Sato Hub
x402 merchant

api.vextorium.com

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

  • Endpoints3,010
  • Price per requestfrom $0.001
  • Outside payers · 7dn/a
  • Answer 4020 of 19

Overview

as of 2026-10-07
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 data1,038Market data603Other409Developer tools407Web data117Security112Identity111Media78Commerce66AI models36Search27Agents6
First seen
2026-10-05 · last seen 2026-10-07

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/ton-saldo-pago

    Balance of a TON address: native TON, account status, .ton domain and its jettons (USDT, NOT, DOGS...) with name, symbol, amount and scam flag. Live from a public TON node.

    PolygonSecurity

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/ton-transacciones-pago

    Latest transactions of a TON address: time, success, fee, TON received and sent, counterparties and message comment (memo). Confirm TON payments from Telegram wallets.

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/ton-transacciones-pago

    Latest transactions of a TON address: time, success, fee, TON received and sent, counterparties and message comment (memo). Confirm TON payments from Telegram wallets.

    PolygonOnchain data

    n/a/ request

    2026-10-06

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

    Transform text: URL slug, remove accents, ASCII, snake_case, camelCase, PascalCase, kebab-case, CONSTANT_CASE, Title, upper, lower, reverse, strip HTML, normalize whitespace and Unicode (NFC/NFKC). One or all at once.

    PolygonDeveloper tools

    n/a/ request

    2026-10-06

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

    Transform text: URL slug, remove accents, ASCII, snake_case, camelCase, PascalCase, kebab-case, CONSTANT_CASE, Title, upper, lower, reverse, strip HTML, normalize whitespace and Unicode (NFC/NFKC). One or all at once.

    OptimismDeveloper tools

    n/a/ request

    2026-10-06

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

    Split long text into overlapping chunks for RAG and embeddings, by characters, words or estimated tokens, keeping sentences or paragraphs whole, with each chunk's position and size.

    PolygonAI models

    n/a/ request

    2026-10-06

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

    Split long text into overlapping chunks for RAG and embeddings, by characters, words or estimated tokens, keeping sentences or paragraphs whole, with each chunk's position and size.

    OptimismAI models

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/tron-coste-envio-pago

    What it costs right now to send USDT (TRC-20) and TRX on Tron: energy and bandwidth prices, typical energy of a USDT transfer to an address with and without USDT, and the TRX burned if you have no resources.

    PolygonMarket data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/tron-coste-envio-pago

    What it costs right now to send USDT (TRC-20) and TRX on Tron: energy and bandwidth prices, typical energy of a USDT transfer to an address with and without USDT, and the TRX burned if you have no resources.

    OptimismMarket data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/tron-saldo-pago

    Balance of a Tron address: TRX (free and staked), TRC-20 tokens (USDT, USDC, USDD...) and the bandwidth and energy available to send without fees. Live from a public Tron node.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/tron-saldo-pago

    Balance of a Tron address: TRX (free and staked), TRC-20 tokens (USDT, USDC, USDD...) and the bandwidth and energy available to send without fees. Live from a public Tron node.

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/tron-token-info-pago

    Profile of a Tron TRC-20 token read from its contract: name, symbol, decimals and total supply.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/tron-token-info-pago

    Profile of a Tron TRC-20 token read from its contract: name, symbol, decimals and total supply.

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/tron-transaccion-pago

    Status of a Tron transaction by hash: success or failure, block, time, fee in TRX, energy and bandwidth used, and the TRX or TRC-20 (USDT...) transfers it contains. Confirm a USDT payment on Tron.

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/tron-transaccion-pago

    Status of a Tron transaction by hash: success or failure, block, time, fee in TRX, energy and bandwidth used, and the TRX or TRC-20 (USDT...) transfers it contains. Confirm a USDT payment on Tron.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/tron-transferencias-pago

    Latest TRC-20 token transfers (USDT, USDC...) of a Tron address: in or out, counterparty, amount, time and hash, with totals of stablecoins received and sent. Optional token filter.

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/tron-transferencias-pago

    Latest TRC-20 token transfers (USDT, USDC...) of a Tron address: in or out, counterparty, amount, time and hash, with totals of stablecoins received and sent. Optional token filter.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/turismo-ue-pago

    Monthly nights spent in tourist accommodation (hotels, apartments, campsites) in any European country with year-on-year change; without a country, a ranking for the latest month. Official Eurostat data.

    OptimismCommerce

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/turismo-ue-pago

    Monthly nights spent in tourist accommodation (hotels, apartments, campsites) in any European country with year-on-year change; without a country, a ranking for the latest month. Official Eurostat data.

    PolygonCommerce

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/tx-decodificada-pago

    An EVM transaction explained: method called and its decoded parameters with names (when the contract is verified), token transfers it triggered, value, fee, status, revert reason and names of the addresses involved.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/tx-decodificada-pago

    An EVM transaction explained: method called and its decoded parameters with names (when the contract is verified), token transfers it triggered, value, fee, status, revert reason and names of the addresses involved.

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/tx-transferencias-pago

    Decode what an EVM transaction moved: native value, every ERC-20 transfer (symbol, decimals, from, to, amount), ERC-721 and ERC-1155 NFT transfers, status, fee paid, contract created and method selector.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/tx-transferencias-pago

    Decode what an EVM transaction moved: native value, every ERC-20 transfer (symbol, decimals, from, to, amount), ERC-721 and ERC-1155 NFT transfers, status, fee paid, contract created and method selector.

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/uniswap-posicion-pago

    Uniswap v3 liquidity position by NFT id: pair, fee tier, price range, current price and in-range flag, liquidity, uncollected fees recorded and owner. Base, Ethereum, Arbitrum, Optimism and Polygon.

    PolygonOnchain data

    n/a/ request

    2026-10-05

  • https://api.vextorium.com/uniswap-posicion-pago

    Uniswap v3 liquidity position by NFT id: pair, fee tier, price range, current price and in-range flag, liquidity, uncollected fees recorded and owner. Base, Ethereum, Arbitrum, Optimism and Polygon.

    OptimismOnchain data

    n/a/ request

    2026-10-05

  • https://api.vextorium.com/url-maliciosa-pago

    Check whether a URL or domain is listed in abuse.ch URLhaus as a malware distribution site in the last 30 days: exact URL match and other malicious URLs on the same host, with threat type, online/offline status and date…

    OptimismSecurity

    n/a/ request

    2026-10-07

  • https://api.vextorium.com/url-maliciosa-pago

    Check whether a URL or domain is listed in abuse.ch URLhaus as a malware distribution site in the last 30 days: exact URL match and other malicious URLs on the same host, with threat type, online/offline status and date…

    PolygonSecurity

    n/a/ request

    2026-10-07

  • https://api.vextorium.com/utxo-saldo-pago

    Balance of a Litecoin, Dogecoin or Dash address (detected from the prefix if not given): confirmed and pending balance, total received and sent, transaction count and USD value.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/utxo-saldo-pago

    Balance of a Litecoin, Dogecoin or Dash address (detected from the prefix if not given): confirmed and pending balance, total received and sent, transaction count and USD value.

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/v1/aave-apy-history

    Daily history of the supply APY (base and rewards) and TVL of an Aave v3 market (asset and chain), with average, max and min over the period. DefiLlama data.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/v1/aave-apy-history

    Daily history of the supply APY (base and rewards) and TVL of an Aave v3 market (asset and chain), with average, max and min over the period. DefiLlama data.

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/v1/aave-compare-chains

    Compare Aave v3 across all supported chains (Base, Ethereum, Arbitrum, Optimism, Polygon) for one token: where you earn the most supplying it, or pay the least borrowing it. Returns the best chain and the deposit/borrow…

    PolygonOnchain data

    n/a/ request

    2026-10-05

  • https://api.vextorium.com/v1/aave-compare-chains

    Compare Aave v3 across all supported chains (Base, Ethereum, Arbitrum, Optimism, Polygon) for one token: where you earn the most supplying it, or pay the least borrowing it. Returns the best chain and the deposit/borrow…

    OptimismOnchain data

    n/a/ request

    2026-10-05

  • https://api.vextorium.com/v1/aave-markets

    Every Aave market on a chain: per asset supply and borrow APY (with incentives), deposited and borrowed USD, utilization, max LTV, borrowable flag and available liquidity, plus totals. DefiLlama data.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/v1/aave-markets

    Every Aave market on a chain: per asset supply and borrow APY (with incentives), deposited and borrowed USD, utilization, max LTV, borrowable flag and available liquidity, plus totals. DefiLlama data.

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/v1/aave-position

    Aave v3 position health for a wallet on five chains: collateral, debt, borrowing power, LTV, liquidation threshold and health factor with a risk label.

    PolygonOnchain data

    n/a/ request

    2026-10-05

  • https://api.vextorium.com/v1/aave-position

    Aave v3 position health for a wallet on five chains: collateral, debt, borrowing power, LTV, liquidation threshold and health factor with a risk label.

    OptimismOnchain data

    n/a/ request

    2026-10-05

  • https://api.vextorium.com/v1/aave-rates

    Aave v3 live lending and borrowing APY for the main assets (WETH, USDC, USDT, DAI, cbBTC/WBTC) on a chain.

    PolygonOnchain data

    n/a/ request

    2026-10-05

  • https://api.vextorium.com/v1/aave-rates

    Aave v3 live lending and borrowing APY for the main assets (WETH, USDC, USDT, DAI, cbBTC/WBTC) on a chain.

    OptimismOnchain data

    n/a/ request

    2026-10-05

  • https://api.vextorium.com/v1/abi-decode

    Decode EVM calldata (transaction input) with the function signature or, if omitted, by looking up the selector on 4byte; or decode return data with its output types (e.g. uint256,address).

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/v1/abi-decode

    Decode EVM calldata (transaction input) with the function signature or, if omitted, by looking up the selector on 4byte; or decode return data with its output types (e.g. uint256,address).

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/v1/abi-encode

    Encode a contract function call (calldata) from its signature and arguments, e.g. transfer(address,uint256) with [to, amount]: selector and hex data ready to sign or simulate.

    OptimismDeveloper tools

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/v1/abi-encode

    Encode a contract function call (calldata) from its signature and arguments, e.g. transfer(address,uint256) with [to, amount]: selector and hex data ready to sign or simulate.

    PolygonDeveloper tools

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/v1/address-inspect

    Address inspector for EVM chains: wallet (EOA), EIP-7702 delegated wallet or contract; bytecode size, ERC-20/721/1155 support, proxy implementation and beacon, nonce and native balance.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/v1/address-inspect

    Address inspector for EVM chains: wallet (EOA), EIP-7702 delegated wallet or contract; bytecode size, ERC-20/721/1155 support, proxy implementation and beacon, nonce and native balance.

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/v1/address-type-batch

    Classify up to 50 EVM addresses at once: regular wallet (EOA), EIP-7702 delegated wallet or contract, with code size. Filter airdrop lists, spot contracts or bots. 12 chains.

    OptimismOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/v1/address-type-batch

    Classify up to 50 EVM addresses at once: regular wallet (EOA), EIP-7702 delegated wallet or contract, with code size. Filter airdrop lists, spot contracts or bots. 12 chains.

    PolygonOnchain data

    n/a/ request

    2026-10-06

  • https://api.vextorium.com/v1/agent-readiness

    How ready a website is for AI agents: llms.txt, AI-crawler rules in robots.txt, sitemap, x402 payment discovery, OpenAPI, MCP manifest, security.txt, with a 0-100 score and concrete recommendations.

    PolygonDeveloper tools

    n/a/ request

    2026-10-05

  • https://api.vextorium.com/v1/agent-readiness

    How ready a website is for AI agents: llms.txt, AI-crawler rules in robots.txt, sitemap, x402 payment discovery, OpenAPI, MCP manifest, security.txt, with a 0-100 score and concrete recommendations.

    OptimismDeveloper tools

    n/a/ request

    2026-10-05

  • https://api.vextorium.com/v1/airdrop-candidates

    DeFi protocols with significant TVL and no token yet (potential future airdrops): category, suggested activity and difficulty, chains, TVL and links. Signals only, not confirmed airdrops. DefiLlama data.

    PolygonOnchain data

    n/a/ request

    2026-10-05

Evidence

as of 2026-10-07

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 19

0 of 19 probed endpoints answered HTTP 402 with a parseable payment payload

checked 2026-10-07

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 2026-10-07

By chain

ChainSeller walletEndpointsAnswers 402x402-style payments
Base0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf1,0140 of 7 probed endpoints answered HTTP 402 with a parseable payment payload
2026-10-07
unknown. the 7-day payments read on Base did not complete (ranges over 10000 blocks are not supported on free plan)
Optimism0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf1,0070 of 6 probed endpoints answered HTTP 402 with a parseable payment payload
2026-10-07
unknown. not measured on this chain yet
Polygon0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf9890 of 6 probed endpoints answered HTTP 402 with a parseable payment payload
2026-10-07
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 2026-10-07. Appearing here is not an endorsement. Check an endpoint with the doctor.