General Utilities x402 offerings

Recall remembered text by similarity to a query (ranked by cosine similarity), not by exact key. Returns the top-k matches with scores. The retrieval half of the wallet-scoped semantic memory.

Convert a PDF to clean markdown: headings, paragraphs, and bullets reconstructed from the text layer - ready to drop into a model's context. Body: {"url":"https://…/file.pdf"}.

Parse a duration like "2h30m" / "1d4h" / "90s" to seconds, or humanize a number of seconds.

Get the ISO 8601 week number, ISO day-of-week, quarter, and day-of-year for any date. Useful for fiscal/reporting calendars, weekly aggregations, and sprint planning.

Line-by-line diff of two texts (LCS). Returns unified-style ops and change counts. Up to 2000 lines per side.

Validate, pretty-print (any indentation, 0-8 spaces), or minify JSON, optionally with object keys sorted. canonical: true returns the RFC 8785 (JCS) canonical form - keys sorted, no whitespace, ECMAS…

Turn any text into a URL-safe slug (lowercase, hyphenated, diacritics stripped).

Convert a color between hex, RGB, and HSL. Accepts "#1a2b3c", "rgb(26,43,60)", or "hsl(210,40%,17%)".

Convert CSV into a GitHub-flavored Markdown table (first row is the header).

Get the day number within the year (1-366) for any date, plus days remaining, leap-year status, percent of year complete, and a simple (Sunday-start) week number.

Validate an ISBN-10 or ISBN-13 checksum (hyphens/spaces ignored) and report which format it is.

Encode text to Morse code or decode it back. mode: encode (default) or decode. Words separated by ' / '.

Convert subtitles between SRT, WebVTT, plain text, and JSON cues. Send SRT or VTT text (auto-detected) - or a JSON cues array [{start,end,text}] with times in ms - and the target format. Deterministi…

Ask typed questions about up to 4 images (PNG or JPEG) and get answers your code can branch on: noul (yes/no probability), choice, score, and box (where something is, as edges from 0 to 1). Name each…

Greatest common divisor and least common multiple of two or more integers, computed exactly (arbitrary precision). Useful for cycle alignment, scheduling periods and fraction work. Signs are ignored;…

Hex encode or decode text. mode: encode (default) or decode.

Parse a 5-field cron expression and return the next N run times (UTC).

RFC 3986 percent-decode an input string back to its original text (%20 to space, %2F to /). Reverse of url-encode.

RFC 3986 percent-decode an input string back to its original text (%20 to space, %2F to /). Reverse of url-encode.

Base64-encode an input string. Standard encoding for binary-safe transport of text and data.

Analyze any text in one call: detected language (with script + confidence), readability (Flesch Reading Ease & Flesch-Kincaid grade with reading level) and full statistics — word/sentence/paragraph counts, reading time, lexical diversity. Offline, key-less, $0.002.

Deterministic utility operations for agents: sha256/sha512/HMAC hashing, JWT decode, base64 encode/decode, UUID generation, JSON validation, CSV↔JSON, XML→JSON, URL parsing and semver comparison. Sub…

Generate a random RFC 4122 version 4 UUID. Unique identifiers for records, requests and idempotency keys.

Financial identifier validation: IBAN validation (format, length per country, mod-97 checksum), IBAN repair suggestions for OCR errors, EU VAT number format validation. Deterministic, instant, no thi…