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
Categories: Onchain data869Market data531Other305Developer tools275Security88Web data83Identity82Media59Commerce58AI models22Search17Agents6
First seen: 2026-10-05 · last seen 2026-10-06

What we observed

Payments unknownNo 402 answer2026-10-06Not claimed

See the readings

Endpoints

2,398 registered

https://api.vextorium.com/v1/pool-swaps
Recent swaps of a DEX pool (Uniswap v2/v3, Aerodrome, SushiSwap, PancakeSwap... on Base, Ethereum, Arbitrum, Optimism or Polygon) read on-chain: buys and sells with USD size, price, wallet and tx, net buy/sell flow, uni…
BaseOnchain data
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/portfolio-valuation
Value a crypto portfolio such as {"BTC": 0.1, "ETH": 2}: current value and weight of each holding and total; with a start date, its value then, return, annualized volatility and maximum drawdown. Prices from DefiLlama.
BaseMarket data
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/price-chart
Daily price series of a token for up to 365 days with change, high, low, maximum drawdown and annualized volatility. Accepts symbols (BTC, ETH, SOL...) or chain:contract ids. Aggregated by DefiLlama.
BaseMarket data
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/protocol-fees
Fees and revenue of ONE DeFi protocol in detail: 24h, 7d, 30d and all-time totals, with 1d/7d/1m trend. Fees are what users pay; revenue is what the protocol keeps. Live from DefiLlama.
BaseOnchain data
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/protocol-security
Security profile of a DeFi protocol by name (Aave, Curve, Pendle...): number of audits and their links, hacks suffered, TVL broken down by chain, category and market cap. More audits and zero hacks is a better signal. L…
BaseOnchain data
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/protocol-tvl-history
TVL history of a DeFi protocol (up to 5 years): series, 7/30/90/365-day change, all-time high and drawdown from it, and current TVL by chain. Live from DefiLlama.
BaseOnchain data
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/security-headers
Website security headers audit: HTTPS, HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy and cookie flags, with a score.
BaseDeveloper tools
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/solana-token-info
Solana SPL token profile and risk signals: supply, decimals, mint and freeze authorities (can the issuer mint more or freeze accounts?) and Token-2022 extensions.
BaseSecurity
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/solana-trending-tokens
Trending Solana tokens by organic score (real activity, not bots) over 5m/1h/6h/24h, or the newest tokens, with price, market cap, liquidity, holders, change, verification and risk flags (mint/freeze authority, holder c…
BaseMarket data
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/solana-wallet-value
Total USD value of a Solana wallet: SOL and every token priced with Jupiter, weight of each position, and count of tokens without price (likely spam or airdrops).
BaseOnchain data
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/spain-fuel-stations
Cheapest petrol stations in Spain for a fuel (gasoline 95/98, diesel, LPG, CNG, AdBlue, hydrogen) by town, province or near coordinates: price, brand, address, opening hours and distance, plus the area's average. Offici…
BaseOther
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/stablecoin-detail
Detail of one stablecoin: pegging mechanism (fiat-backed, crypto-backed, algorithmic), price, on-peg status, total circulating supply and its breakdown by chain. Live from DefiLlama.
BaseOnchain data
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/stablecoin-mints-burns
Stablecoin mints and burns over the last hours read from the contracts: USDC and USDT on Ethereum and USDC on Base, with totals, counts, largest operations and net flow. A signal of money entering or leaving crypto.
BaseOnchain data
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/stablecoin-yields
Best DeFi yields for stablecoins (USDC, USDT, DAI, USDe...): total, base and reward APY, TVL, protocol and chain, with minimum TVL and an option to exclude temporary reward incentives. Live from DefiLlama.
BaseOnchain data
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/technical-analysis
Technical analysis of any Hyperliquid perpetual (crypto, stocks, commodities): RSI, MACD, EMA 20/50/200, Bollinger bands, ATR, stochastic, annualized volatility, recent highs/lows, relative volume, trend and volatility …
BaseMarket data
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/token-approvals
Which contracts a wallet has allowed to move its ERC-20 tokens: checks the chain's main tokens (or the ones you pass) over recent blocks plus common spenders (Uniswap routers, Permit2), returning the live allowance and …
BaseOnchain data
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/token-holders
Largest holders of an ERC-20 token: address (named or labelled when known: exchanges, protocols...), amount and % of supply, total holder count and top-10 concentration.
BaseOnchain data
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/uniswap-position
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.
BaseOnchain data
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/url-health-check
API/URL health check: up or down, HTTP status, latency, and whether the endpoint is a valid x402 paid endpoint.
BaseDeveloper tools
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/us-federal-contracts
US federal government contracts by keyword (USAspending): recipient, amount, awarding agency, dates and description, largest first. For public-sector market research and competitor analysis.
BaseOther
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/virtuals-agent
Full detail of one AI agent token on Virtuals Protocol by name or symbol (AIXBT, Toshi...): market cap, 1h/6h/24h change, volume, holders and 24h holder growth, top-10 concentration, liquidity, category, chain, contract…
BaseMarket data
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/virtuals-agents
AI agent tokens on Virtuals Protocol (Base and Solana): search by name/symbol/category, or rank by market cap, 24h volume, top gainers/losers, newest launches or holders. Returns market cap, 24h change, volume, holders,…
BaseMarket data
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/wallet-balances
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.
BaseOnchain data
$0.005/ request
2026-10-06
https://api.vextorium.com/v1/wallet-portfolio
Every ERC-20 token held by an EVM address (not just the majors) with amount, price and USD value when quoted, token holder count and reputation (scam-flagged tokens hidden by default), plus native balance and total USD.
BaseOnchain data
$0.005/ request
2026-10-06
https://api.vextorium.com/valorar-cartera-pago
Value a crypto portfolio such as {"BTC": 0.1, "ETH": 2}: current value and weight of each holding and total; with a start date, its value then, return, annualized volatility and maximum drawdown. Prices from DefiLlama.
BaseMarket data
$0.005/ request
2026-10-06
https://api.vextorium.com/virtuals-agente-pago
Full detail of one AI agent token on Virtuals Protocol by name or symbol (AIXBT, Toshi...): market cap, 1h/6h/24h change, volume, holders and 24h holder growth, top-10 concentration, liquidity, category, chain, contract…
BaseMarket data
$0.005/ request
2026-10-06
https://api.vextorium.com/virtuals-agentes-pago
AI agent tokens on Virtuals Protocol (Base and Solana): search by name/symbol/category, or rank by market cap, 24h volume, top gainers/losers, newest launches or holders. Returns market cap, 24h change, volume, holders,…
BaseMarket data
$0.005/ request
2026-10-06
https://api.vextorium.com/aave-comparar-pago
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…
BaseOnchain data
$0.006/ request
2026-10-05
https://api.vextorium.com/aave-posicion-pago
Aave v3 position health for a wallet on five chains: collateral, debt, borrowing power, LTV, liquidation threshold and health factor with a risk label.
BaseOnchain data
$0.006/ request
2026-10-06
https://api.vextorium.com/actividad-tokenizada-pago
On-chain activity of tokenized stocks on Solana: current supply per issuer and recent issuance (mint when shares are deposited) and redemptions (burn), with transaction links.
BaseOnchain data
$0.006/ request
2026-10-06
https://api.vextorium.com/borme-actos-pago
Company acts registered in Spain's Commercial Registry (BORME section A) for a province and day: new companies with business purpose, address and share capital, dissolutions, insolvencies, capital increases, moves... Fi…
BaseOther
$0.006/ request
2026-10-05
https://api.vextorium.com/comprobacion-pre-operacion-pago
Before buying or selling a token: risk verdict (contract powers, honeypot pattern, age), main pool liquidity, estimated price impact for your USD amount, recommended slippage and a decision (ok, caution, avoid). Base, E…
BaseSecurity
$0.006/ request
2026-10-05
https://api.vextorium.com/defi-prestamos-pago
Where to borrow a token cheapest across DeFi lending markets (Aave, Compound, Morpho, Spark, Euler...): borrow APY, borrow incentives, net cost, supply APY, max LTV, utilization and available liquidity, by chain. Live f…
BaseOnchain data
$0.006/ request
2026-10-05
https://api.vextorium.com/empresa-dominio-pago
Company profile from its domain, without personal data: website title and description, social profiles, technologies used, email provider, domain age and registrar, SSL certificate and hosting country. Qualify B2B leads…
BaseIdentity
$0.006/ request
2026-10-05
https://api.vextorium.com/empresa-fundamentales-pago
US listed company fundamentals from public SEC filings (XBRL): last quarters and years of revenue, net income, diluted EPS, operating cash flow, assets, liabilities, equity, cash, dividends and shares outstanding.
BaseMarket data
$0.006/ request
2026-10-06
https://api.vextorium.com/gobernanza-dao-pago
Governance proposals of a DAO on Snapshot by its space (aavedao.eth, uniswapgovernance.eth, cow.eth...): title, state, close date, total votes and results per option. For agents that follow or vote on a protocol's decis…
BaseOther
$0.006/ request
2026-10-05
https://api.vextorium.com/insiders-empresa-pago
Latest trades by officers, directors and 10% holders of a US listed company (SEC Form 4): who (title), date, buy or sell, transaction type, shares, price, value and holdings after, plus totals of open-market buys and se…
BaseMarket data
$0.006/ request
2026-10-05
https://api.vextorium.com/pdf-tablas-pago
Extract the tables of a PDF (URL) as JSON rows with their page: financial reports, official lists, invoices... Works on text PDFs (not scans). Optional page range.
BaseMedia
$0.006/ request
2026-10-05
https://api.vextorium.com/pool-uniswap-pago
Uniswap v3 pool state on Base for a token pair: pool address per fee tier, spot price, tick, active liquidity and token reserves.
BaseOnchain data
$0.006/ request
2026-10-06
https://api.vextorium.com/preparacion-agentes-pago
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.
BaseDeveloper tools
$0.006/ request
2026-10-05
https://api.vextorium.com/protocolo-comparar-pago
Compare two DeFi protocols side by side: TVL, category, number of chains, 7d change, native token and audits, plus which one has more TVL. Live from DefiLlama.
BaseOnchain data
$0.006/ request
2026-10-05
https://api.vextorium.com/ranking-empresas-sec-pago
Rank US listed companies by a figure from their SEC filings (revenue, net income, assets, cash, long-term debt, R&D, dividends paid or buybacks) for a year (CY2025) or quarter (CY2026Q1), with ticker and exchange.
BaseMarket data
$0.006/ 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…
BaseSecurity
$0.006/ request
2026-10-05
https://api.vextorium.com/token-solana-pago
Profile of a Solana token by symbol, name or mint: price, market cap, holders, liquidity, whether it is verified, an organic-quality score, audit flags (top-holder concentration, mint authority) and socials. Ideal to te…
BaseMarket data
$0.006/ request
2026-10-05
https://api.vextorium.com/token-veredicto-pago
One-call risk verdict for an ERC-20 token on Base, Ethereum, Arbitrum, Optimism or Polygon: 0-100 score and level with every signal explained: admin powers (mint, pause, blacklist, fees), upgradeable proxy, renounced ow…
BaseSecurity
$0.006/ request
2026-10-05
https://api.vextorium.com/token-veredicto-solana-pago
One-call risk verdict for a Solana token: 0-100 score and level with every signal explained: active mint or freeze authority, top-holder concentration, Jupiter verification and organic score, holder count, liquidity, vo…
BaseSecurity
$0.006/ request
2026-10-05
https://api.vextorium.com/tokenizadas-rendimientos-pago
Best DeFi yield pools whose assets are verified tokenized stocks (xStocks/Backed and Ondo): APY, TVL, chain, protocol and pair. Filter by ticker (NVDA, TSLA, SPY...) or list all. Precise matching by on-chain tokenized s…
BaseOnchain data
$0.006/ 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…
BaseOnchain data
$0.006/ 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.
BaseOnchain data
$0.006/ 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.
BaseDeveloper tools
$0.006/ request
2026-10-05

Evidence

as of 2026-10-06

Answers HTTP 402

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)

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

Chain	Seller wallet	Endpoints	Answers 402	x402-style payments
Base	0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf	1,011	0 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)
Optimism	0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf	829	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-28	unknown. not measured on this chain yet
Polygon	0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf	555	0 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 2026-10-06

Highest

$0.02

per request, as registeredas of 2026-10-06

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.