Blockchain · Trading
Alpaca is a US-regulated broker-dealer that provides commission-free trading APIs for both US stocks and cryptocurrencies through a unified REST and WebSocket interface. Alpaca's business model is built around empowering fintech developers and algorithmic traders with brokerage infrastructure meaning the API is first-class and well-maintained, not a secondary feature of a retail trading platform.
Alpaca Crypto API is verified for developer integrations in global and multi-region environments, providing documented endpoints, sandbox testing, and developer support.
API Key + Secret
200 req/min for data; standard limits for trading endpoints
US-based developers building commission-free crypto trading apps and algorithmic trading bots using a broker-dealer API that also covers US stocks and ETFs.