The directory of tools for agents

Generate cryptographically secure randomness: passwords with charset rules, hex keys of any byte length, and uniform random integers (rejectio…

Count the total days between two dates, plus the breakdown in weeks and days and in calendar years, months and days. Use this when an agent ne…

Calculate the tip for any bill, the grand total, and how much each person pays when splitting. Defaults to a 15% tip. Use this when an agent n…

Describe what you need and get back matching x402-paid APIs: our own catalog (54 tools) plus, optionally, the live x402 Bazaar of third-party …

Live transfer feed of an NFT collection with per-address accumulation analysis: net quantities received vs sent over recent activity, ranking …

Convert numbers to Roman numerals (1–3999) and Roman numerals back to numbers, with strict validation that rejects non-standard forms like III…

Convert speed units: kilometers per hour, miles per hour, meters per second, knots and feet per second with exact definitions. Use this when a…

Validate JSON with precise error messages, pretty-print it with any indent, and inspect its top-level type and element counts. Use this when a…

Compute impermanent loss for a 50/50 constant-product AMM position at any relative price move, with a reference table of common moves. Determi…

Live weather from Open-Meteo: current temperature, humidity, wind and conditions plus a 3-day forecast, by city name or coordinates. No API ke…

Repairs broken JSON: trailing commas, single quotes, unquoted keys, Python literals (True/False/None), NaN, comments, smart quotes and truncat…

Compute readability metrics for a block of text: Flesch Reading Ease score, Flesch-Kincaid grade level, and word/sentence/syllable statistics.…