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Vextorium — The x402 Payment Engine
1,024 resources on api.vextorium.com · browse everything
Pay-per-call data APIs for AI agents: on-chain data (Base, Ethereum, Solana payments), DeFi, FX and AI text tools. USDC via x402. the operator’s own description
Most recently seen
- Vextorium
Hyperliquid spot pairs: price, 24h change, 24h volume and market cap (circulating supply x price). Search a token or rank by volume, market cap, gainers or lose
- Vextorium
OHLCV candles of a Hyperliquid perpetual (1m, 5m, 15m, 1h, 4h, 1d, 1w; up to 500) with period change, high, low and annualized volatility. Prices from Hyperliqu
- Vextorium
Hourly funding history of a Hyperliquid perpetual over 1-30 days: average, max, min, % of positive hours, annualized rate and a daily series. For carry and basi
- Vextorium
Order book of a Hyperliquid perpetual: best bid/ask, spread in basis points, mid price, top levels and USD liquidity within ±0.5%, ±1% and ±2% of mid. Use it to
- Vextorium
Open perpetual positions of any wallet on Hyperliquid: side, size, entry, unrealized PnL, ROE, leverage, liquidation price, margin and funding paid, plus accoun
- Vextorium
Split long text into overlapping chunks for RAG and embeddings, by characters, words or estimated tokens, keeping sentences or paragraphs whole, with each chunk
- Vextorium
Sort Semantic Versioning 2.0 versions (pre-releases included), give highest and lowest, the bump type between two, and which satisfy an npm-style range (^1.2.0,
- Vextorium
Validate JSON (with line and column of the error), pretty-print or minify it, describe its structure (depth, keys, value types) and extract a value by path such
- Vextorium
Compare two texts by lines or words: similarity %, added and removed items, list of changes with positions, and a unified diff. For contract versions, prompts,
- Vextorium
Convert a color between HEX, RGB, HSL, HSV and CMYK and, given a background, compute the WCAG 2.x contrast ratio with AA/AAA pass flags; without background, sug
- Vextorium
Convert units of length, mass, volume, area, speed, temperature, data (KB vs KiB), energy, pressure, time and power, metric and imperial, with exact factors.
- Vextorium
Date facts (weekday, ISO week, quarter, day of year, leap year), exact difference between two dates in years, months, days, weeks and Mon-Fri working days, and
- Vextorium
Standard and reduced VAT rates of any EU member state, and an invoice breakdown (net, VAT, gross) from a net or VAT-inclusive amount, flagging rates that are no
- Vextorium
Write a number or money amount in words, in Spanish or English (EUR, USD, GBP, MXN), with correct Spanish apocope (veintiún, un millón de euros). For invoices,
- Vextorium
Detect and validate a crypto address before sending funds: EVM (EIP-55 checksum), Solana, Bitcoin (legacy, P2SH, SegWit, Taproot), Litecoin, Dogecoin, Tron and
- Vextorium
Text statistics without AI: characters, words, sentences, paragraphs, unique words, reading and speaking time, readability (Flesch / Flesch-Kincaid for English,
- Vextorium
Perpetual futures calculator (isolated margin): liquidation price and distance, notional and size, PnL at stop-loss and take-profit, reward/risk ratio, and posi
- Vextorium
IPv4/IPv6 subnet calculator: network, mask, wildcard, broadcast, first/last host, usable hosts, address type (private, public, loopback...) and whether a given
- Vextorium
Validate a 5-field cron expression (ranges, steps, names, @daily aliases), explain it in plain English and list its next run times in any time zone, DST-aware.
- Vextorium
Convert APR to APY or APY to APR for any compounding frequency (continuous, daily, hourly, per block...) and optionally project the final value and gain of a de
- Vextorium
Loan or mortgage with French amortization (fixed installment): monthly payment, total paid, total interest, approximate APR (TAE) including fees, and a yearly o
- Vextorium
Convert a date and time (or now) from one IANA time zone to up to 25 others: local time, UTC offset, abbreviation, daylight saving flag, weekday, hour differenc
- Vextorium
Validate EAN-8, EAN-13, UPC-A, GTIN-14, ISBN-10 and ISBN-13: check digit (and the expected one if wrong), code type, GS1 prefix and registering country, plus IS
- Vextorium
Validate a Legal Entity Identifier (LEI, ISO 17442): 20-character format and mod-97 check digits, split into LOU prefix and entity part. Computed locally; does
- Vextorium
Validate a securities ISIN (ISO 6166): format, check digit, issuing country and embedded CUSIP (US/CA, with its own check) or SEDOL (GB/IE). Computed locally; n
- Vextorium
Reference data for a blockchain by its chainId: name, gas/native token, block explorers, number of public RPCs and website. Utility for multi-chain agents. Live
- Vextorium
Translates a 4-byte function selector (e.g. 0xa9059cbb) or a 32-byte event topic into its human-readable signature (e.g. transfer(address,uint256)). Essential f
- Vextorium
Checks whether a smart contract's source code is verified and public on Sourcify, on any EVM chain: match type, contract name, compiler, number of functions and
- Vextorium
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 o
- Vextorium
Trading pairs for a token across all chains (by symbol, name or address): price, 24h/1h change, on-chain liquidity, 24h volume, market cap, DEX and chain. Filte