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Exact calculator for agents: math expressions (functions, powers, factorials), unit conversion (length, mass, volume, a…

Data conversion and checking: convert between CSV, TSV, JSON, XML and YAML (typed CSV values), and optionally validate …

Run Python 3.13 (numpy, pandas), JavaScript (Node 24) or bash in a fresh isolated container with no Internet access, an…

Your own private SQLite database that persists between calls, keyed to the paying wallet: create tables, insert, update…

Perpetual futures market data from Hyperliquid: mark and oracle price, 24h change, hourly and annualized funding rate, …

Any public-domain FRED economic time series by id (UNRATE, CPIAUCSL, GDP, DGS10, thousands more): observations with opt…

Proof of existence: anchor the SHA-256 of any text, file or URL in the Bitcoin blockchain through OpenTimestamps calend…

Live crypto prices with 24h change and market cap. Pass symbols (btc,eth,sol) or CoinGecko ids, up to 50 coins, in up t…

Total value locked for a DeFi protocol (aave, uniswap, aerodrome, lido...) and/or a chain (Base, Ethereum, Solana...), …

Search 800,000+ FRED economic series by keywords, most popular first: id, title, frequency, units, seasonal adjustment,…

Phone number check: validates a number and returns its country, line type (mobile, fixed line, toll free, VoIP...) and …

Crawl a website into clean Markdown: follows same-site links from a start page (optionally under a path prefix), up to …