World Bank income-level classifications (High, Upper-middle, etc.). No params. itemsPath '1'. Returns JSON.

Circulating supply per stablecoin, ranked — liquidity and de-peg risk signal. Live. Returns JSON.

Public companies holding BTC and ETH — totals + top holders (corporate treasury signal). Live. Returns JSON.

HEALTH: prescribable-medication autocomplete (NLM RxTerms) — name + dose form. ?q=text. Returns JSON.

Trader long/short account ratio per coin (OKX) — crowd sentiment (>1 = net long). Live. Returns JSON.

CRYPTO: fundamental profile — type, tags, proof mechanism, whitepaper, dev status, links (CoinPaprika). ?id=btc-bitcoin. Returns JSON.

CRYPTO: Bitcoin difficulty-adjustment forecast — epoch progress, estimated next change, blocks remaining (mempool.space). Returns JSON.

HEALTH: medical-condition autocomplete/normalization (NLM). ?q=text. Returns JSON.

HEALTH: COVID-19 totals for a country — cases, deaths, recovered, tests, per-million. ?country= (default USA). Returns JSON.

FINANCE: resolve a company name or ticker fragment to SEC ticker(s) + CIK (?q=apple). Returns JSON.

Annualized realized volatility (%) for BTC and ETH (Deribit) — options/risk signal. Live. Returns JSON.

Top 24h gainers and losers among the top-250 coins by market cap. Live. Returns JSON.

MARKETS: resolve a company name/query to matching tradeable ticker symbols with exchange & sector (?q=apple). Returns JSON.

CRYPTO: Bitcoin Lightning Network state — node/channel counts, capacity, Tor vs clearnet, fee rates (mempool.space). Returns JSON.

PHARMA: names/synonyms and CID for a compound (PubChem) — brand names, CAS, trade names. ?q=name. Returns JSON.

Free CDN-hosted exchange rates for USD against ~200 fiat currencies. No params; itemsPath 'usd' is the rate map. Returns JSON.

24h trading volume per DEX, ranked, with 1-day change. Live. Returns JSON.

World Bank indicator topic taxonomy (Economy & Growth, Financial Sector, etc.) with descriptions. No params. itemsPath '1'. Returns JSON.

MEDIA: Pokémon reference data — types, abilities, base stats (?name=pikachu, defaults pikachu). Returns JSON.

MARKETS: tickers trending in interest/searches right now for a region (?region=US). Returns JSON.