Live ARB to USD price (Arbitrum / US Dollar). Zero-param: GET returns current price. Arbitrum美元实时价格行情。アービトラム/米ドル 価格。Precio Arbitrum dólar. 아비트럼 달러 시세. arb usd, arb-usd, ARB price. Accepts payment on Base or Solana — either network works.

Convert USD to KRW at live rate. Pass ?amount=100 for value in Korean Won. 美元兑换韩元换算。米ドルをウォンに換算。Convertir dólar a won. 달러를 원로 환전. usd to krw convert. Accepts payment on Base or Solana — either network works.

Convert USD to JPY at live rate. Pass ?amount=100 for value in Japanese Yen. 美元兑换日元换算。米ドルを円に換算。Convertir dólar a yen. 달러를 엔로 환전. usd to jpy convert. Accepts payment on Base or Solana — either network works.

Trace the first incoming transfer that funded a Base address: funder address, asset, amount, block and time. Pairs with x402 dewash for sybil cluster and burner wallet analysis. wallet funding source, first funder, who funded this wallet, sybil detection, wallet provenance, burner cluster Accepts payment on Base or Solana — either network works.

Ranks decentralized exchanges by 24h trading volume, aggregated from DeFiLlama, revealing where on-chain swap activity is concentrated right now and the total DEX volume. Live aggregated data an LLM cannot produce. dex volume, top decentralized exchanges, onchain trading volume, defi activity Accepts payment on Base or Solana — either network works.

Base32 encoder/decoder, RFC 4648, Crockford, case-insensitive, DNS, TOTP secret, 2FA key encoding, human-readable base32. Encode binary or text to/from Base32. Accepts payment on Base or Solana — either network works.

Format any DOI into a styled citation (apa, mla, chicago, ieee, harvard, vancouver). Returns plain-text bibliography string. Use ?doi=10.1038/nature12373 and style=apa. Built for AI agents producing draft references. Accepts payment on Base or Solana — either network works.

List the ERC20 tokens an address holds on Base with symbol, decimals and formatted balance for each nonzero position. wallet tokens, token holdings, wallet portfolio, what tokens does this address hold, base wallet scan Accepts payment on Base or Solana — either network works.

Timestamp converter, unix timestamp to date, ISO 8601 converter, epoch to date, date string to unix, time format converter, utc to local time, unix time, epoch milliseconds, human readable date. Convert between unix epoch (sec or ms), ISO 8601, and human-readable date strings. Auto-detect input format. Accepts payment on Base or Solana — either network works.

Convert any DOI to BibTeX format via doi.org content negotiation. Returns ready-to-paste BibTeX entry. Use ?doi=10.1038/nature12373. Built for AI agents preparing manuscripts and reference managers. Accepts payment on Base or Solana — either network works.

Check the ERC20 allowance an owner has granted a spender, returns raw and formatted amount with token symbol and decimals on five EVM chains. token allowance, erc20 approval check, spender allowance, approval audit, revoke helper data Accepts payment on Base or Solana — either network works.

Current gas price across Ethereum, Base, Arbitrum, Optimism and Polygon in one call, returns gwei gas price and latest base fee per chain. multichain gas price, gas fee comparison, gwei, l2 gas tracker, cheapest chain for transaction Accepts payment on Base or Solana — either network works.

Extract all links from markdown: inline, reference, autolinks, images. Returns array of {type, text, url, title}. Use url param or ?text=.... Built for AI agents link auditing, broken-link detection, sitemap crawling. Accepts payment on Base or Solana — either network works.

Uniswap V3 liquidity pool stats on Ethereum by pool address: token pair, fee tier, total value locked in USD, all-time volume, current token prices and transaction count, from a subgraph behind an API key. uniswap pool, liquidity pool stats, pool tvl, pool volume, dex pool data Accepts payment on Base or Solana — either network works.

Live AVGO Broadcom stock quote (NASDAQ). Zero-param: GET returns current price. 博通股票实时报价。ブロードコム株価。Cotización Broadcom. 브로드컴 주가. AVGO stock price, broadcom quote. Accepts payment on Base or Solana — either network works.

Estimate the USD cost of a transaction (transfer, ERC20 transfer, approve, swap, NFT mint) on Base/Ethereum/Arbitrum/Optimism/Polygon from live gas price and native token price - lets agents decide whether an action is worth the fee before sending. gas cost, transaction cost, tx fee usd, how much gas, operation cost, fee estimate Accepts payment on Base or Solana — either network works.

Credit card validator, Luhn algorithm check, card number verification, card type detector, Visa Mastercard Amex Discover Diners JCB UnionPay brand identifier, PAN validation. Validate credit card number via Luhn algorithm and identify card brand. Returns validity, card type, masked number. No payment processing, validation only. Accepts payment on Base or Solana — either network works.

Convert DAI to USD at live price. Pass ?amount=1 for value in US Dollar. Dai稳定币兑换美元换算。ダイを米ドルに換算。Convertir Dai a dólar. 다이를 달러로 환전. dai to usd, Dai convert. Accepts payment on Base or Solana — either network works.

Perpetual funding rates for multiple coins in one call with extreme-rate flags signalling crowded positioning or funding arbitrage - real-time derivatives data agents monitor repeatedly, in a single request instead of N. funding rates, perp funding, funding rate multi, funding arbitrage, perpetual rates, batch funding Accepts payment on Base or Solana — either network works.

Universal stock quote with localized reference for ANY ticker: US stocks, ETFs, A-shares (600519.SS), HK stocks (0700.HK). Adds local-currency reference value on request. Params: symbol, shares, lang. 任意股票实时报价：美股/ETF/A股/港股，可附本地货币参考值。任意株価を現地通貨で参考表示。Cotización con referencia local. 현지 통화 참고 시세. Accepts payment on Base or Solana — either network works.