On-chain data, tokenized stocks, DeFi, FX, validation and AI text tools. No accounts, no API keys: pay a few tenths of a cent in USDC with x402 and get JSON back. Failed requests are never charged.
# 1. Call any endpoint POST /accion-tokenizada-pago {"ticker":"NVDA"} ← 402 Payment Required $0.004 USDC · Solana | Base # 2. Your client pays and retries POST /accion-tokenizada-pago + payment signature ← 200 OK { "ticker": "NVDA", "tokens_oficiales": [ { "emisor": "xStocks (Backed)", "simbolo": "NVDAx" }, { "emisor": "Ondo Global Markets", "simbolo": "NVDAon" } ] }
Built for agents that need facts, not dashboards.
No accounts, keys or subscriptions. Any x402 wallet can call any endpoint right away.
From $0.003 to $0.02 per request, in USDC on Solana or Base.
Bad input, data not found or a source down: you get an error and the payment is never settled.
Read straight from blockchains, oracles, the ECB and public SEC filings. AI runs on our own local model.
Pick a sector, or search all 58 services below.
Wallets, tokens, transactions, activity and priority fees on Solana.
▲Verified xStocks/Ondo registry, anti-scam checks, SEC company data and world market hours.
◈Balances, token profiles and risk, approvals, NFTs, ENS, transactions and gas on Base, Ethereum, Arbitrum, Optimism and Polygon.
◆Uniswap quotes and pools, Aave positions and rates, liquidations, Chainlink prices and impermanent loss.
€ECB exchange rates (live and historical), IBAN, Spanish NIF/CIF, EU VAT, BIC and Spanish business days.
✦Summaries, translation, data extraction, classification, sentiment and language detection with a local model.
⌘Uptime and x402 checks, domain intelligence, security headers, email validation and EVM utilities.
Standard x402 v2 flow; works with any x402 client or wallet.
Send a POST with a JSON body to any endpoint.
You get HTTP 402 with the exact price. Your client pays in USDC on Solana or Base and retries.
JSON response. If the request fails (bad input, not found, source down) you are not charged.
Try it: npx awal x402 pay https://api.vextorium.com/gas-red-pago -X POST -d '{"red":"base"}' · Machine-readable list: /catalog.json
Wallets, tokens, transactions, activity and priority fees on Solana.
Solana wallet balances: SOL plus every SPL and Token-2022 token held (mint, amount, decimals), with USD value for USDC/USDT.
POST /sol-saldos-pago
curl -X POST https://api.vextorium.com/sol-saldos-pago \
-H "Content-Type: application/json" \
-d '{"direccion":"HcjfmZLgWRZzwj4deEiS7pewc4KBYSw39mW5nTyt3pz2"}'Solana transaction status by signature: confirmed / failed / processing, slot, time, fee in SOL, signers, programs invoked and token balance changes.
POST /sol-tx-pago
curl -X POST https://api.vextorium.com/sol-tx-pago \
-H "Content-Type: application/json" \
-d '{"firma":"2wtvDPkT2f1DVy3E7ZCJtARmdmbCF7uiETvwQY2uGLo75z1hBUQGfYjSY7w8U4zKKTYU64E1BN8a8rThudDA1sDx"}'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.
POST /sol-token-pago
curl -X POST https://api.vextorium.com/sol-token-pago \
-H "Content-Type: application/json" \
-d '{"mint":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"}'Solana account inspector: whether it exists, type (wallet, token account, mint, program, program data), SOL balance, owner program and data size.
POST /sol-cuenta-pago
curl -X POST https://api.vextorium.com/sol-cuenta-pago \
-H "Content-Type: application/json" \
-d '{"direccion":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"}'Recent activity of a Solana address: latest transaction signatures with slot, time, success or failure and memo (up to 25).
POST /sol-actividad-pago
curl -X POST https://api.vextorium.com/sol-actividad-pago \
-H "Content-Type: application/json" \
-d '{"direccion":"HcjfmZLgWRZzwj4deEiS7pewc4KBYSw39mW5nTyt3pz2","limite":5}'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.
POST /sol-prioridad-pago
curl -X POST https://api.vextorium.com/sol-prioridad-pago \
-H "Content-Type: application/json" \
-d '{}'Verified xStocks/Ondo registry, anti-scam checks, SEC company data and world market hours.
Official tokenized versions of a US stock or ETF on Solana (xStocks by Backed and Ondo Global Markets): verified mint addresses, on-chain supply and issuer authority check. Accepts NVDA, NVDAx or NVDAon.
POST /accion-tokenizada-pago
curl -X POST https://api.vextorium.com/accion-tokenizada-pago \
-H "Content-Type: application/json" \
-d '{"ticker":"NVDA"}'Anti-scam check for tokenized stocks on Solana: tells whether a token mint was issued by an official issuer (xStocks/Backed, Ondo) via its mint authority, or is a POSSIBLE IMITATION posing as one.
POST /verificar-tokenizada-pago
curl -X POST https://api.vextorium.com/verificar-tokenizada-pago \
-H "Content-Type: application/json" \
-d '{"mint":"Xsc9qvGR1efVDFGLrVsmkzv3qi45LTBjeUKSPmx9qEh"}'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.
POST /actividad-tokenizada-pago
curl -X POST https://api.vextorium.com/actividad-tokenizada-pago \
-H "Content-Type: application/json" \
-d '{"ticker":"TSLA","limite":10}'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.
POST /empresa-fundamentales-pago
curl -X POST https://api.vextorium.com/empresa-fundamentales-pago \
-H "Content-Type: application/json" \
-d '{"ticker":"NVDA"}'Latest regulatory filings of a US listed company (8-K material events, 10-Q, 10-K, insider Form 4, 13D/G...) with date, 8-K items and direct document link. Optional filter by form type.
POST /empresa-presentaciones-pago
curl -X POST https://api.vextorium.com/empresa-presentaciones-pago \
-H "Content-Type: application/json" \
-d '{"ticker":"AAPL","tipo":"8-K","limite":5}'AI summary of a company's latest filing (default the latest 8-K material event, including its press-release exhibit): headline, key points, literal key figures and tone, in the language you choose. Local AI (Qwen2.5-7B).
POST /resumen-presentacion-pago
curl -X POST https://api.vextorium.com/resumen-presentacion-pago \
-H "Content-Type: application/json" \
-d '{"ticker":"NVDA","tipo":"8-K","idioma":"es"}'US stock market clock (NYSE/Nasdaq): open, closed, pre-market or after-hours now (or at a given time), holiday reason, early closes, next open/close and upcoming holidays. Key for 24/7 tokenized stocks.
POST /horario-eeuu-pago
curl -X POST https://api.vextorium.com/horario-eeuu-pago \
-H "Content-Type: application/json" \
-d '{}'World stock exchanges clock: status (open, closed, lunch break), local time, today's session and next open for NYSE, Toronto, London, Euronext, Xetra, Madrid, Zurich, Tokyo, Hong Kong, Shanghai, India and Sydney.
POST /horario-bolsas-pago
curl -X POST https://api.vextorium.com/horario-bolsas-pago \
-H "Content-Type: application/json" \
-d '{"bolsas":["NYSE","LSE","XETRA","BME","TSE","HKEX"]}'Balances, token profiles and risk, approvals, NFTs, ENS, transactions and gas on Base, Ethereum, Arbitrum, Optimism and Polygon.
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.
POST /saldos-wallet-pago
curl -X POST https://api.vextorium.com/saldos-wallet-pago \
-H "Content-Type: application/json" \
-d '{"direccion":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","red":"base"}'Wallet analysis read directly from the blockchain on Base, Ethereum, Arbitrum, Optimism or Polygon (account type incl. smart wallet / EIP-7702, sent transaction count, ENS name, native and USDC/stablecoin balances with USD value); also Bitcoin and Solana balances.
POST /analizar-wallet-pago
curl -X POST https://api.vextorium.com/analizar-wallet-pago \
-H "Content-Type: application/json" \
-d '{"direccion":"0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf","red":"base"}'One address across five EVM chains (Base, Ethereum, Arbitrum, Optimism, Polygon): native coin and USDC balance per chain and total USD value.
POST /saldo-multired-pago
curl -X POST https://api.vextorium.com/saldo-multired-pago \
-H "Content-Type: application/json" \
-d '{"direccion":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"}'ERC-20 token profile read directly from the contract on Base or Ethereum: name, symbol, decimals, total supply, bytecode size and whether it is an upgradeable EIP-1967 proxy (with implementation address).
POST /info-token-pago
curl -X POST https://api.vextorium.com/info-token-pago \
-H "Content-Type: application/json" \
-d '{"contrato":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","red":"base"}'ERC-20 admin-control check: detects owner privileges, upgradeable proxy, mint, pause, blacklist and fee-setting functions in the contract code. Measures issuer control, not a scam verdict.
POST /token-riesgo-pago
curl -X POST https://api.vextorium.com/token-riesgo-pago \
-H "Content-Type: application/json" \
-d '{"contrato":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","red":"base"}'ERC-20 allowance lookup: how much a spender can move from an owner's balance, flagging unlimited approvals.
POST /permiso-token-pago
curl -X POST https://api.vextorium.com/permiso-token-pago \
-H "Content-Type: application/json" \
-d '{"token":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","propietario":"0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf","gastador":"0x3d4e44Eb1374240CE5F1B871ab261CD16335B76a","red":"base"}'NFT lookup (ERC-721 / ERC-1155): collection name, owner, token URI and metadata (name, description, image, attributes).
POST /nft-info-pago
curl -X POST https://api.vextorium.com/nft-info-pago \
-H "Content-Type: application/json" \
-d '{"contrato":"0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D","token_id":1,"red":"ethereum"}'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.
POST /contrato-info-pago
curl -X POST https://api.vextorium.com/contrato-info-pago \
-H "Content-Type: application/json" \
-d '{"direccion":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","red":"base"}'ENS resolution on Ethereum: name to address (vitalik.eth -> 0x...) or address to primary name, with round-trip verification of reverse records.
POST /ens-pago
curl -X POST https://api.vextorium.com/ens-pago \
-H "Content-Type: application/json" \
-d '{"consulta":"vitalik.eth"}'ENS profile: resolved address plus public text records (avatar, description, url, twitter, github, telegram, discord, email).
POST /ens-perfil-pago
curl -X POST https://api.vextorium.com/ens-perfil-pago \
-H "Content-Type: application/json" \
-d '{"nombre":"vitalik.eth"}'Transaction status by hash on Base or Ethereum: pending / confirmed / failed, block, confirmations, gas used, fee paid, created contract and explorer link.
POST /estado-tx-pago
curl -X POST https://api.vextorium.com/estado-tx-pago \
-H "Content-Type: application/json" \
-d '{"hash":"0x6b3a0f6c5d9b0a0e3c2f1e4d5c6b7a8f9e0d1c2b3a4f5e6d7c8b9a0f1e2d3c4b","red":"base"}'Latest block on an EVM chain: number, hash, time, age in seconds, transaction count, gas used % and base fee.
POST /bloque-info-pago
curl -X POST https://api.vextorium.com/bloque-info-pago \
-H "Content-Type: application/json" \
-d '{"red":"base"}'Live gas price on Base or Ethereum (gwei, base fee, priority fee) plus estimated USD cost of an ETH transfer, an ERC-20 transfer and a DEX swap, including Base L1 data fee. Priced with the Chainlink ETH/USD oracle.
POST /gas-red-pago
curl -X POST https://api.vextorium.com/gas-red-pago \
-H "Content-Type: application/json" \
-d '{"red":"base"}'Uniswap quotes and pools, Aave positions and rates, liquidations, Chainlink prices and impermanent loss.
On-chain swap quote on Base from Uniswap v3 QuoterV2 across all fee tiers (0.01%, 0.05%, 0.3%, 1%): output amount, unit price, best pool and gas estimate. Accepts symbols (WETH/ETH, USDC, USDT, DAI, cbBTC) or token addresses. Read-only, no swap executed.
POST /cotizacion-dex-pago
curl -X POST https://api.vextorium.com/cotizacion-dex-pago \
-H "Content-Type: application/json" \
-d '{"token_entrada":"WETH","token_salida":"USDC","cantidad":1}'Uniswap v3 pool state on Base for a token pair: pool address per fee tier, spot price, tick, active liquidity and token reserves.
POST /pool-uniswap-pago
curl -X POST https://api.vextorium.com/pool-uniswap-pago \
-H "Content-Type: application/json" \
-d '{"token_a":"WETH","token_b":"USDC","comision_pct":0.05}'Aave v3 position health for a wallet on five chains: collateral, debt, borrowing power, LTV, liquidation threshold and health factor with a risk label.
POST /aave-posicion-pago
curl -X POST https://api.vextorium.com/aave-posicion-pago \
-H "Content-Type: application/json" \
-d '{"direccion":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"}'Aave v3 live lending and borrowing APY for the main assets (WETH, USDC, USDT, DAI, cbBTC/WBTC) on a chain.
POST /aave-tipos-pago
curl -X POST https://api.vextorium.com/aave-tipos-pago \
-H "Content-Type: application/json" \
-d '{"red":"base"}'DeFi liquidations read on-chain from Aave v3 on Base, Ethereum, Arbitrum, Optimism and Polygon: total USD liquidated, event count, breakdown by network, collateral and debt asset, and latest events with explorer links. Window 1-24h, optional asset filter.
POST /liquidaciones-pago
curl -X POST https://api.vextorium.com/liquidaciones-pago \
-H "Content-Type: application/json" \
-d '{"red":"base","horas":24}'Tamper-resistant price from Chainlink Data Feeds on Base (ETH/USD, BTC/USD, USDC/USD, or any Chainlink aggregator address), with update time and staleness in seconds.
POST /precio-oraculo-pago
curl -X POST https://api.vextorium.com/precio-oraculo-pago \
-H "Content-Type: application/json" \
-d '{"par":"ETH/USD"}'Crypto price in USD and EUR from on-chain sources only: Chainlink oracles (BTC, ETH, USDC) or Uniswap v3 quotes on Base (USDT, DAI or any Base token address); EUR via ECB rate.
POST /precio-cripto-pago
curl -X POST https://api.vextorium.com/precio-cripto-pago \
-H "Content-Type: application/json" \
-d '{"moneda":"bitcoin"}'Crypto price in any ECB currency (EUR, GBP, JPY, CHF...): on-chain USD price (Chainlink or Uniswap v3) converted with ECB reference rates.
POST /precio-divisa-pago
curl -X POST https://api.vextorium.com/precio-divisa-pago \
-H "Content-Type: application/json" \
-d '{"moneda":"bitcoin","divisa":"EUR"}'Impermanent loss calculator for Uniswap v2 (full range) and v3/v4 concentrated ranges: IL vs holding, out-of-range flag and final token mix.
POST /calculadora-il-pago
curl -X POST https://api.vextorium.com/calculadora-il-pago \
-H "Content-Type: application/json" \
-d '{"precio_inicial":2000,"precio_final":2600,"rango_min":1800,"rango_max":2400}'Crypto Fear & Greed Index (0-100) with classification. Data source: Alternative.me (attribution included in the response).
POST /fear-greed-pago
curl -X POST https://api.vextorium.com/fear-greed-pago \
-H "Content-Type: application/json" \
-d '{}'ECB exchange rates (live and historical), IBAN, Spanish NIF/CIF, EU VAT, BIC and Spanish business days.
Official European Central Bank euro reference exchange rates (about 30 currencies) and currency conversion between any two of them, with reference date.
POST /divisas-bce-pago
curl -X POST https://api.vextorium.com/divisas-bce-pago \
-H "Content-Type: application/json" \
-d '{"de":"EUR","a":"USD","importe":100}'Historical ECB euro reference exchange rate for any date since 1999 and conversion between any two published currencies.
POST /bce-historico-pago
curl -X POST https://api.vextorium.com/bce-historico-pago \
-H "Content-Type: application/json" \
-d '{"fecha":"2024-06-14","de":"EUR","a":"USD","importe":100}'IBAN validation (ISO 13616 mod-97 and per-country length, SEPA membership; for Spain also the national CCC check digits and bank name). Computed locally, IBAN is not stored.
POST /validar-iban-pago
curl -X POST https://api.vextorium.com/validar-iban-pago \
-H "Content-Type: application/json" \
-d '{"iban":"ES9121000418450200051332"}'Spanish tax ID validation (DNI/NIF, NIE and company CIF) with check-digit verification. Computed locally; the ID is not stored.
POST /validar-nif-pago
curl -X POST https://api.vextorium.com/validar-nif-pago \
-H "Content-Type: application/json" \
-d '{"valor":"B12345674"}'EU VAT number format validation for all member states (plus Spanish check digit). Does not query VIES.
POST /validar-iva-pago
curl -X POST https://api.vextorium.com/validar-iva-pago \
-H "Content-Type: application/json" \
-d '{"numero":"ESB12345674"}'BIC/SWIFT code validation and parsing: bank, country, location and branch codes, test-code flag.
POST /validar-bic-pago
curl -X POST https://api.vextorium.com/validar-bic-pago \
-H "Content-Type: application/json" \
-d '{"bic":"CAIXESBBXXX"}'Spanish business-day calculator: count business days between dates or add N business days, using Spain's national public holidays.
POST /dias-habiles-pago
curl -X POST https://api.vextorium.com/dias-habiles-pago \
-H "Content-Type: application/json" \
-d '{"desde":"2026-04-01","hasta":"2026-04-30"}'Summaries, translation, data extraction, classification, sentiment and language detection with a local model.
AI text summarization and analysis (Qwen2.5-7B, local). Send any text in the 'texto' field (you may start it with an instruction, e.g. 'Summarize in 3 bullets: ...') and get a concise summary or analysis in the same language.
POST /resumir-pago
curl -X POST https://api.vextorium.com/resumir-pago \
-H "Content-Type: application/json" \
-d '{"texto":"Texto de ejemplo a resumir o analizar"}'Read a web page from its URL and summarize it with local AI (Qwen2.5-7B).
POST /resumir-url-pago
curl -X POST https://api.vextorium.com/resumir-url-pago \
-H "Content-Type: application/json" \
-d '{"url":"https://ejemplo.com/articulo"}'Structured data extraction with local AI: give a text and a list of field names, get a JSON object with those fields (null when absent).
POST /extraer-datos-pago
curl -X POST https://api.vextorium.com/extraer-datos-pago \
-H "Content-Type: application/json" \
-d '{"texto":"Factura 2026-117 de Acme SL por 1.250,50 EUR, fecha 12/09/2026, vence en 30 días.","campos":["numero_factura","empresa","importe","moneda","fecha"]}'Zero-shot text classification with local AI: pick the best label (or several) from your own list, with confidence and reason.
POST /clasificar-pago
curl -X POST https://api.vextorium.com/clasificar-pago \
-H "Content-Type: application/json" \
-d '{"texto":"My order arrived broken and nobody answers my emails","etiquetas":["reclamacion","consulta","felicitacion","spam"]}'Market sentiment of any text (news, posts, tweets; any language) via local AI (Qwen2.5-7B): bullish / bearish / neutral, score -1 to 1, confidence, mentioned assets and a short reason.
POST /sentimiento-pago
curl -X POST https://api.vextorium.com/sentimiento-pago \
-H "Content-Type: application/json" \
-d '{"texto":"ETH breaks resistance as ETF inflows hit a monthly high"}'Translate text to any language with local AI (Qwen2.5-7B), preserving formatting, names and numbers; detects the source language.
POST /traducir-pago
curl -X POST https://api.vextorium.com/traducir-pago \
-H "Content-Type: application/json" \
-d '{"texto":"Hola, ¿cómo estás? El envío llegará el lunes.","idioma_destino":"en"}'Language detection with local AI: ISO 639-1 code, language name, confidence and any mixed languages.
POST /detectar-idioma-pago
curl -X POST https://api.vextorium.com/detectar-idioma-pago \
-H "Content-Type: application/json" \
-d '{"texto":"Bon dia, com estàs? Avui fa molt de sol."}'Extract the text of a PDF from its URL.
POST /extraer-pdf-pago
curl -X POST https://api.vextorium.com/extraer-pdf-pago \
-H "Content-Type: application/json" \
-d '{"url":"https://ejemplo.com/documento.pdf"}'CSV cleaning and normalization to JSON: column names, types, duplicates and empty values. Data is processed in memory and not stored.
POST /limpiar-datos-pago
curl -X POST https://api.vextorium.com/limpiar-datos-pago \
-H "Content-Type: application/json" \
-d '{"input":"Nombre,Edad\nAna,25\nLuis,","from":"csv","to":"json"}'Uptime and x402 checks, domain intelligence, security headers, email validation and EVM utilities.
API/URL health check: up or down, HTTP status, latency, and whether the endpoint is a valid x402 paid endpoint.
POST /comprobar-salud-pago
curl -X POST https://api.vextorium.com/comprobar-salud-pago \
-H "Content-Type: application/json" \
-d '{"url":"https://ejemplo.com/api","metodo":"GET"}'Domain intelligence: WHOIS (registrar, creation and expiry dates), DNS records and SSL certificate details.
POST /dominio-pago
curl -X POST https://api.vextorium.com/dominio-pago \
-H "Content-Type: application/json" \
-d '{"dominio":"ejemplo.com"}'Website security headers audit: HTTPS, HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy and cookie flags, with a score.
POST /cabeceras-seguridad-pago
curl -X POST https://api.vextorium.com/cabeceras-seguridad-pago \
-H "Content-Type: application/json" \
-d '{"url":"https://example.com"}'Email validation: syntax, domain MX records and disposable-domain flag. Sends no email; the address is not stored.
POST /validar-email-pago
curl -X POST https://api.vextorium.com/validar-email-pago \
-H "Content-Type: application/json" \
-d '{"email":"[email protected]"}'EVM developer utilities: keccak256 hash, function selector from a signature, EIP-55 checksum address and wei/gwei/ether conversion.
POST /evm-utilidades-pago
curl -X POST https://api.vextorium.com/evm-utilidades-pago \
-H "Content-Type: application/json" \
-d '{"operacion":"selector","valor":"transfer(address,uint256)"}'No services match your search.
An open payment protocol built on HTTP 402. The server answers an unpaid request with its price; your client pays in USDC and retries. No sign-up, no API keys, no subscriptions.
Any x402 v2 client. Examples: Coinbase's awal CLI, the x402 SDKs (TypeScript, Python, Go) or the Solana pay CLI. You pay in USDC on Solana or Base.
You are not charged. Invalid input, data not found or an upstream source being down return 4xx/5xx and the payment is never settled.
No. Inputs (texts, addresses, IBANs, emails...) are processed in memory and not stored; AI runs on our own local model. Only payment records are kept. See the privacy policy.
No. Everything is information from public sources or our own calculations. Nothing here is a recommendation to buy or sell.
Real-time exchange prices are licensed by the exchanges. We provide what can be redistributed legally: on-chain token data, public SEC filings and market hours.