General Utilities x402 offerings

Calculate English Scrabble tile score for a word or phrase with per-letter breakdown.

Roll dice such as d20, 2d6 or 3d8+2 for tabletop RPGs, simulations, probability sampling, games and randomized agent decisions.

Convert text into NATO phonetic spelling using Alfa Bravo Charlie for voice and spelling workflows.

Calculate edit distance and normalized similarity between two strings for fuzzy matching and typo comparison.

Fair heads/tails random outcome for binary decisions, simulations, games, experiments and randomized agent workflows.

Resolve an ISO date to ISO week-year and week number.

Convert arbitrary text to a lowercase ASCII-friendly URL slug.

Guess MIME type from a filename extension with a declared-type fallback.

Generate a random ISO calendar date between optional start and end dates for tests and simulations.

Convert arbitrary filename text into a safe cross-platform filename by replacing illegal characters.

Parse and validate tabletop dice expressions such as d20, 2d6 and 3d8+2 without rolling.

Resolve a country name or ISO alpha-2/alpha-3 code to Unicode flag emoji and normalized identifiers.

Choose one item from caller-supplied options for decisions, games, experiments and sampling.

Create randomized first-round single-elimination pairings from a participant list.

Normalize caller-supplied phone numbers into international-style formatting using explicit country context when needed.

Convert compact headers and rows into a valid Markdown table for agents, docs and reports.

Calculate age in completed years on a specified date from an ISO birth date.

Check whether text is a palindrome after case, punctuation and whitespace normalization.

Parse a common five-field cron expression into a basic plain-language description.

Convert integers to canonical Roman numerals or Roman numerals back to integers.

Add a fixed duration (days/hours/minutes/seconds) to an ISO 8601 datetime.

North American VIN check-digit validation (NHTSA standard, position 9) plus WMI manufacturer lookup for a small set of known codes.

Nth percentile of a list of numbers (linear interpolation between closest ranks).

Convert text between utf-8, base64, hex, URL-percent-encoding and ascii representations.