General Utilities x402 offerings

Convert text between camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, Title Case, lowercase and UPPERCASE.

Caesar-cipher a string. Default shift 13 (ROT13, self-inverse). Set shift for any rotation 1-25.

Parse an IPv4 CIDR block: network address, broadcast, first/last host, netmask, and host count. Optionally test if an IP is inside it.

Parse iCalendar (.ics) text into structured JSON events: summary, start/end, location, organizer, attendees, status, and RRULE. Optional bounded recurrence expansion (expand:true, capped occurrences)…

Add (or subtract) a duration to a date. duration like "2d", "-3h", "1w 2d", "90m". Returns the resulting UTC ISO timestamp.

Base64 encode or decode text. mode: encode (default) or decode. Handles URL-safe base64 on decode.

Decode a barcode or QR code from an image. Send a base64 PNG or JPEG (or a data: URL); returns the decoded text and the symbology. Reads QR, DataMatrix, and 1D barcodes (EAN/UPC/Code39/Code128/ITF/Co…

Truncate text to a maximum length, adding an ellipsis (or custom suffix). Optionally break on word boundaries.

Extract text from a PNG or JPEG image - full text, overall confidence and per-line bounding boxes - from a URL or base64 payload, Tesseract on-device (no upstream API). Default English; other ISO 639…

Convert between Unix epoch timestamps and ISO 8601 date strings in both directions. Provide either an epoch (seconds or milliseconds) or an ISO date string. Returns both representations plus UTC and …

Validate a payment card number (Luhn checksum) and detect the brand. Numbers are not stored or logged.

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

Sort the lines of a text. order: asc (default) | desc | numeric. unique:true removes duplicates; ci:true is case-insensitive.

CRC-32 checksum of a text string (hex), the IEEE polynomial used by zip/png/gzip.

Run the same input through gzip, brotli, and raw deflate at max settings and report each one's output size and ratio. Use this to decide which algorithm to actually use - the answer depends on your c…

Count characters, words, lines, and (optionally) occurrences of a substring in text.

Count business days (Mon–Fri) between two dates, inclusive of the start, exclusive of the end. Optional list of holiday dates to skip.

Base32 (RFC 4648) encode or decode text. mode: encode (default) or decode.

Compute a precise age (years, months, days) from a birth date to today (or a given date), plus total days.

Encode text to HTML entities or decode them back. mode: encode (default) or decode.

Validate a UUID and report its version (1-8) and variant. Accepts hyphenated or braced forms.

Delete a remembered document by id from the recall store.

Ask a typed question about any content and get an answer your code can branch on, not prose to parse. Send state (the content, a string or object) and questions (your own ids mapped to question objec…

Follow a short link's redirect chain (bit.ly, t.co, youtu.be, tracking links, …) without downloading any page body: returns the final URL, the final HTTP status, and every hop with its status code an…