other

HMAC calculator, HMAC-SHA256 SHA512 SHA1 MD5, message authentication code, hash with secret, signed hash, API request signing, webhook signature, JWT signature. Compute HMAC of a message with a secret key using any standard hash algorithm.

中文市场地理SERP：用中文关键词查Google，返回结构化结果（标题/链接/摘要）。hl=zh-CN界面+gl地区定向，覆盖中文用户真实搜索视角。支持web/news/shopping。China SERP, Chinese keyword search, zh-CN localized Google results for agents doing China market research, Chinese SEO rank tracking, cross-border ecommerce.

Check the exact ERC20 allowance an owner has granted to a spender contract, flagging unlimited approvals for revocation, on EVM chains. token allowance, approval check, unlimited approval, revoke allowance, spender allowance, wallet security

Image search — image results (title, image URL, source) for any query. For visual sourcing, creative research, media discovery and content pipelines. image search, visual search, image results, media, creative research, content discovery

I Ching hexagram lookup, 卦象查询, 64 hexagrams reference, Yijing gua by number, King Wen sequence, Qian Kun Zhun Meng, 乾坤屯蒙, hexagram meaning, hexagram name. Look up a specific I Ching hexagram by number (1-64) and get its full traditional interpretation.

Lucky moving day, Feng Shui moving date selection, 搬家择日, 入宅择吉, Chinese moving day calculator, auspicious move-in dates, housewarming date, yi an chuang, 宜安床, pick lucky day to move. Find auspicious days for moving house within a date range, considering the resident's birth year (zodiac clash) and traditional moving rules.

Traditional to Simplified Chinese, 繁体转简体, 繁简转换, Taiwan to mainland Chinese, BIG5 to GB, OpenCC traditional simplified, Chinese variant conversion, Chinese normalization. Convert Traditional Chinese (Taiwan/HK) to Simplified Chinese (mainland China).

Markdown to HTML, HTML to Markdown, MD to HTML, markdown renderer, GFM markdown parser, convert md to html, convert html to markdown, markdown converter, html parser. Bidirectional convert between Markdown and HTML. Direction by 'from' param.

Password entropy calculator, Shannon entropy, bits of randomness, charset size, mathematical password strength metric for security audits.

I Ching 64 hexagrams full list, all Yijing gua, hexagram catalog, King Wen sequence, 易经六十四卦目录, 64 trigrams pairs. Return all 64 I Ching hexagrams with name, number, and traditional sequence.

Duration calculator, time difference, elapsed time, days between dates, hours between times, age calculator, how long ago, countdown, time span. Compute the duration between two timestamps with human-readable breakdown (years, months, days, hours, minutes, seconds).

Live airport arrivals board by IATA code: incoming flights with origin, airline, terminal, gate, baggage belt, scheduled and revised arrival times. 机场到港航班板：到达航班的出发地、航司、登机口、行李转盘、时刻。空港到着便ボード。Tablero de llegadas. 공항 도착 항공편. Query: ?airport=JFK

Estimate the price impact (slippage) of a swap of a given size by comparing Uniswap V3 quotes at minimal vs target size - tells trading agents how much a large order will move the price against them before they execute, on-chain data LLMs cannot compute. price impact, slippage estimate, swap slippage, large trade impact, market depth, liquidity check

Chinese lunar to solar conversion, lunar to Gregorian, 农历转公历, Chinese lunar date to Western calendar, reverse lunar calendar lookup. Convert Chinese lunar date (year-month-day) back to Gregorian Western calendar date. Handles leap months in Chinese lunar calendar.

Number divination, 数字占卜, numerology oracle, digit-based fortune telling, lucky number derivation, Chinese number prediction. Take 3-6 random digits and derive a divinatory hexagram or interpretation using folk numerology.

Geo-targeted web search — organic results as seen from a specific country via residential routing. For localized SEO, regional pricing, availability checks and market-entry research. geo search, localized serp, country targeting, regional search, international seo, cross-border research, market check

JSON to YAML, YAML to JSON, yaml parser, json to yaml converter, config file converter, yaml config, json string to yaml, convert yaml to json, yml json. Bidirectional convert between JSON and YAML with pretty-print.

US trade flows by commodity / HS category

US labor-market signal (jobs, wages, JOLTS)

Critical-minerals supply concentration & US import reliance

Aggregate congressional buy/sell signal (last 30d)

US consumer-demand / retail-sales signal

Parse a user agent string into structured data

Latest news for any US stock — top 10 articles from the last 7 days, with headline, summary, source, and URL. $0.005 USDC per call.