General Utilities x402 offerings

Convert DOGE to USD at live price. Pass ?amount=1 for value in US Dollar. 狗狗币兑换美元换算。ドージコインを米ドルに換算。Convertir Dogecoin a dólar. 도지코인를 달러로 환전. doge to usd, Dogecoin convert. Accepts payment on Base or Solana — either network works.

PBKDF2 key derivation, password hashing, KDF, scrypt alternative, stretch password, derive encryption key, password-based key derivation, iterations, salt. Derive a cryptographic key from a password using PBKDF2 with configurable iterations, salt, and hash algorithm. Accepts payment on Base or Solana — either network works.

DEX trading pairs for an ERC20 token with exchange names and on-chain liquidity in USD, by contract and chain, from an indexed source behind an API key. For liquidity and routing analysis. token pairs, dex liquidity, trading pairs, liquidity pools, where to trade token Accepts payment on Base or Solana — either network works.

Percentage calculator, percent of, percent change, percent increase decrease, what percentage, tip calculator, discount calculator, markup, margin. Compute percent operations: X percent of Y, what percent X is of Y, percent change from X to Y, X increased or decreased by Y percent. Accepts payment on Base or Solana — either network works.

Percentage USD price change of a token over a chosen period, by chain and contract address or coingecko id. For momentum, alerts and screening. Live percent change. price change, percent change, momentum, pump detector, token performance Accepts payment on Base or Solana — either network works.

Implied volatility index (DVOL) for BTC or ETH from Deribit options, with the latest value, recent change and a regime read. The market-standard options IV gauge that an LLM cannot produce. Live data for options pricing, volatility regime and risk sizing. implied volatility, DVOL, options IV, vol index, deribit Accepts payment on Base or Solana — either network works.

Structured page extraction — clean markdown plus extracted links and headings as structured data, via managed retrieval with JS rendering. For RAG, crawling and content analysis. web extract, structured extraction, links, headings, markdown, rag, crawling, content analysis Accepts payment on Base or Solana — either network works.

Support and resistance levels for any crypto from live OKX candles - classic floor-trader pivots (P, R1-R3, S1-S3) plus swing-based levels clustered by strength (touches), with nearest support and resistance to the current price and distance in percent. Computed price structure for entries, stops and targets, from live data LLMs cannot derive. 加密支撑阻力位. support resistance pivot key price levels swing Accepts payment on Base or Solana — either network works.

Live META Meta Platforms stock quote (NASDAQ). Zero-param: GET returns current price. Meta脸书股票实时报价。メタ株価。Cotización Meta. 메타 주가. META stock price, meta platforms quote. Accepts payment on Base or Solana — either network works.

Native token balance of an address across major EVM chains (Ethereum, Base, Arbitrum, Optimism, Polygon, BSC) in a single call, each valued in USD with a portfolio total. Aggregates multiple RPCs and prices so an agent gets cross-chain holdings in one request. Live. multichain balance, cross chain holdings, wallet native balance, portfolio Accepts payment on Base or Solana — either network works.

Interest calculator, compound interest, simple interest, loan payment, mortgage calculator, annuity, APR APY, future value, present value, investment return. Compute simple/compound interest or annuity loan payments with configurable compounding frequency. Accepts payment on Base or Solana — either network works.

base64 encode, base64 decode, Base64 encoder, Base64 decoder, encode base64, decode base64, base64 encode online, base64url, URL-safe Base64, RFC 4648 encode, encode text to base64, decode base64 string, JWT prep, data URI encode, binary base64 encoding. Standard or URL-safe Base64 encoding/decoding of any text. For AI agents, JWT manipulation, API token handling, data URI generation, base64 converter Accepts payment on Base or Solana — either network works.

Transaction receipt lookup by hash on five EVM chains: success or reverted status, block, gas used, effective gas price and log count. transaction status, tx receipt, transaction confirmed check, gas used lookup, tx hash search Accepts payment on Base or Solana — either network works.

Random number generator, random integer, random float, dice roll, lottery numbers, coin flip, cryptographically secure random, RNG, number picker. Generate cryptographically secure random numbers in a range with optional batch count. Accepts payment on Base or Solana — either network works.

Parse YAML frontmatter from markdown (the --- block at top). Returns parsed dict, raw frontmatter, and body without frontmatter. Use url param or ?text=.... Built for AI agents indexing Jekyll/Hugo/Astro/Eleventy content sites. Accepts payment on Base or Solana — either network works.

x402 ecosystem daily time series - listings, active entities and spam ratio over the past 2+ weeks with period-over-period change - reveals whether the agent-payment economy is genuinely growing or just wash-trading churn, from a proprietary dataset that cannot be reconstructed after the fact. x402 trends, x402 growth chart, x402 history, agent economy trend, x402 time series, x402 over time Accepts payment on Base or Solana — either network works.

URL validator, URL format check, URL parser, URL syntax validation, protocol scheme detector, domain parser, query string parser, URL component extractor, RFC 3986 URI validation. Validate URL syntax and parse into components: protocol, hostname, port, pathname, search, hash. Accepts payment on Base or Solana — either network works.

UUID generator API, UUID generator, UUIDv4 generator, UUIDv7 generator, random UUID generator, unique ID generator, batch UUID generator, GUID generator, RFC 4122 UUID generator, online UUID generator, database UUID generator. Generate cryptographically random UUID v4 or time-sortable UUID v7, single or batch up to 100. For AI agents, distributed systems, database row IDs, request tracking, correlation IDs, idempotency keys. Accepts payment on Base or Solana — either network works.

ocr image, image to text, OCR API, extract text from image, image OCR, tesseract OCR, optical character recognition, scan image to text, image text recognition, image to text converter, printed text OCR. Run Tesseract OCR on any image URL. Returns extracted text with confidence. Supports English Chinese Japanese Korean German French Spanish Italian. For AI agents reading screenshots scanned documents. Accepts payment on Base or Solana — either network works.

Detect the language of input text from Unicode script and stopword analysis with a confidence score, covers Chinese, Japanese, Korean, Cyrillic, Arabic, Hebrew, Greek, Thai and major Latin languages. language detection, detect language, language identifier, what language is this text Accepts payment on Base or Solana — either network works.

Haversine great-circle distance between two coordinates. Returns km, miles, bearing degrees. Use ?lat1=X and lng1=Y and lat2=A and lng2=B. Built for AI agents for proximity checks and routing pre-filters. Accepts payment on Base or Solana — either network works.

extract meta tags from URL, HTML meta tags extractor, extract OG tags, extract Open Graph tags, extract Twitter Card meta tags, link preview meta tags. Parse any public webpage and extract title, description, keywords, canonical, favicon, language, OpenGraph (og:*), Twitter Card. For AI agents, link previews, SEO audits, content discovery. Accepts payment on Base or Solana — either network works.

Block height closest to a given unix timestamp on a chain, a primitive for historical on-chain queries. Saves agents a binary search over block times. Live block lookup. block by timestamp, block at time, historical block, archive query helper, chain block Accepts payment on Base or Solana — either network works.

Product and shopping search — listings with prices, sellers and ratings for any query. For price comparison, product discovery and competitive ecommerce research. shopping search, product search, price comparison, ecommerce, retail, product discovery, deals Accepts payment on Base or Solana — either network works.