH, USDC, USDT, DAI and cbBTC/WBTC (and optionally any extra ERC-20), with approximate USD value from Chainlink oracles.

    OptimismOnchain data

    n/a/ request

    2026-10-06

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

    Screen a person, company, vessel or entity against the EU consolidated financial sanctions list and the US OFAC SDN list, with fuzzy matching of names and aliases, program, type, countries and reference. For KYC/AML bef…

    PolygonSecurity

    n/a/ request

    2026-10-05

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

    Screen a person, company, vessel or entity against the EU consolidated financial sanctions list and the US OFAC SDN list, with fuzzy matching of names and aliases, program, type, countries and reference. For KYC/AML bef…

    OptimismSecurity

    n/a/ request

    2026-10-05

  • https://api.vextorium.com/sanciones-onu-pago

    Check whether a person or entity is on the UN Security Council Consolidated Sanctions List (Al-Qaida, ISIL, Taliban, DPRK, Iran, Libya, Sudan, Yemen...) with fuzzy matching of names and aliases. Complements sanciones-bu…

    PolygonSecurity

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sanciones-onu-pago

    Check whether a person or entity is on the UN Security Council Consolidated Sanctions List (Al-Qaida, ISIL, Taliban, DPRK, Iran, Libya, Sudan, Yemen...) with fuzzy matching of names and aliases. Complements sanciones-bu…

    OptimismSecurity

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sanciones-recientes-pago

    Recent additions to the EU consolidated sanctions list (persons and entities designated in the last N days) with program (country or regime), type and date. Keep a compliance screen up to date.

    PolygonSecurity

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sanciones-recientes-pago

    Recent additions to the EU consolidated sanctions list (persons and entities designated in the last N days) with program (country or regime), type and date. Keep a compliance screen up to date.

    OptimismSecurity

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sec-8k-recientes-pago

    Most recent 8-K current reports filed with the SEC (material events of US companies) with their items: earnings (2.02), material agreements (1.01), officer changes (5.02), acquisitions (2.01), bankruptcy (1.03)... Filte…

    PolygonMarket data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sec-8k-recientes-pago

    Most recent 8-K current reports filed with the SEC (material events of US companies) with their items: earnings (2.02), material agreements (1.01), officer changes (5.02), acquisitions (2.01), bankruptcy (1.03)... Filte…

    OptimismMarket data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sec-insiders-recientes-pago

    Latest SEC Form 4 insider filings across the whole US market: issuer company, who filed (directors, officers, 10% owners), date and link. Filter by company or person. For one company's trade details use insiders-empresa.

    PolygonMarket data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sec-insiders-recientes-pago

    Latest SEC Form 4 insider filings across the whole US market: issuer company, who filed (directors, officers, 10% owners), date and link. Filter by company or person. For one company's trade details use insiders-empresa.

    OptimismMarket data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sec-ipos-recientes-pago

    US IPOs and offerings in the pipeline: latest S-1 and F-1 (foreign issuers) registration statements, amendments and final 424B4 prospectuses (priced), with company, stage, date and link.

    PolygonOther

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sec-ipos-recientes-pago

    US IPOs and offerings in the pipeline: latest S-1 and F-1 (foreign issuers) registration statements, amendments and final 424B4 prospectuses (priced), with company, stage, date and link.

    OptimismOther

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sec-participaciones-recientes-pago

    Latest disclosures of stakes above 5% filed with the SEC: Schedule 13D (activist investors) or 13G (passive), with subject company, filer, date and link, including amendments.

    PolygonOther

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sec-participaciones-recientes-pago

    Latest disclosures of stakes above 5% filed with the SEC: Schedule 13D (activist investors) or 13G (passive), with subject company, filer, date and link, including amendments.

    OptimismOther

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/seguridad-correo-pago

    Email security of a domain: MX, SPF (final policy, multiple-record and lookup-limit problems), DMARC (policy, subdomains, reporting), MTA-STS, TLS-RPT and BIMI, with a score and recommendations. Detects spoofable domain…

    OptimismIdentity

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/seguridad-correo-pago

    Email security of a domain: MX, SPF (final policy, multiple-record and lookup-limit problems), DMARC (policy, subdomains, reporting), MTA-STS, TLS-RPT and BIMI, with a score and recommendations. Detects spoofable domain…

    PolygonIdentity

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/similitud-textos-pago

    Similarity between two texts without AI: TF-IDF cosine, vocabulary Jaccard and character-trigram Jaccard (catches edited copies), shared words and a verdict. For duplicates, plagiarism checks and deduplication.

    PolygonOther

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/similitud-textos-pago

    Similarity between two texts without AI: TF-IDF cosine, vocabulary Jaccard and character-trigram Jaccard (catches edited copies), shared words and a verdict. For duplicates, plagiarism checks and deduplication.

    OptimismOther

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/simulador-dca-pago

    Backtest buying a fixed amount of a token every N days (dollar-cost averaging) since a past date: invested, units, average cost, current value, return, and comparison with investing everything at the start. Prices from …

    OptimismMarket data

    n/a/ request

    2026-10-05

  • https://api.vextorium.com/simulador-dca-pago

    Backtest buying a fixed amount of a token every N days (dollar-cost averaging) since a past date: invested, units, average cost, current value, return, and comparison with investing everything at the start. Prices from …

    PolygonMarket data

    n/a/ request

    2026-10-05

  • https://api.vextorium.com/sitemap-urls-pago

    List the URLs of a site's XML sitemap (found via robots.txt if needed, following sitemap indexes and .gz files) with last-modified dates, optionally filtered by text. Discover a site's pages for crawling or monitoring.

    OptimismDeveloper tools

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sitemap-urls-pago

    List the URLs of a site's XML sitemap (found via robots.txt if needed, following sitemap indexes and .gz files) with last-modified dates, optionally filtered by text. Discover a site's pages for crawling or monitoring.

    PolygonDeveloper tools

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/siwe-verificar-pago

    Verify a Sign-In with Ethereum (EIP-4361) login: parses domain, address, chain, nonce and dates, checks the signature and expiry, and optionally the expected domain and nonce. Authenticate users or agents by wallet.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/siwe-verificar-pago

    Verify a Sign-In with Ethereum (EIP-4361) login: parses domain, address, chain, nonce and dates, checks the signature and expiry, and optionally the expected domain and nonce. Authenticate users or agents by wallet.

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sol-actividad-pago

    Recent activity of a Solana address: latest transaction signatures with slot, time, success or failure and memo (up to 25).

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sol-actividad-pago

    Recent activity of a Solana address: latest transaction signatures with slot, time, success or failure and memo (up to 25).

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sol-alquiler-pago

    Minimum SOL for a Solana account of a given size to be rent-exempt (165 bytes = token account, 82 = mint, 0 = wallet), with common reference sizes.

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sol-alquiler-pago

    Minimum SOL for a Solana account of a given size to be rent-exempt (165 bytes = token account, 82 = mint, 0 = wallet), with common reference sizes.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sol-cuenta-pago

    Solana account inspector: whether it exists, type (wallet, token account, mint, program, program data), SOL balance, owner program and data size.

    PolygonOnchain data

    n/a/ request

    2026-10-07

  • https://api.vextorium.com/sol-cuenta-pago

    Solana account inspector: whether it exists, type (wallet, token account, mint, program, program data), SOL balance, owner program and data size.

    OptimismOnchain data

    n/a/ request

    2026-10-07

  • https://api.vextorium.com/sol-dominio-inverso-pago

    Primary (favourite) .sol domain of a Solana wallet, read on-chain and checked that the wallet still owns it.

    PolygonOnchain data

    n/a/ request

    2026-10-07

  • https://api.vextorium.com/sol-dominio-inverso-pago

    Primary (favourite) .sol domain of a Solana wallet, read on-chain and checked that the wallet still owns it.

    OptimismOnchain data

    n/a/ request

    2026-10-07

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

    Resolve a Solana Name Service .sol domain to its owner wallet, read directly on-chain (NFT-tokenized domains resolve to the NFT holder).

    PolygonOnchain data

    n/a/ request

    2026-10-07

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

    Resolve a Solana Name Service .sol domain to its owner wallet, read directly on-chain (NFT-tokenized domains resolve to the NFT holder).

    OptimismOnchain data

    n/a/ request

    2026-10-07

  • https://api.vextorium.com/sol-horarios-pago

    Sunrise, sunset, solar noon, day length and civil, nautical and astronomical twilight for coordinates and a date, in local time (zone detected from coordinates). Local astronomical calculation; handles polar night and m…

    PolygonDeveloper tools

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sol-horarios-pago

    Sunrise, sunset, solar noon, day length and civil, nautical and astronomical twilight for coordinates and a date, in local time (zone detected from coordinates). Local astronomical calculation; handles polar night and m…

    OptimismDeveloper tools

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sol-prioridad-pago

    Solana priority fee estimator: recent per-slot priority fees (min, median, p75, p90, max micro-lamports per CU) and total cost in SOL for a 200k-CU transaction.

    PolygonOther

    n/a/ request

    2026-10-07

  • https://api.vextorium.com/sol-prioridad-pago

    Solana priority fee estimator: recent per-slot priority fees (min, median, p75, p90, max micro-lamports per CU) and total cost in SOL for a 200k-CU transaction.

    OptimismOther

    n/a/ request

    2026-10-07

  • https://api.vextorium.com/sol-saldo-token-pago

    Balance of one SPL or Token-2022 token in a Solana wallet, with decimals and number of token accounts.

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sol-saldo-token-pago

    Balance of one SPL or Token-2022 token in a Solana wallet, with decimals and number of token accounts.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sol-saldos-multiwallet-pago

    SOL balance (and optionally one SPL token) of up to 50 Solana wallets in one call, with totals.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sol-saldos-multiwallet-pago

    SOL balance (and optionally one SPL token) of up to 50 Solana wallets in one call, with totals.

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sol-saldos-pago

    Solana wallet balances: SOL plus every SPL and Token-2022 token held (mint, amount, decimals), with USD value for USDC/USDT.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sol-saldos-pago

    Solana wallet balances: SOL plus every SPL and Token-2022 token held (mint, amount, decimals), with USD value for USDC/USDT.

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sol-slot-pago

    Current finalized Solana slot and block height, latest block time and a recent blockhash with its last valid height, ready to build transactions.

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sol-slot-pago

    Current finalized Solana slot and block height, latest block time and a recent blockhash with its last valid height, ready to build transactions.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sol-stake-cuenta-pago

    Solana stake account: SOL staked, delegated validator vote account, status (active, activating, deactivating, inactive), activation and deactivation epochs, stake and withdraw authorities and lockup.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/sol-stake-cuenta-pago

    Solana stake account: SOL staked, delegated validator vote account, status (active, activating, deactivating, inactive), activation and deactivation epochs, stake and withdraw authorities and lockup.

    OptimismOnchain 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.