Alpaca vs CrowdSens

Alpaca is a registered securities broker with commission free stock trading specifically for developers and trading bots.

Alpaca offers a commission free stock trading API purpose built around automated investing. This allows developers to build algorithms and programs to trade stocks. Features include; real-time market data, a REST API and WebSocket stream, an algorithm management dashboard, paper trading features, Slack community, and more.

Rank Ordered List Consensus based on a individual lists created by a community of users.

Let people know your Top favorite things based rank ordered lists that you create. Others can create their own version of your lists too. CrowdSens real-time algorithm creates a consensus rank-ordered list based on everyone's participation.