Finance APIs — the leading options in 2026
We've gathered the most useful APIs in this category, with a special focus on the Israeli market.
API overview
Below are the top 6 APIs in the Finance category. Each was picked because it is reliable, well documented and especially useful in the Israeli context.
Bank of Israel FX Rates
Official Bank of Israel exchange rates (USD, EUR, GBP, more) with full history, in JSON and XML.
CoinGecko API
Leading crypto API — prices, trading volumes and history for 10,000+ coins.
CoinMarketCap API
Crypto data from Binance — high accuracy and prices from hundreds of exchanges.
Alpha Vantage
Free API for global stock data — NASDAQ, NYSE, Asia, forex and crypto.
ExchangeRate-API
Currency rates for 161 currencies with a free tier of 1,500 calls/month.
Polygon.io
Real-time market data for NASDAQ, NYSE and options — industry standard for algo trading.
How to choose between them
Rule #1: start free. Beyond saving money, free APIs tend to be simpler and faster to ship. When you consistently hit the rate limit, that's the cue to upgrade.
Rule #2: judge the docs. If you can't find a cURL example on the front page, you'll likely waste hours guessing. Prefer APIs with documentation you can read quickly.