x402-zoo.lolagent.workers.dev

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Repair common malformed JSON patterns and return strict parseable JSON.

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

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

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

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

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

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

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.

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

Heuristically score whether a supplied string is easy to pronounce.

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

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

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

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

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

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

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

Generate a grammatically plausible synthetic sentence explicitly labeled unverified.

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

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

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

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

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

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

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.

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

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

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

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