Skip to main content

Documentation Index

Fetch the complete documentation index at: https://kindling.birklid.com/llms.txt

Use this file to discover all available pages before exploring further.

CommercialApplications Layer

​
Alpaca

Commission-free brokerage and trading API — build, test, and deploy algorithmic trading systems or embed investing in your fintech product.

Type

Commercial

Stack Layer

Applications

Pricing

API free + data tiers

API

Yes (core product)

​
What it is

Alpaca is a developer-first brokerage platform that provides commission-free trading via a clean REST API. It offers two main products: the Trading API for individual developers and retail algorithmic traders (stock, options, and crypto, with paper trading for testing), and the Broker API for fintechs and robo-advisors building investing features into their own products. SDKs span Python, Go, Node, .NET, and more. Market data is available in both free real-time and premium historical tiers. The API-first approach and no-commission structure make it the default starting point for most algorithmic trading projects — you can build and test a complete strategy without paying per trade or dealing with legacy brokerage integration overhead.
Use this when you’re building an algorithmic trading system, backtesting strategies with live market data, or embedding investing functionality into a fintech app and need a developer-friendly, well-documented broker that doesn’t charge per trade.

​
Get started

alpaca.markets ↗

API documentation, SDK downloads, and account setup.

TradingAgents

Multi-agent LLM framework that replicates a trading firm’s analyst structure.

Dexter

Autonomous financial research agent with real-time market data.