3Commas
Freemium
Crypto trading bots and portfolio tools that connect to major exchanges.
All tools
A developer-friendly brokerage API for building trading apps and algorithms.
About Alpaca
Alpaca provides trading APIs for stocks, options and crypto, designed for developers who want to build their own apps and strategies. You can send orders, stream market data and manage accounts programmatically.
A paper trading environment lets you test algorithms safely, and an MCP server lets AI assistants interact with the API. Businesses also use Alpaca to power brokerage features in their own products.
Alpaca offers commission-free trading for individuals and usage-based plans for market data and broker partners. It is popular with algorithmic traders and fintech builders.
Standout features
- Trading API
- Market data streaming
- Paper trading
- Options and crypto
- MCP server
- Broker-as-a-service
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