Crypto & Blockchain

Full list of currency codes and names supported by Frankfurter (ECB set). No params; flat code-to-name object. Returns JSON.

Top live DeFi yields across all chains (DeFiLlama-sourced), TVL-filtered for safety and ranked by APY, with base vs reward split and 1-day APY change. Optional ?chain= and ?minTvl=. Replaces manual dashboard scanning. Returns JSON.

Cross-exchange perp funding divergence for BTC/ETH/SOL/XRP/DOGE across OKX, Hyperliquid, KuCoin: annualized funding per venue + the carry-arb spread (which venue to long vs short), ranked by opportunity size. A computed arbitrage signal. Returns JSON.

CRYPTO: all-time-high context — current vs ATH price, % below ATH, supply, beta (CoinPaprika). ?id=btc-bitcoin. Returns JSON.

Latest GDP per capita (current US$) for every country and region, one value each. No params. Returns JSON.

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

CRYPTO: notable events (conferences, launches, milestones) for a coin (CoinPaprika). ?id=btc-bitcoin. Returns JSON.

Provides access to the XLayer testnet blockchain network for development and testing purposes.

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

World Bank macro indicators by country (?country=US&indicator=FP.CPI.TOTL.ZG, default US inflation). Live. Returns JSON.

Latest trade price from MEXC for a symbol. Query: ?symbol= Returns JSON.

Best DEX swap route with price impact + gas across 100+ liquidity sources (KyberSwap aggregator). Query ?chain=&tokenIn=&tokenOut=&amountIn= (defaults to USDC→WETH on Base). Live execution data an LLM cannot fetch itself. Returns JSON.

CRYPTO: 30-day daily USD price history for any coin by CoinGecko id (DeFiLlama oracle, keyless). ?id=bitcoin|ethereum. Returns JSON.

CRYPTO: Bitcoin blockchain vitals — 24h tx, blocks, block interval, on-chain USD volume, difficulty, supply (blockchain.info). Returns JSON.

Latest bank lending interest rate for all countries; q sets how many most recent years to return. Query: ?q= Returns JSON.

Live Bitcoin fee estimates (sat/vB) + mempool size — on-chain congestion signal. Live. Returns JSON.

CRYPTO: OHLCV candles for any spot pair (OKX). ?instId=BTC-USDT&bar=1D (1m,5m,15m,1H,4H,1D,1W). Returns JSON.

Read ERC-20 symbol, name, decimals, and raw total supply for up to ten contract addresses using live eth_call requests.

Latest US Treasury average interest rates by security type — macro/yield signal. Live. Returns JSON.

Total value locked per blockchain, ranked — capital-flow signal across chains. Live. Returns JSON.

MARKETS: one-call live snapshot of major U.S. indices (S&P 500, Dow, Nasdaq, Russell), the VIX, and the 10-year Treasury yield. Returns JSON.

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

MARKETS: supported ISO 4217 currency codes and names (Frankfurter/ECB). Returns JSON.

ECONOMICS: U.S. savings bond issuance/redemption piece counts by series. Returns JSON.