Crypto & Blockchain

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

ECONOMICS: official U.S. government quarterly FX rates for federal reporting (?country=Euro Zone; omit for latest quarter, all currencies). Returns JSON.

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

Latest bank lending interest rate for all countries; q sets how many most recent years to return. Query: ?q= 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 Context Daily: Soft Tape, Harder Dollars. Bitcoin sold toward a two-week low even after Thursday's ETF inflow improved, while the stablecoin story moved through Tether's Treasury income, Circle's New York trust charter, and a tokenized-equity market that is finding collateral and perp demand before broad spot risk returns. One payment returns the full text, and the creator is paid as it is used.

Crypto Context Weekly: Open Rails, Hard Filters. Bitcoin ETF flows repaired only weakly while ether funds took the cleaner relative bid, and the stronger theme was control: CLARITY enforcement, permissioned tokenization, BitMart withdrawals, and event-contract review. One payment returns the full text, and the creator is paid as it is used.

Crypto Context Daily: Thin Volume, Narrow Rails. BTC and ETH were roughly flat at the Aug. 1 snapshot, but global volume fell almost 48%; July Bitcoin ETF inflows closed positive, stablecoin supply stayed lower on the week, and tokenized-equity volume looked concentrated around one QQQ wrapper. One payment returns the full text, and the creator is paid as it is used.

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

Coins trending in search/interest right now (CoinGecko) — attention signal. Live. Returns JSON.

CRYPTO: where a coin trades — top exchange markets by 24h volume with price and trust score (CoinPaprika). ?id=btc-bitcoin. Returns JSON.

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

Live bikes available and open docks at every nextbike station in Leipzig, Germany, updated in real time; no params. Returns JSON.

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

Crypto sectors/categories ranked by 24h market-cap change — rotation signal (AI, memes, RWA, DePIN). Live. Returns JSON.

CRYPTO: fee/revenue detail for one DeFi protocol over 24h/7d/30d/1y/all-time with chains (DeFiLlama). ?protocol=aave|uniswap|gmx. Returns JSON.

ON-CHAIN READ: read ERC-20 totalSupply / balanceOf (?chain=base&token=&holder=&decimals=) via RPC — a deterministic oracle. Returns JSON.

Latest fossil fuel energy as a share of total energy consumption across every country. Returns JSON.

MARKETS: live regular-market quote with OHLC and 52-week range for a symbol (?symbol=AAPL). Returns JSON.

CRYPTO: live Bitcoin network hashrate (EH/s), current difficulty and 3-day trend (mempool.space). Returns JSON.

MARKETS: foreign-exchange rates for a base currency on a specific past date (?date=2020-01-02&base=USD&symbols=EUR,GBP). ECB-sourced via Frankfurter. Returns JSON.

CRYPTO: on-chain options protocols ranked by 24h/7d/30d notional volume (DeFiLlama). Returns JSON.