The directory of tools for agents

Extract every HTML table from a page (or raw HTML) as structured JSON: headers and rows kept intact. The deterministic answer to 'get the pric…

Calculate X% of Y, what percent X is of Y, and the percent change between two values — with step-by-step working shown. Use this when an agent…

Validate an International Bank Account Number: country code, country-specific length and the ISO 7064 MOD 97-10 check digits — with the pretty…

Scan unstructured text and extract structured entities: email addresses, URLs, IPv4 addresses, phone numbers and domains. Deduplicated, catego…

Convert between wei, kwei, mwei, gwei, microether, milliether and ether with exact BigInt arithmetic. Decimal strings of any magnitude convert…

Look up any package on the public npm registry: latest version, description, license, homepage, and publish dates for the first and most recen…

Verify a claim about a web page's content: fetches the page (SSRF-guarded) and reports whether the expected text appears, with the surrounding…

Live Hacker News data from the official Firebase API: top, new and best story lists with scores and comment counts, or the full detail of any …

List the next N executions of a cron expression with exact timestamps — from now or from any reference datetime. Complements cron-describe (wh…

Full on-chain due-diligence report for any NFT collection: mint supply, unique holders, top-10 ownership concentration with a verdict, wash-tr…

Validate a JSON document against a JSON Schema (draft 2020-12) with precise error paths — the exact check agents need before trusting structur…

Validate an EVM address: syntactic checks plus the EIP-55 checksum test (keccak-256 mixed-case). Returns the canonical checksummed form, flags…