General Utilities x402 offerings

I Ching random hexagram, Book of Changes random draw, random divination cast, 周易, 易经, 卦象随机, Yijing oracle, random 64 hexagrams, Chinese divination quick draw, casual Yi Jing reading. Generate a random I Ching hexagram (1 of 64) with its lines, judgment, image, and meaning. Accepts payment on Base or Solana — either network works.

Is the wallet paying for this request rich? Same on-chain check as /is-rich, against the payer's own address.

Validates an IBAN: country prefix, length, segment-by-segment structure and the ISO 7064 MOD 97-10 check digits, recomputing the correct ones when they are wrong. Checked against the SWIFT IBAN Registry, which also yields bank and branch identifiers and names territories sharing a prefix (Jersey uses GB). Reports every check with status, not only failures, and states what it does not check: existence, bank name, national BBAN check digits. No outbound request.

IBAN generator: construct an IBAN from a country code and the domestic account parts, computing the ISO 7064 mod-97-10 check digits. Takes a single BBAN string or named parts (bank code, branch code, account number); digit fields are left-padded with zeros to the country's registered widths. Returns the IBAN in electronic and print formats with its bank, branch and account parts. Covers the 89 SWIFT registry countries. Named parts work only where they span the whole BBAN; else pass the BBAN.

Validate an IBAN (international bank account number) — check the country, length and ISO 13616 mod-97 checksum; returns validity, country and check digits.

Validate an IBAN (international bank account number) — check the country, length and ISO 13616 mod-97 checksum; returns validity, country and check digits.

Validate an IBAN: country code, length, and the ISO 13616 mod-97 checksum.

IBAN validator: validate an IBAN's length for its country, permitted character classes per field, and the ISO 7064 mod-97-10 check digits. Returns the verdict with a specific failure reason, the electronic and print formats, and the decomposed bank code, branch code and account number according to that country's registered layout. Covers the 89 countries of the SWIFT IBAN registry. Structure and checksum only, it does not confirm the account exists.

Validate an IBAN (mod-97 checksum, length, country format) and decompose it into country, bank, branch and account parts.

Validate a BIC/SWIFT code and decompose it into bank, country, location and branch codes.

Expand an RRULE recurrence rule into its occurrence datetimes, with a human-readable description.

Build a valid .ics document from event fields (summary, start/end, location, …).

Validate a ULID and extract its embedded timestamp and time/random components.

Generate one or more lexicographically sortable ULIDs (monotonic within a call).

Generate one or more UUIDs. Supports v4 (random), v1/v7 (time), and v3/v5 (namespaced).

Validate a UUID and report its version and variant.

Express Entry CRS points calculator / skilled-worker visa eligibility estimator. Scores Canada Express Entry CRS, Australia SkillSelect, UK Points-Based System, Germany EU Blue Card, New Zealand, and Austria RWR from age, education, language, and work history. For immigration and relocation agents.

Return the singular form of an English word (handles irregulars — people → person, mice → mouse).

Choose the singular or plural form for a given count, e.g. (apple, 3) → "apples", (apple, 1) → "apple". By default the count is prepended ("3 apples"); set includeCount=false to omit it.

Split an identifier or phrase into words and render it in every common case — camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, path/case, Title Case and Sentence case. Handles …

Return the plural form of an English word (handles irregulars — person → people, mouse → mice).

Infoharmoni Atlas Pro, day.json: The whole day in one JSON file: every seller, every paying wallet and every wallet group, with the on-chain window's dates and totals and the caveats. Stamped with the snapshot date.

Infoharmoni Atlas Pro, buyers.csv: Every wallet that made an x402 payment to a seller in the last on-chain window on Base: how many payments, how much USDC, how many sellers, what kinds of things it bought, and whether it paid three or more sellers. CSV. Wallets are addresses only; nobody is named.

Per-payment rows for x402 sellers on Base: block, time, transaction, log index, direction, the other wallet, USDC, and whether a facilitator settled it on a signed authorization (x402). The rows behind the Atlas's daily totals, which are not published. $1.00 a file over x402, no key. Refusals are free. This file: rows-top3-2026-10-03-10.csv