Alpaca

Broker — Free

API-first brokerage enabling developers to deploy algorithmic and AI trading systems natively.

API-first brokerage infrastructure

Overview

Alpaca is a multi-tool platform built as an API-first brokerage for developers who think in code, not charts, and want direct programmatic control over execution. This Alpaca review is for people building automated systems from scratch, not traders who want a polished app to click around in. It runs on a free pricing model, backed by a free trial for anyone testing the API.

Alpaca is built natively and specifically for algorithmic trading APIs, meaning the infrastructure was designed for automated systems from day one rather than retrofitted for developers later. It offers true commission-free execution across all US stocks, and the paper trading environment is excellent for testing code against real market conditions before any real money moves. For a developer building and iterating on a trading system, that combination removes most of the friction between an idea and a live strategy running on real capital.

The honest limitation is the flip side of its strength. Alpaca requires real coding knowledge to use fully, so it offers little for someone who wants to click a button and place a trade. It also lacks a built-in retail user interface for visual analysis, meaning there is no native charting screen to lean on; you are expected to build or connect one yourself. Anyone without development skills will hit a wall almost immediately.

Alpaca covers US stocks and supports every trading style, from day trading to long-term investing, running fully automated with API access as the entire point of the platform. Starting price is Free, backed by a free trial, and it does have a mobile app despite its developer-first design. Anyone who wants a visual, point-and-click trading experience should skip Alpaca completely. Developers and advanced traders who want to build their own automated system from the ground up are exactly who this is for.

Pros

Cons

Is Alpaca Legit? FAQ

Is Alpaca legit?

Alpaca is an established, working product rated 4.5 out of 5 on G2. We list it because it has a real AI feature, not because it paid us. The biggest drawback we found: Requires custom coding knowledge to leverage the platform fully.

Is Alpaca worth it?

Alpaca is worth it if this matters to you: Built natively and specifically for algorithmic trading APIs. The trade-off: Requires custom coding knowledge to leverage the platform fully. It is free, so the only cost of trying it is your time.

How much does Alpaca cost?

Alpaca is free to use. Prices change, so confirm on the official site before you pay.

Does Alpaca have a free trial?

Yes. Alpaca offers a free trial, so you can test it before paying.

Does Alpaca have an API or MCP server?

Yes. Alpaca offers an API and an MCP server, so you can connect it to your own code, a trading bot, or an AI assistant like Claude or ChatGPT.

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