The directory of tools for agents

Fetch a web page server-side and convert it to clean markdown — headings, links, lists, tables and text, with scripts, styles and boilerplate …

Probe a GET endpoint several times and report status codes and latency statistics (min/avg/max). The cheap way for an agent to verify an API —…

Scores a password by information entropy: character-pool size, length, crack-time against an offline attack (10^10 guesses/s), and common-pass…

Look up any US telephone area code to find the state or territory it serves, or list every area code in a given state. Covers all 404 NANP cod…

Generate a QR code for any text, URL or crypto address: returns ready-to-embed SVG markup and a data URI, with configurable size and error-cor…

Compare two texts line by line using an LCS diff: exact additions, removals and context — in unified-diff style. Deterministic, unlike asking …

Parse a semantic version into major/minor/patch/prerelease, test it against a SemVer range (^, ~, >=, *) and compare two versions with the exa…

Great-circle (haversine) distance between two latitude/longitude points in km, miles and nautical miles, plus initial bearing and the geograph…

Fetch the live gas price from public RPC nodes on Base or Ethereum: wei per unit gas, converted to gwei, with a USD estimate for a standard 21…

Parse natural-language date and time expressions — "in two weeks", "next friday at 3pm", "dec 25th" — into exact ISO 8601 dates. Deterministic…

Turn a cron expression into plain English, validate it, and compute the exact next execution times. Deterministic — the answer to 'when does t…

Compute a CVSS 3.1 base score from its vector string using the exact FIRST specification (weights, scope handling, and the rounding function).…