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Live cryptocurrency prices from CoinGecko's public API: current price in USD/EUR/GBP/JPY plus 24-hour change for any co…Docs not supplied

Look up MIME content types by type substring or file extension, or list a category — covering text, application, image,…Docs not supplied

Fetch a URL server-side and extract its title, meta description, Open Graph and Twitter card tags, canonical URL and fa…Docs not supplied

Split text into retrieval-friendly chunks with a token budget and sentence-aware boundaries. Overlap between consecutiv…Docs not supplied

Decode a JSON Web Token's header and payload to readable JSON. Pure decoding: signatures are NOT verified and no secret…Docs not supplied

Encode text to base64 or decode base64 back to text. Full UTF-8 support including emoji and non-Latin scripts. Use this…Docs not supplied

Project the future value of a deposit with compound interest: choose annual, semi-annual, quarterly, monthly, weekly or…Docs not supplied

Estimate how many tokens a text consumes for each major model family (GPT, Claude, Gemini, Llama, DeepSeek) using a cha…Docs not supplied

Calculate the fixed monthly payment for a loan from its principal, annual interest rate and term in years, plus total r…Docs not supplied

Generate cryptographically random UUIDv4s or time-sortable UUIDv7s from a real CSPRNG, and validate any UUID's format, …Docs not supplied

Calculate the compound annual growth rate that takes an initial value to a final value over a given number of years — t…Docs not supplied

Convert Unix epoch timestamps to ISO/UTC dates and back. Millisecond timestamps are detected automatically; invalid dat…Docs not supplied