General Utilities x402 offerings

Bulgarian Transliteration API: Cyrillic to Latin by the official Bulgarian system (Transliteration Act 2009), not ISO 9 or Russian. Returns the text, a URL slug and the letters Bulgarian does not hav…

Markdown Table Repair API: turns a broken table, tab-separated text or an HTML table into a GFM table without changing any cell - adds the alignment row and pipes, escapes a pipe in a cell, pads shor…

Parse any freeform datetime string into a structured form (GET wrapper) — $0.001 USDC

Read the aura of anything — color, tier (S/A/B/C/D/F), score 0-9999, description. $0.01 USDC.

Readability metrics: Flesch-Kincaid, word counts

Cron expression explainer: human-readable description plus the next run times (UTC) for standard 5-field cron syntax including ranges, lists and steps.

User-agent string parsing: browser, engine, OS, device type/vendor/model, CPU architecture, plus a likely-bot flag. For agents analyzing logs or adapting responses per client.

Vehicle Identification Number validation (ISO 3779): 17-char structure, check digit (position 9), WMI/VDS/VIS decomposition and model-year code.

Convert an amount between currencies and get the exchange rate. Converts between 30+ currencies (USD, EUR, GBP, JPY and more) using daily European Central Bank reference rates with cross-rate calculation, returning the converted amount, the rate and the rate date. Fast currency converter and FX rate lookup for pricing, invoicing and reporting (informational use).

ISBN validation: ISBN-10 and ISBN-13 check digits, with automatic ISBN-10 to ISBN-13 conversion for valid inputs.

Timezone conversion between IANA zones: convert a datetime (or now) from one zone to another, returning UTC instant and local wall times.

GTIN / EAN / UPC barcode check-digit validation (GS1 mod-10) for GTIN-8/12/13/14 with type identification.

Color conversion: hex or rgb() input to hex, RGB, HSL, approximate relative luminance and best text contrast (black/white).

International phone number validation and normalization (libphonenumber): validity, country, E.164, national/international formats and line type.

I Ching three-coin method, 摇卦, coin oracle, Three Coin Yi Jing, 铜钱占卜, traditional I Ching divination, changing lines coin toss, 本卦变卦 original transformed hexagram. Simulate the traditional three-coin Yi Jing divination: 6 throws producing original hexagram + transformed hexagram with changing lines. Accepts payment on Base or Solana — either network works.

Complete BaZi reading, full Chinese astrology birth chart, 八字全分析, comprehensive Four Pillars analysis, sizhu wuxing shishen dayun nayin shensha yongshen qiwang all in one. Single comprehensive endpoint combining all BaZi analyses: pillars, five elements, ten gods, major luck cycles, na yin, spirits, useful god, strength. Accepts payment on Base or Solana — either network works.

Bagua direction mapping, 八卦方位, Eight Trigrams compass, Pre-Heaven Post-Heaven Bagua direction, 先天后天八卦方位, Qian Kun Zhen Xun Kan Li Gen Dui, Heaven Earth Thunder Wind Water Fire Mountain Lake direction. Get direction mapping for each of the 8 trigrams in both Pre-Heaven and Post-Heaven schemes. Accepts payment on Base or Solana — either network works.

Five Elements analysis (五行, Wu Xing) for Chinese astrology. Computes metal wood water fire earth (金木水火土) distribution from a BaZi birth chart, scores each element, highlights strongest and weakest. Used for Chinese cosmology, element balance evaluation, BaZi element distribution. For AI agents handling Chinese astrology, traditional Chinese culture, fortune queries. Accepts payment on Base or Solana — either network works.

China city lookup, 中国城市查询, Chinese cities database, China city tier, 一线二线三线城市, China prefecture-level city, China city province, China city coordinates, Chinese city info. Look up China city information (name, province, tier, coordinates, population). Accepts payment on Base or Solana — either network works.

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. Accepts payment on Base or Solana — either network works.

Lucky bed direction, 床位方向, Feng Shui bed placement, bedroom direction, sleeping direction, where to place bed, lucky head direction, 卧床方向, Chinese bedroom layout. Calculate the optimal direction to place a bed (head direction) for a person, based on their kua number using Ba Zhai (Eight Mansions) method. Accepts payment on Base or Solana — either network works.

Na Yin, 纳音, Sound of stems and branches, 60 jia-zi musical names, Chinese sexagenary cycle nayin, 海中金 沙中土, metal in sea sand earth etc. Compute the Na Yin name for each of the four pillars in a BaZi chart. Accepts payment on Base or Solana — either network works.

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). Accepts payment on Base or Solana — either network works.

Simplified to Traditional Chinese converter, 简体转繁体, 简繁转换, mainland to Taiwan Chinese, Chinese character set conversion, GB to BIG5, OpenCC converter, Hanzi simplified traditional, Chinese localization. Convert Simplified Chinese text to Traditional Chinese (Taiwan standard). Accepts payment on Base or Solana — either network works.