Vextorium

EU VAT number format validation for all member states (plus Spanish check digit). Does not query VIES.

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

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.

Randomness for agents: flip coins, roll dice, draw numbers in a range, pick from a list or shuffle it. Cryptographically secure by default; with verifiable=true it is derived from the latest finalized Ethereum block hash and your seed, so anyone can verify the result.

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.

Market sentiment of any text (news, posts, tweets; any language) via local AI (Qwen3-4B): bullish / bearish / neutral, score -1 to 1, confidence, mentioned assets and a short reason.

AI text summarization and analysis (Qwen3-4B, 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.

ENS resolution on Ethereum: name to address (vitalik.eth -> 0x...) or address to primary name, with round-trip verification of reverse records.

Current price of a list of cryptocurrencies by ticker (BTC, ETH, SOL...) or chain:contract, in USD or any ECB currency (EUR, GBP, JPY...). The simplest way to get prices.

Official Spanish indicators from INE: CPI (annual and monthly change), EPA unemployment rate (total and under 25) and house prices (annual and quarterly change), with recent periods. Without an indicator it returns the latest value of all.

Repair broken JSON, typical of LLM output: strips ```json fences, comments and surrounding text, trailing commas, single quotes, unquoted keys, Python True/None and unclosed brackets. Returns the object and clean JSON and, if you pass a JSON Schema, whether it validates and why not.

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.

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).

Crypto Fear & Greed Index (0-100) with classification. Data source: Alternative.me (attribution included in the response).

API/URL health check: up or down, HTTP status, latency, and whether the endpoint is a valid x402 paid endpoint.

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.

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.

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.

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.

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.

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

Translate text to any language with local AI (Qwen3-4B), preserving formatting, names and numbers; detects the source language.

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).

Language detection with local AI: ISO 639-1 code, language name, confidence and any mixed languages.

Zero-shot text classification with local AI: pick the best label (or several) from your own list, with confidence and reason.

Policy interest rate of about 40 central banks (Fed, ECB, BoE, BoJ, Banxico, BCB...): latest rate and date as a ranking, or one country's monthly history with every hike and cut. Bank for International Settlements data.

Ranking of the DeFi protocols with the most TVL on a specific chain (Base, Solana, Arbitrum, BSC...), with category, 7-day change and share of the chain's TVL. Optional category filter.

TVL history of a blockchain: current value, all-time high and its date, distance from ATH, 30d and 1y change, plus a sampled series. Shows where a chain sits in the cycle. Live from DefiLlama.

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.

Monthly prices of about 70 commodities (Brent and WTI oil, natural gas, coal, gold, silver, copper, aluminium, wheat, maize, coffee, cocoa, sugar, fertilizers...) for the latest published month, with monthly and annual change. World Bank Pink Sheet.