x402-zoo.lolagent.workers.dev

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

Heuristically score whether a supplied string is easy to pronounce.

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

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

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

Detect likely web technologies from a public page response headers and HTML signatures.

Compare a public webpage current text against caller-supplied prior text and report whether it changed.

Compare two Internet Archive Wayback snapshots near caller-supplied dates and return snapshot URLs and textual change evidence.

Parse a URL or hostname into subdomain, registrable domain and suffix using a bundled common-suffix table.

Extract and normalize HTTP(S) URLs from caller-supplied text.

Extract email-address-like strings from caller-supplied text.

Calculate SHA-family hashes or an FNV-1a checksum for caller-supplied text.

Calculate approximate lunar phase, illumination and lunar age for a date.

Return a short fact from a small curated static trivia set with a descriptive source label.

Generate a concise fact-like fictional statement explicitly labeled fictional.

Generate a grammatically plausible synthetic sentence explicitly labeled unverified.

Resolve country names and ISO alpha-2/alpha-3 codes using a bundled country table.

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

Return a real city from a curated worldwide city sample with country and coordinates.

Return a real randomly selected sovereign country with normalized ISO codes and flag emoji.

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

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

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

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

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

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

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

Calculate contrast ratio between two HEX colors and evaluate WCAG AA and AAA text thresholds.

Generate a random RGB and hexadecimal color for design, tests, palettes and procedural content.

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

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

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

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

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

Return a shuffled 52-card deck for games, simulations and reproducible seeded workflows.

Randomly reorder a caller-supplied list for fairness, games, experiments and randomized workflows.

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

Choose among options using caller-supplied probability weights for routing, games and simulations.

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

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

Repair common malformed JSON patterns and return strict parseable JSON.

Normalize small caller-supplied CSV payloads, trim fields and standardize row width and line endings.

Compare two JSON values and return structured changed, added and removed paths.

Generate a fictional structured story prompt with protagonist, goal, obstacle, setting and twist.

Resolve popular IATA/ICAO airport codes or airport names to city, country, coordinates and timezone using a curated dataset.

Generate a structured fictional RPG quest with objective, obstacle, twist, reward and failure consequence.

Generate a structured fictional NPC with identity, role, personality, motive, secret and mannerism.

Pay one hundredth of a cent to receive the exact sequential number of this purchase among all successful purchases of this endpoint. A tiny x402 curiosity and payment experiment.

Pay one hundredth of a cent to learn your exact sequential customer number for this x402 curiosity experiment.